Skip to main content

A Trusted Home Remodeling Company Serving Long Island, NY, Homeowners

Since 1985, Thermo-Seal has proudly built a reputation as an excellent home remodeling company among homeowners in Long Island, New York. We have the expertise, skills, and tools necessary to provide luxury exterior home upgrades that simply can’t be beat.

Our High-End Remodeling Services

We offer a full suite of remodeling solutions, including:

  • Replacement windows – We install windows in your choice of frame materials, colors, and styles—they can be custom-built to your exact specifications. Our windows are constructed with energy-efficient technology to help prevent thermal transfer, keep your home at a comfortable temperature, and potentially even reduce your energy bill. We also offer custom sliding glass doors and French doors to complement your new windows through our trusted manufacturing partner, Harvey.
  • Siding – Thermo-Seal is a certified contractor for CertainTeed and James Hardie, which means we can flawlessly install best-in-class siding that will protect and beautify your home for decades to come.
  • Roofing – As a GAF Master Elite Certified contractor, we install industry-leading asphalt shingle roofing. Our roof replacement services also include gutters and gutter systems to ensure that your home is completely protected.
  • Doors – We can bolster the curb appeal and security of your home with beautiful entry, storm, and patio doors.
  • Additional services – If you’re looking for a comprehensive exterior remodel, we can help. We also offer wood and composite decks, additions, stonework, and more.

Turn to Long Island’s Premier Home Remodeling Experts

To learn more about the most trusted home remodeling company serving Long Island, contact Thermo-Seal today. We’ll be happy to discuss your project and provide a free virtual or in-person estimate.

We make clients happy.

We Make it Easy

With customer service and craftsmanship that’s second-to-none, we make it easy
to achieve the home of your dreams.
Free, No Hassle Estimates Schedule a free in-home or virtual estimate. We’re here to help!
High Quality Products We offer the best products available, including our own brand of replacement windows.
Satisfaction Guarantee Our job is not done until you’re completely satisfied.

We've got connections.

We're certified by the industry’s leading manufacturers to offer a wide range of top quality options. View Our Credentials

Thermo-Seal Windows Siding & Roofing, Inc. is an A+ Rated BBB Accredited Business serving Westchester County, Rockland County, Nassau County, Suffolk County and Fairfield County. We offer multiple locations throughout the Tri-State Area to better serve our customers.

456 Sunrise Highway
Rockville Center, NY 11570
(866) 281-4567
Melville Office
68 South Service Road
Melville, NY 11747
(866) 281-4567
Rye Corporate Office
411 Theodore Fremd Avenue
Rye, NY 10580
(914) 925-3443
Stamford Office
263 Tresser Blvd
Stamford, CT 06901
(203) 663-3534