<?xml version="1.0" encoding="US-ASCII"?>
<!--XBRL Document Created with WebFilings-->
<!-- -->
<linkbase xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <roleRef roleURI="http://www.matrixservice.com/role/BasisOfPresentationNotes" xlink:href="mtrx-20130930.xsd#BasisOfPresentationNotes" xlink:type="simple" />
  <roleRef roleURI="http://www.matrixservice.com/role/CommitmentsAndContingenciesAdditionalInformationDetail" xlink:href="mtrx-20130930.xsd#CommitmentsAndContingenciesAdditionalInformationDetail" xlink:type="simple" />
  <roleRef roleURI="http://www.matrixservice.com/role/CommitmentsAndContingenciesNotes" xlink:href="mtrx-20130930.xsd#CommitmentsAndContingenciesNotes" xlink:type="simple" />
  <roleRef roleURI="http://www.matrixservice.com/role/CondensedConsolidatedBalanceSheets" xlink:href="mtrx-20130930.xsd#CondensedConsolidatedBalanceSheets" xlink:type="simple" />
  <roleRef roleURI="http://www.matrixservice.com/role/CondensedConsolidatedBalanceSheetsParenthetical" xlink:href="mtrx-20130930.xsd#CondensedConsolidatedBalanceSheetsParenthetical" xlink:type="simple" />
  <roleRef roleURI="http://www.matrixservice.com/role/CondensedConsolidatedStatementsOfCashFlows" xlink:href="mtrx-20130930.xsd#CondensedConsolidatedStatementsOfCashFlows" xlink:type="simple" />
  <roleRef roleURI="http://www.matrixservice.com/role/CondensedConsolidatedStatementsOfChangesInStockholdersEquity" xlink:href="mtrx-20130930.xsd#CondensedConsolidatedStatementsOfChangesInStockholdersEquity" xlink:type="simple" />
  <roleRef roleURI="http://www.matrixservice.com/role/CondensedConsolidatedStatementsOfChangesInStockholdersEquityParenthetical" xlink:href="mtrx-20130930.xsd#CondensedConsolidatedStatementsOfChangesInStockholdersEquityParenthetical" xlink:type="simple" />
  <roleRef roleURI="http://www.matrixservice.com/role/CondensedConsolidatedStatementsOfComprehensiveIncome" xlink:href="mtrx-20130930.xsd#CondensedConsolidatedStatementsOfComprehensiveIncome" xlink:type="simple" />
  <roleRef roleURI="http://www.matrixservice.com/role/CondensedConsolidatedStatementsOfIncome" xlink:href="mtrx-20130930.xsd#CondensedConsolidatedStatementsOfIncome" xlink:type="simple" />
  <roleRef roleURI="http://www.matrixservice.com/role/DebtAdditionalInformationDetail" xlink:href="mtrx-20130930.xsd#DebtAdditionalInformationDetail" xlink:type="simple" />
  <roleRef roleURI="http://www.matrixservice.com/role/DebtAvailabilityUnderSeniorCreditFacilityDetails" xlink:href="mtrx-20130930.xsd#DebtAvailabilityUnderSeniorCreditFacilityDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.matrixservice.com/role/DebtNotes" xlink:href="mtrx-20130930.xsd#DebtNotes" xlink:type="simple" />
  <roleRef roleURI="http://www.matrixservice.com/role/DebtTables" xlink:href="mtrx-20130930.xsd#DebtTables" xlink:type="simple" />
  <roleRef roleURI="http://www.matrixservice.com/role/DocumentAndEntityInformation" xlink:href="mtrx-20130930.xsd#DocumentAndEntityInformation" xlink:type="simple" />
  <roleRef roleURI="http://www.matrixservice.com/role/EarningsPerCommonShareAntidilutiveSecuritiesExcludedFromCalculationOfDilutedEarningsPerShareDetails" xlink:href="mtrx-20130930.xsd#EarningsPerCommonShareAntidilutiveSecuritiesExcludedFromCalculationOfDilutedEarningsPerShareDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.matrixservice.com/role/EarningsPerCommonShareComputationOfBasicAndDilutedEarningsPerShareDetails" xlink:href="mtrx-20130930.xsd#EarningsPerCommonShareComputationOfBasicAndDilutedEarningsPerShareDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.matrixservice.com/role/EarningsPerCommonShareNotes" xlink:href="mtrx-20130930.xsd#EarningsPerCommonShareNotes" xlink:type="simple" />
  <roleRef roleURI="http://www.matrixservice.com/role/EarningsPerCommonShareTables" xlink:href="mtrx-20130930.xsd#EarningsPerCommonShareTables" xlink:type="simple" />
  <roleRef roleURI="http://www.matrixservice.com/role/IncomeTaxesNotes" xlink:href="mtrx-20130930.xsd#IncomeTaxesNotes" xlink:type="simple" />
  <roleRef roleURI="http://www.matrixservice.com/role/IncomeTaxesPolicies" xlink:href="mtrx-20130930.xsd#IncomeTaxesPolicies" xlink:type="simple" />
  <roleRef roleURI="http://www.matrixservice.com/role/IntangibleAssetsIncludingGoodwillAdditionalInformationDetail" xlink:href="mtrx-20130930.xsd#IntangibleAssetsIncludingGoodwillAdditionalInformationDetail" xlink:type="simple" />
  <roleRef roleURI="http://www.matrixservice.com/role/IntangibleAssetsIncludingGoodwillCarryingValueOfGoodwillBySegmentDetails" xlink:href="mtrx-20130930.xsd#IntangibleAssetsIncludingGoodwillCarryingValueOfGoodwillBySegmentDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.matrixservice.com/role/IntangibleAssetsIncludingGoodwillCarryingValueOfOtherIntangibleAssetsDetails" xlink:href="mtrx-20130930.xsd#IntangibleAssetsIncludingGoodwillCarryingValueOfOtherIntangibleAssetsDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.matrixservice.com/role/IntangibleAssetsIncludingGoodwillNotes" xlink:href="mtrx-20130930.xsd#IntangibleAssetsIncludingGoodwillNotes" xlink:type="simple" />
  <roleRef roleURI="http://www.matrixservice.com/role/IntangibleAssetsIncludingGoodwillTables" xlink:href="mtrx-20130930.xsd#IntangibleAssetsIncludingGoodwillTables" xlink:type="simple" />
  <roleRef roleURI="http://www.matrixservice.com/role/SegmentInformationNotes" xlink:href="mtrx-20130930.xsd#SegmentInformationNotes" xlink:type="simple" />
  <roleRef roleURI="http://www.matrixservice.com/role/SegmentInformationResultsOfOperationsDetails" xlink:href="mtrx-20130930.xsd#SegmentInformationResultsOfOperationsDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.matrixservice.com/role/SegmentInformationTables" xlink:href="mtrx-20130930.xsd#SegmentInformationTables" xlink:type="simple" />
  <roleRef roleURI="http://www.matrixservice.com/role/UncompletedContractsAdditionalInformationDetail" xlink:href="mtrx-20130930.xsd#UncompletedContractsAdditionalInformationDetail" xlink:type="simple" />
  <roleRef roleURI="http://www.matrixservice.com/role/UncompletedContractsGrossAndNetAmountsOfUncompletedContractsDetails" xlink:href="mtrx-20130930.xsd#UncompletedContractsGrossAndNetAmountsOfUncompletedContractsDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.matrixservice.com/role/UncompletedContractsNotes" xlink:href="mtrx-20130930.xsd#UncompletedContractsNotes" xlink:type="simple" />
  <roleRef roleURI="http://www.matrixservice.com/role/UncompletedContractsTables" xlink:href="mtrx-20130930.xsd#UncompletedContractsTables" xlink:type="simple" />
  <calculationLink xlink:role="http://www.matrixservice.com/role/BasisOfPresentationNotes" xlink:type="extended" />
  <calculationLink xlink:role="http://www.matrixservice.com/role/CommitmentsAndContingenciesAdditionalInformationDetail" xlink:type="extended" />
  <calculationLink xlink:role="http://www.matrixservice.com/role/CommitmentsAndContingenciesNotes" xlink:type="extended" />
  <calculationLink xlink:role="http://www.matrixservice.com/role/CondensedConsolidatedBalanceSheets" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_Assets" xlink:label="loc_us-gaap_Assets_0ce13e30-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AssetsCurrent" xlink:label="loc_us-gaap_AssetsCurrent_0d216a96-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_0ce13e30-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_AssetsCurrent_0d216a96-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_18320242-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_0d216a96-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_18320242-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AccountsReceivableNetCurrent" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_05404162-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_0d216a96-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_05404162-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CostsInExcessOfBillingsOnUncompletedContractsOrProgramsExpectedToBeCollectedWithinOneYear" xlink:label="loc_us-gaap_CostsInExcessOfBillingsOnUncompletedContractsOrProgramsExpectedToBeCollectedWithinOneYear_239401b2-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_0d216a96-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_CostsInExcessOfBillingsOnUncompletedContractsOrProgramsExpectedToBeCollectedWithinOneYear_239401b2-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DeferredTaxAssetsNetCurrent" xlink:label="loc_us-gaap_DeferredTaxAssetsNetCurrent_2af7d532-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_0d216a96-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_DeferredTaxAssetsNetCurrent_2af7d532-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_InventoryNet" xlink:label="loc_us-gaap_InventoryNet_6952f2e4-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_0d216a96-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_InventoryNet_6952f2e4-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncomeTaxesReceivable" xlink:label="loc_us-gaap_IncomeTaxesReceivable_6174892a-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_0d216a96-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_IncomeTaxesReceivable_6174892a-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OtherAssetsCurrent" xlink:label="loc_us-gaap_OtherAssetsCurrent_83b7103e-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="7" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_0d216a96-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_OtherAssetsCurrent_83b7103e-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_940b342e-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_0ce13e30-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_940b342e-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_9406abd4-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_940b342e-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_9406abd4-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BuildingsAndImprovementsGross" xlink:label="loc_us-gaap_BuildingsAndImprovementsGross_0fffe210-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentGross_9406abd4-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_BuildingsAndImprovementsGross_0fffe210-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_MachineryAndEquipmentGross" xlink:label="loc_us-gaap_MachineryAndEquipmentGross_78576fe0-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentGross_9406abd4-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_MachineryAndEquipmentGross_78576fe0-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="mtrx-20130930.xsd#mtrx_TransportationEquipmentGross" xlink:label="loc_mtrx_TransportationEquipmentGross_5228cb81-d172-41f9-3bad-0abc5e2a235e" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentGross_9406abd4-9656-11e2-88e7-12313d1a0274" xlink:to="loc_mtrx_TransportationEquipmentGross_5228cb81-d172-41f9-3bad-0abc5e2a235e" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FurnitureAndFixturesGross" xlink:label="loc_us-gaap_FurnitureAndFixturesGross_5869b710-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentGross_9406abd4-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_FurnitureAndFixturesGross_5869b710-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ConstructionInProgressGross" xlink:label="loc_us-gaap_ConstructionInProgressGross_2155ca7a-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentGross_9406abd4-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_ConstructionInProgressGross_2155ca7a-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_061c48ec-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_940b342e-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_061c48ec-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_5c519906-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_0ce13e30-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_Goodwill_5c519906-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_6701f814-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_0ce13e30-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_6701f814-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OtherAssetsNoncurrent" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_837d6190-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_0ce13e30-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_837d6190-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_6e1ed1d0-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_Liabilities" xlink:label="loc_us-gaap_Liabilities_6e59ec02-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_6e1ed1d0-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_Liabilities_6e59ec02-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="loc_us-gaap_LiabilitiesCurrent_6e17fb62-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_6e59ec02-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_LiabilitiesCurrent_6e17fb62-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AccountsPayableCurrent" xlink:label="loc_us-gaap_AccountsPayableCurrent_05630b34-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_6e17fb62-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_AccountsPayableCurrent_05630b34-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BillingsInExcessOfCost" xlink:label="loc_us-gaap_BillingsInExcessOfCost_0fd84138-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_6e17fb62-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_BillingsInExcessOfCost_0fd84138-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EmployeeRelatedLiabilitiesCurrent" xlink:label="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_40740782-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_6e17fb62-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_40740782-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AccruedInsuranceCurrent" xlink:label="loc_us-gaap_AccruedInsuranceCurrent_05efbf48-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_6e17fb62-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_AccruedInsuranceCurrent_05efbf48-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AccruedIncomeTaxesCurrent" xlink:label="loc_us-gaap_AccruedIncomeTaxesCurrent_05fb619a-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_6e17fb62-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_AccruedIncomeTaxesCurrent_05fb619a-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OtherLiabilitiesCurrent" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent_85404948-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_6e17fb62-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_OtherLiabilitiesCurrent_85404948-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DeferredTaxLiabilitiesNoncurrent" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesNoncurrent_2b46081a-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_6e59ec02-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesNoncurrent_2b46081a-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LongTermDebtNoncurrent" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_761f7682-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_6e59ec02-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_761f7682-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_adc32df4-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_6e1ed1d0-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_StockholdersEquity_adc32df4-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockholdersEquityBeforeTreasuryStock" xlink:label="loc_us-gaap_StockholdersEquityBeforeTreasuryStock_adc2427c-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_adc32df4-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_StockholdersEquityBeforeTreasuryStock_adc2427c-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CommonStockValue" xlink:label="loc_us-gaap_CommonStockValue_1e2a510e-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityBeforeTreasuryStock_adc2427c-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_CommonStockValue_1e2a510e-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AdditionalPaidInCapital" xlink:label="loc_us-gaap_AdditionalPaidInCapital_06e972fe-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityBeforeTreasuryStock_adc2427c-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_AdditionalPaidInCapital_06e972fe-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_a33a731a-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityBeforeTreasuryStock_adc2427c-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_a33a731a-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax_063c3aee-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityBeforeTreasuryStock_adc2427c-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax_063c3aee-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_TreasuryStockValue" xlink:label="loc_us-gaap_TreasuryStockValue_b2297f42-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_adc32df4-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_TreasuryStockValue_b2297f42-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.matrixservice.com/role/CondensedConsolidatedBalanceSheetsParenthetical" xlink:type="extended" />
  <calculationLink xlink:role="http://www.matrixservice.com/role/CondensedConsolidatedStatementsOfCashFlows" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:label="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_181e990a-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents" xlink:label="loc_us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents_3fcc8200-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_181e990a-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents_3fcc8200-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_7ca2b500-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_181e990a-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_7ca2b500-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfCommonStock_92ead8b0-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_7ca2b500-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfCommonStock_92ead8b0-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RepaymentsOfLongTermCapitalLeaseObligations" xlink:label="loc_us-gaap_RepaymentsOfLongTermCapitalLeaseObligations_a110814c-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_7ca2b500-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_RepaymentsOfLongTermCapitalLeaseObligations_a110814c-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities" xlink:label="loc_us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities_43eda0b2-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_7ca2b500-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities_43eda0b2-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ProceedsFromLongTermLinesOfCredit" xlink:label="loc_us-gaap_ProceedsFromLongTermLinesOfCredit_92e3dbe6-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_7ca2b500-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_ProceedsFromLongTermLinesOfCredit_92e3dbe6-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RepaymentsOfLongTermLinesOfCredit" xlink:label="loc_us-gaap_RepaymentsOfLongTermLinesOfCredit_a10ca05e-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="5" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_7ca2b500-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_RepaymentsOfLongTermLinesOfCredit_a10ca05e-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ProceedsFromStockPlans" xlink:label="loc_us-gaap_ProceedsFromStockPlans_93419ee8-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_7ca2b500-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_ProceedsFromStockPlans_93419ee8-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PaymentsForRepurchaseOfOtherEquity" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfOtherEquity_8973538e-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="7" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_7ca2b500-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfOtherEquity_8973538e-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7cb5e5da-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_181e990a-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7cb5e5da-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_7cc2c354-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7cb5e5da-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_NetIncomeLoss_7cc2c354-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DepreciationDepletionAndAmortization" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_328d60be-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7cb5e5da-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_328d60be-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_2a198e26-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7cb5e5da-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_2a198e26-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_GainLossOnSaleOfPropertyPlantEquipment" xlink:label="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_5a9adb72-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="4" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7cb5e5da-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_5a9adb72-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ProvisionForDoubtfulAccounts" xlink:label="loc_us-gaap_ProvisionForDoubtfulAccounts_94b5f6e8-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7cb5e5da-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_ProvisionForDoubtfulAccounts_94b5f6e8-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="loc_us-gaap_ShareBasedCompensation_ab78f61e-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7cb5e5da-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_ShareBasedCompensation_ab78f61e-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OtherNoncashIncomeExpense" xlink:label="loc_us-gaap_OtherNoncashIncomeExpense_83825128-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="7" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7cb5e5da-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_OtherNoncashIncomeExpense_83825128-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_62c142a0-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="8" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7cb5e5da-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_62c142a0-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncreaseDecreaseInCostInExcessOfBillingOnUncompletedContract" xlink:label="loc_us-gaap_IncreaseDecreaseInCostInExcessOfBillingOnUncompletedContract_630731de-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="9" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7cb5e5da-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_IncreaseDecreaseInCostInExcessOfBillingOnUncompletedContract_630731de-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncreaseDecreaseInInventories" xlink:label="loc_us-gaap_IncreaseDecreaseInInventories_63654850-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="10" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7cb5e5da-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_IncreaseDecreaseInInventories_63654850-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingAssets" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_63a56200-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="11" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7cb5e5da-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_63a56200-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayable" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayable_62fc0fe8-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="12" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7cb5e5da-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayable_62fc0fe8-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncreaseDecreaseInBillingInExcessOfCostOfEarnings" xlink:label="loc_us-gaap_IncreaseDecreaseInBillingInExcessOfCostOfEarnings_63384526-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="13" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7cb5e5da-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_IncreaseDecreaseInBillingInExcessOfCostOfEarnings_63384526-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_63111686-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="14" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7cb5e5da-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_63111686-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_7c8e1730-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_181e990a-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_7c8e1730-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_8b21b464-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_7c8e1730-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_8b21b464-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ProceedsFromSaleOfProductiveAssets" xlink:label="loc_us-gaap_ProceedsFromSaleOfProductiveAssets_932145f8-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_7c8e1730-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_ProceedsFromSaleOfProductiveAssets_932145f8-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.matrixservice.com/role/CondensedConsolidatedStatementsOfChangesInStockholdersEquity" xlink:type="extended" />
  <calculationLink xlink:role="http://www.matrixservice.com/role/CondensedConsolidatedStatementsOfChangesInStockholdersEquityParenthetical" xlink:type="extended" />
  <calculationLink xlink:role="http://www.matrixservice.com/role/CondensedConsolidatedStatementsOfComprehensiveIncome" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_20119e50-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_7cc2c354-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_20119e50-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_NetIncomeLoss_7cc2c354-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_82973dc8-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_20119e50-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_82973dc8-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.matrixservice.com/role/CondensedConsolidatedStatementsOfIncome" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_7cc2c354-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_602ea2e4-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_7cc2c354-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_602ea2e4-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaap_OperatingIncomeLoss_8028df7e-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_602ea2e4-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_OperatingIncomeLoss_8028df7e-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_GrossProfit" xlink:label="loc_us-gaap_GrossProfit_5c8cb1f8-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_8028df7e-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_GrossProfit_5c8cb1f8-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SalesRevenueServicesNet" xlink:label="loc_us-gaap_SalesRevenueServicesNet_a73bc11c-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_GrossProfit_5c8cb1f8-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_SalesRevenueServicesNet_a73bc11c-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CostOfServices" xlink:label="loc_us-gaap_CostOfServices_236e061a-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_GrossProfit_5c8cb1f8-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_CostOfServices_236e061a-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SellingGeneralAndAdministrativeExpense" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpense_aace0d80-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_8028df7e-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpense_aace0d80-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_InterestExpense" xlink:label="loc_us-gaap_InterestExpense_678fa826-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_602ea2e4-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_InterestExpense_678fa826-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_InvestmentIncomeInterest" xlink:label="loc_us-gaap_InvestmentIncomeInterest_6a12f3d2-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_602ea2e4-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_InvestmentIncomeInterest_6a12f3d2-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_852fe0f8-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_602ea2e4-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_852fe0f8-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_610ca94a-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_7cc2c354-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_610ca94a-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.matrixservice.com/role/DebtAdditionalInformationDetail" xlink:type="extended" />
  <calculationLink xlink:role="http://www.matrixservice.com/role/DebtAvailabilityUnderSeniorCreditFacilityDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.matrixservice.com/role/DebtNotes" xlink:type="extended" />
  <calculationLink xlink:role="http://www.matrixservice.com/role/DebtTables" xlink:type="extended" />
  <calculationLink xlink:role="http://www.matrixservice.com/role/DocumentAndEntityInformation" xlink:type="extended" />
  <calculationLink xlink:role="http://www.matrixservice.com/role/EarningsPerCommonShareAntidilutiveSecuritiesExcludedFromCalculationOfDilutedEarningsPerShareDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.matrixservice.com/role/EarningsPerCommonShareComputationOfBasicAndDilutedEarningsPerShareDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_b93d27d4-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_b91dcd62-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_b93d27d4-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_b91dcd62-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_6554f444-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_b93d27d4-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_6554f444-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncrementalCommonSharesAttributableToNonvestedSharesWithForfeitableDividends" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToNonvestedSharesWithForfeitableDividends_651cc592-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_b93d27d4-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_IncrementalCommonSharesAttributableToNonvestedSharesWithForfeitableDividends_651cc592-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.matrixservice.com/role/EarningsPerCommonShareNotes" xlink:type="extended" />
  <calculationLink xlink:role="http://www.matrixservice.com/role/EarningsPerCommonShareTables" xlink:type="extended" />
  <calculationLink xlink:role="http://www.matrixservice.com/role/IncomeTaxesNotes" xlink:type="extended" />
  <calculationLink xlink:role="http://www.matrixservice.com/role/IncomeTaxesPolicies" xlink:type="extended" />
  <calculationLink xlink:role="http://www.matrixservice.com/role/IntangibleAssetsIncludingGoodwillAdditionalInformationDetail" xlink:type="extended" />
  <calculationLink xlink:role="http://www.matrixservice.com/role/IntangibleAssetsIncludingGoodwillCarryingValueOfGoodwillBySegmentDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_5c519906-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_GoodwillGross" xlink:label="loc_us-gaap_GoodwillGross_5c5ddb6c-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Goodwill_5c519906-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_GoodwillGross_5c5ddb6c-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_GoodwillImpairedAccumulatedImpairmentLoss" xlink:label="loc_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss_5c5bc03e-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Goodwill_5c519906-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss_5c5bc03e-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.matrixservice.com/role/IntangibleAssetsIncludingGoodwillCarryingValueOfOtherIntangibleAssetsDetails" xlink:type="extended">
    <loc xlink:href="mtrx-20130930.xsd#mtrx_IntangibleAssetsAccumulatedAmortizationExcludingGoodwill" xlink:label="loc_mtrx_IntangibleAssetsAccumulatedAmortizationExcludingGoodwill_9ace6dde-688c-e874-90ff-0abc6ee13cfb" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_54e3539e-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_mtrx_IntangibleAssetsAccumulatedAmortizationExcludingGoodwill_9ace6dde-688c-e874-90ff-0abc6ee13cfb" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_54e3539e-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IntangibleAssetsGrossExcludingGoodwill" xlink:label="loc_us-gaap_IntangibleAssetsGrossExcludingGoodwill_67013672-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsGross" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_54b51c2c-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IntangibleAssetsGrossExcludingGoodwill_67013672-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_54b51c2c-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IndefiniteLivedTradeNames" xlink:label="loc_us-gaap_IndefiniteLivedTradeNames_66890c92-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IntangibleAssetsGrossExcludingGoodwill_67013672-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_IndefiniteLivedTradeNames_66890c92-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_6701f814-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_54e9c33c-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_6701f814-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet_54e9c33c-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_54e9c33c-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_54b51c2c-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_54e9c33c-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_54e3539e-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_6701f814-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_IndefiniteLivedTradeNames_66890c92-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.matrixservice.com/role/IntangibleAssetsIncludingGoodwillNotes" xlink:type="extended" />
  <calculationLink xlink:role="http://www.matrixservice.com/role/IntangibleAssetsIncludingGoodwillTables" xlink:type="extended" />
  <calculationLink xlink:role="http://www.matrixservice.com/role/SegmentInformationNotes" xlink:type="extended" />
  <calculationLink xlink:role="http://www.matrixservice.com/role/SegmentInformationResultsOfOperationsDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.matrixservice.com/role/SegmentInformationTables" xlink:type="extended" />
  <calculationLink xlink:role="http://www.matrixservice.com/role/UncompletedContractsAdditionalInformationDetail" xlink:type="extended" />
  <calculationLink xlink:role="http://www.matrixservice.com/role/UncompletedContractsGrossAndNetAmountsOfUncompletedContractsDetails" xlink:type="extended">
    <loc xlink:href="mtrx-20130930.xsd#mtrx_UncompletedContractsNet" xlink:label="loc_mtrx_UncompletedContractsNet_52193ff2-8cbf-6627-4e65-0abc60e5c45c" xlink:type="locator" />
    <loc xlink:href="mtrx-20130930.xsd#mtrx_UncompletedContractsCostsIncurredAndEstimatedEarningsRecognized" xlink:label="loc_mtrx_UncompletedContractsCostsIncurredAndEstimatedEarningsRecognized_f3c0a1bf-46b3-141b-f16e-0abc60e7c6d6" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_mtrx_UncompletedContractsNet_52193ff2-8cbf-6627-4e65-0abc60e5c45c" xlink:to="loc_mtrx_UncompletedContractsCostsIncurredAndEstimatedEarningsRecognized_f3c0a1bf-46b3-141b-f16e-0abc60e7c6d6" xlink:type="arc" />
    <loc xlink:href="mtrx-20130930.xsd#mtrx_UncompletedContractsBillings" xlink:label="loc_mtrx_UncompletedContractsBillings_6ebf6409-0100-60d5-6313-0abc60db73fb" xlink:type="locator" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_mtrx_UncompletedContractsNet_52193ff2-8cbf-6627-4e65-0abc60e5c45c" xlink:to="loc_mtrx_UncompletedContractsBillings_6ebf6409-0100-60d5-6313-0abc60db73fb" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CostsInExcessOfBillingsOnUncompletedContractsOrPrograms" xlink:label="loc_us-gaap_CostsInExcessOfBillingsOnUncompletedContractsOrPrograms_239a5cec-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CostsInExcessOfBillingsOnUncompletedContractsOrProgramsExpectedToBeCollectedWithinOneYear" xlink:label="loc_us-gaap_CostsInExcessOfBillingsOnUncompletedContractsOrProgramsExpectedToBeCollectedWithinOneYear_239401b2-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsInExcessOfBillingsOnUncompletedContractsOrPrograms_239a5cec-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_CostsInExcessOfBillingsOnUncompletedContractsOrProgramsExpectedToBeCollectedWithinOneYear_239401b2-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BillingsInExcessOfCost" xlink:label="loc_us-gaap_BillingsInExcessOfCost_0fd84138-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsInExcessOfBillingsOnUncompletedContractsOrPrograms_239a5cec-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_BillingsInExcessOfCost_0fd84138-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.matrixservice.com/role/UncompletedContractsNotes" xlink:type="extended" />
  <calculationLink xlink:role="http://www.matrixservice.com/role/UncompletedContractsTables" xlink:type="extended" />
</linkbase>
