<?xml version="1.0"?>
<ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType><periodOfReport>2003-10-01</periodOfReport>
    <issuer>
        <issuerCik>0000004164</issuerCik>
        <issuerName>ALPINE GROUP INC /DE/</issuerName>
        <issuerTradingSymbol>ALPG</issuerTradingSymbol></issuer><reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001249525</rptOwnerCik>
            <rptOwnerName>JANSING JOHN C</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O THE ALPINE GROUP, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>ONE MEADOWLANDS PLAZA, SUITE 200</rptOwnerStreet2>
            <rptOwnerCity>EAST RUTHERFORD</rptOwnerCity>
            <rptOwnerState>NJ</rptOwnerState>
            <rptOwnerZipCode>07073</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>2003-10-01</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>A</transactionCode><equitySwapInvolved>0</equitySwapInvolved><footnoteId id="F1"/></transactionCoding><transactionAmounts><transactionShares><value>9615</value></transactionShares><transactionPricePerShare><value>.65</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>341625</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></nonDerivativeTransaction></nonDerivativeTable><derivativeTable><derivativeTransaction><securityTitle><value>Series A Cumulative Convertible Preferred Stock</value></securityTitle><conversionOrExercisePrice><value>.55</value></conversionOrExercisePrice><transactionDate><value>2003-06-23</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>P</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>0</value></transactionShares><transactionPricePerShare><value>380.00</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><value>1988-08-08</value><footnoteId id="F2"/></exerciseDate><expirationDate><value>1988-08-08</value><footnoteId id="F3"/></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>428420</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>620</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></derivativeTransaction></derivativeTable><footnotes><footnote id="F1">Grant of restricted stock.</footnote><footnote id="F2">Convertible into common stock at any time after the earlier to occur of (y) the consummation of the first public offering to stockholders of the Company of rights to purchase shares of Series A Cumulative Convertible Preferred Stock (&quot;Series A Preferred Stock&quot;) and (z) March 31, 2004, and prior to (i) the date which is 10 days preceding the date fixed for the redemption of the Series A Preferred Stock if there is no default in payment of the change of control redemption price and (ii) December 21, 2009.</footnote><footnote id="F3">The Company will redeem 1/12th of the outstanding shares of Series A Preferred Stock on December 31, 2009 and on the last day of every calendar quarter thereafter until all outstanding shares of Series A Preferred Stock have been redeemed.</footnote></footnotes><remarks/><ownerSignature><signatureName>Stewart H. Wahrsager</signatureName><signatureDate>2003-10-01</signatureDate></ownerSignature></ownershipDocument>

