Whether your Staten Island or Brooklyn home requires a new roof installation, your commercial property needs a durable flat roof system, or you're facing urgent roof leaks and repairs, Alter Phase Roofing Contracting has you covered. Their experienced team of roofing contractors offers a comprehensive suite of roofing services, including shingle roof replacement, flat roofing, TPO roofing, and emergency leak repair. With a focus on quality workmanship and customer satisfaction, Alter Phase Roofing is dedicated to protecting your property and providing peace of mind.

Certifications & Awards

  • GAF certified roofing contractor


  • GAF certified roofing contractor


    Only 7% of roofers in North America are invited to become GAF Certified™ Contractors. It can’t be bought. It can only be earned.*

    Get peace of mind with a Certified™ Contractor

    At GAF, we evaluate thousands of roofers in the country and make sure they're insured and have state licenses (in states that require them) so they can offer our best warranties.


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