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  <xsd:element id="eme_BusinessCombinationRecognizedWorkingCapital" name="BusinessCombinationRecognizedWorkingCapital" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="eme_CashPaidForAbstract" name="CashPaidForAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="eme_CreditAgreement2011Member" name="CreditAgreement2011Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="eme_CreditAgreement2013MemberMember" name="CreditAgreement2013MemberMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="eme_CurrentMaturitiesOfLongTermDebtAndCapitalLeaseObligations" name="CurrentMaturitiesOfLongTermDebtAndCapitalLeaseObligations" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="eme_DenominatorEarningsPerShareAbstract" name="DenominatorEarningsPerShareAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="eme_DocumentAndEntityInformationAbstract" name="DocumentAndEntityInformationAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="eme_EffectiveIncomeTaxRateBeforeDiscreteItems" name="EffectiveIncomeTaxRateBeforeDiscreteItems" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="eme_ExpectedGainOnSaleOfBuilding" name="ExpectedGainOnSaleOfBuilding" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="eme_IncomeFromReductionInEstimateOfCertainAccruedContractCosts" name="IncomeFromReductionInEstimateOfCertainAccruedContractCosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="eme_IncreaseBorrowingCapacity" name="IncreaseBorrowingCapacity" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="eme_LettersOfCreditMaximumBorrowingCapacity" name="LettersOfCreditMaximumBorrowingCapacity" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="eme_LongTermDebtAndCapitalLeaseObligationsNonCurrent" name="LongTermDebtAndCapitalLeaseObligationsNonCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="eme_NonCashIncomeExpenseFromContingentConsiderationArrangements" name="NonCashIncomeExpenseFromContingentConsiderationArrangements" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="eme_NumeratorEarningsPerShareAbstract" name="NumeratorEarningsPerShareAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="eme_PaymentsForContingentConsiderationArrangements" name="PaymentsForContingentConsiderationArrangements" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="eme_RangeOfLetterOfCreditFees" name="RangeOfLetterOfCreditFees" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="eme_RepconStricklandMember" name="RepconStricklandMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="eme_RepurchaseProgramDec052013Member" name="RepurchaseProgramDec052013Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="eme_RepurchaseProgramSep262011Member" name="RepurchaseProgramSep262011Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="eme_RevolvingCreditFacility2013MemberMember" name="RevolvingCreditFacility2013MemberMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="eme_TermLoan2013Member" name="TermLoan2013Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="eme_UnitedKingdomConstructionAndBuildingServicesMember" name="UnitedKingdomConstructionAndBuildingServicesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="eme_UnitedKingdomSubsidiaryMember" name="UnitedKingdomSubsidiaryMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="eme_UnitedStatesBuildingServicesMember" name="UnitedStatesBuildingServicesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="eme_UnitedStatesElectricalConstructionAndFacilitiesServicesMember" name="UnitedStatesElectricalConstructionAndFacilitiesServicesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="eme_UnitedStatesIndustrialServicesMember" name="UnitedStatesIndustrialServicesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="eme_UnitedStatesMechanicalConstructionAndFacilitiesServicesMember" name="UnitedStatesMechanicalConstructionAndFacilitiesServicesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="eme_UnrecognizedTaxBenefitsInterestincomeOnIncomeTaxes" name="UnrecognizedTaxBenefitsInterestincomeOnIncomeTaxes" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
</xsd:schema>


