About this company
Thermo-Seal Windows, Siding And Roofing
Thermo-Seal Windows Siding and Roofing is Melville Long Island's trusted choice for premium exterior home remodeling. Serving Melville and Long Island since 1985, we specialize in high-quality window replacement, roofing installation, vinyl & James Hardie siding, entry doors, and gutters. As a GAF Master Elite Contractor and Andersen Premier Certified Contractor, we bring unmatched expertise to every project. Unlike others, we use an exclusive in-house team—never subcontractors—to guarantee flawless craftsmanship. Whether you need a roof replacement, energy-efficient windows, or durable siding, our award-winning, A+ BBB-rated team delivers results built to last. Contact our Melville team today for a free in-home estimate!
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Reviews of nearby contractors
Review of A.J. Perri (Service) by F.C.M.
FROM THE OFFICE STAFF TO THE TECHNICIAN NOTHING BUT PERFECTION
Review of Morehouse Improvements, LLC by Betsy C.
David was well prepared, organized and knew right away he was someone that could be trusted. We are very satisfied with the work that was done.
Review of Nationwide Window & Siding (archive) by Donna N.
From start to finish, each Nationwide employee were amazing! I have not seen such excellent service in many years; not only were they professional and well skilled, but they were also attentive to my needs and very kind.
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