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!