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        <filer>
          <filerCredentials>
            <cik>0001543148</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
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      <issuerInfo>
        <issuerCik>0001782754</issuerCik>
        <issuerName>AZEK Co Inc.</issuerName>
        <secFileNumber>001-39322</secFileNumber>
        <issuerAddress>
          <com:street1>1330 W FULTON STREET, #350</com:street1>
          <com:city>CHICAGO</com:city>
          <com:stateOrCountry>IL</com:stateOrCountry>
          <com:zipCode>60607</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>877-275-2935</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Ares Corporate Opportunities Fund IV, L.P.</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Former Director</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Class A common</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>BofA Securities, Inc.</name>
          <address>
            <com:street1>One Bryant Park</com:street1>
            <com:street2>8th Floor</com:street2>
            <com:city>New York</com:city>
            <com:stateOrCountry>NY</com:stateOrCountry>
            <com:zipCode>10036</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>1389840</noOfUnitsSold>
        <aggregateMarketValue>48199651.20</aggregateMarketValue>
        <noOfUnitsOutstanding>147699313</noOfUnitsOutstanding>
        <approxSaleDate>12/04/2023</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Class A common</securitiesClassTitle>
        <acquiredDate>10/01/2013</acquiredDate>
        <natureOfAcquisitionTransaction>Pre-IPO Investment</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>1389840</amountOfSecuritiesAcquired>
        <paymentDate>10/01/2013</paymentDate>
        <natureOfPayment>Pre-IPO Investment</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>12/04/2023</noticeDate>
        <signature>/s/ Evan Hoole</signature>
      </noticeSignature>
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text: 144
  0001543148
  XXXXXXXX
  LIVE
  0001782754
  AZEK Co Inc.
  001-39322
  1330 W FULTON STREET, #350
  CHICAGO
  IL
  60607
  877-275-2935
  Ares Corporate Opportunities Fund IV, L.P.
  Former Director
  Class A common
  BofA Securities, Inc.
  One Bryant Park
  8th Floor
  New York
  NY
  10036
  1389840
  48199651.20
  147699313
  12/04/2023
  NYSE
  Class A common
  10/01/2013
  Pre-IPO Investment
  Issuer
  N
  1389840
  10/01/2013
  Pre-IPO Investment
  Y
  12/04/2023
  /s/ Evan Hoole