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The Premier Home Remodeling Company Serving Manhasset, NY, Homeowners

If you’re planning an exterior remodel of your Manhasset, New York, home, turn to the experts at Thermo-Seal. Since 1985, we’ve built a reputation for excellence in terms of our high-quality products, flawless craftsmanship, and friendly customer service. As a full-scale exterior home remodeling company, we offer a wide selection of services to beautify and protect your home.

Our Home Remodeling Services

We offer high-end, customizable products to ensure that you can create the exact home aesthetic you desire. Our home remodeling solutions include:

Replacement Windows

Our expert team can replace your aging windows with energy-efficient, durable, and gorgeous new ones. With our comprehensive customization options, you can select the frame material, window style, colors, hardware, and more. We also offer coordinating custom sliding glass doors and French doors to provide beautiful continuity throughout your home.


We are certified contractors with both of our industry-leading siding manufacturing partners: CertainTeed and James Hardie. Our siding selection has been carefully curated to bring you the best in terms of beauty, protection, and durability.


As a GAF Master Elite Certified contractor, we install GAF’s premium asphalt shingle roofing. We can also upgrade your gutters and gutter system during a roof replacement.


Make a statement and protect your home against intruders, inclement weather, and thermal transfer with our robust and stylish entry, storm, and patio doors.

Additional Services

Have a remodeling idea that involves other parts of your home? Let us know—we also offer wood and composite decks, additions, stonework, and more.

Contact Us Today to Get Started

To learn more about Manhasset’s premier home remodeling company, contact Thermo-Seal today. We’d be delighted to provide a free in-home or virtual estimate and share information about our financing options.

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