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

    <schemaVersion>X0304</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2011-12-30</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000844789</issuerCik>
        <issuerName>US HOME SYSTEMS INC</issuerName>
        <issuerTradingSymbol>USHS</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001249607</rptOwnerCik>
            <rptOwnerName>BUCHHOLZ DON A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1201 ELM STREET STE 3500</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>DALLAS</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>75270</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2011-12-30</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>470</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>6.65</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>159544</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Note 2.</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Mr. Buchholz received 470 restricted stock awards as payment for fourth quarter compensation in lieu of cash payment as provided in the Company's Non-Employee Director Compensation Plan.</footnote>
        <footnote id="F2">After all  reported transactions,  Mr. Buchholz owns 159,544 shares which includes vested options to purchase 8,000 shares, directly owns 24,544 shares of USHS common stock and indirectly owns 127,000 shares, which includes 50,000 shares held by Union Hill Investments and 77,000 shares held by Union Hill Property Company, Ltd.  Mr. Buchholz is a partner in Union Hill Investments and Union Hill Property Company Ltd.  Mr. Buchholz had previously reported his beneficial ownership of 357,154 shares held by SWS Group Inc. since he was a director of SWS Group.  However, Mr. Buchholz as of November 17, 2011 is no longer a director of SWS Group and therefore disclaims any beneficial interest in the 357,154 shares owned by SWS Group.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/Don A. Buchholz</signatureName>
        <signatureDate>2011-12-30</signatureDate>
    </ownerSignature>
</ownershipDocument>
