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        <link:definition>2144100 - Disclosure - Subsequent Events</link:definition>
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        <link:definition>2444402 - Disclosure - Subsequent Events (Details)</link:definition>
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  <xsd:element id="iesc_ControllingShareholderTextBlock" name="ControllingShareholderTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
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  <xsd:element id="iesc_PerformanceObligationNext12Months" name="PerformanceObligationNext12Months" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="iesc_ResidentialMember" name="ResidentialMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="iesc_SingleFamilyContractsMember" name="SingleFamilyContractsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="iesc_StockRepurchasePlanMember" name="StockRepurchasePlanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="iesc_VendorRelatedMember" name="VendorRelatedMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="iesc_VisaliaMember" name="VisaliaMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
</xsd:schema>
