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What to Expect

At Thermo-Seal Windows, Siding and Roofing, we take great pride in providing superior work and amazing customer service to all our customers in the Tri-State area. With over 40 years of combined experience, you won’t be disappointed with our products and the quality of work we deliver.

By choosing Thermo-Seal, you are getting not only the best replacement windows, siding, roofing, and home remodeling contractors, but a company with a history that stems from being the largest private brand window replacement manufacturer in the area.

Specializing in windows, siding, roofing, doors, gutters, and remodeling, Thermo-Seal stands as your trusted partner for comprehensive home enhancement and home remodeling. Our team of dedicated professionals not only ensures superior work but also provides an unparalleled level of customer service. Choose Thermo-Seal for a transformative journey towards a more beautiful and efficient home.

100% Customer Satisfaction

Our job is not done until you are completely satisfied with both our work and the level of service you receive. Every customer is treated like friends and family in order to make the entire renovation experience positive for our customers. We have an extensive list of satisfied customers who are happy to recommend our services.

Why Choose Thermo-Seal

Trust – You don’t have to worry about anything, we will take care of it all. We do not subcontract services that we offer, like many “contractors” do. There will only be our insured, well-trained team on your property.

Quality – You know what to expect. We use only the highest quality materials throughout the entire project. Many “contractors” install low grade products, especially when the project foundation can’t be seen.

Satisfaction – We don’t leave until you are completely 100% satisfied. We maintain high-quality work, which keeps overhead low to save our customers money.

Dependability – We have maintained a standard of excellence with our customers throughout our years of service. We pride ourselves with having an owner available at every project.

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