<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2018-06-13</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001730346</issuerCik>
        <issuerName>Charah Solutions, Inc.</issuerName>
        <issuerTradingSymbol>CHRA</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001743574</rptOwnerCik>
            <rptOwnerName>CEP HOLDINGS, INC.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>12601 PLANTSIDE DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LOUSIVILLE</rptOwnerCity>
            <rptOwnerState>KY</rptOwnerState>
            <rptOwnerZipCode>40299</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <footnotes></footnotes>

    <remarks>This Form 3 is being filed in connection with the effectiveness of the Registration Statement on Form S-1 (Registration No. 333- 225051) of Charah Solutions, Inc. (the &quot;Issuer&quot;). In connection with the closing of the Issuer's initial public offering, the Reporting Person is expected to enter into the Stockholders' Agreement (the &quot;Stockholders' Agreement&quot;), pursuant to which the Reporting Person will have the right to nominate designees to the Board of Directors of the Issuer, subject to ownership thresholds set forth in the Stockholders' Agreement. As a result, the Reporting Person herein may be deemed a director by deputization for the purposes of Section 16 of the Securities Exchange Act of 1934, as amended.</remarks>

    <ownerSignature>
        <signatureName>/s/ Charles E. Price, Authorized Signatory of CEP Holdings, Inc.</signatureName>
        <signatureDate>2018-06-13</signatureDate>
    </ownerSignature>
</ownershipDocument>
