Expert remodeling
Roofing Installation & Replacement in Nassau County, NY
40 Years of Experience
Certified Professionals
Superior Workmanship with Proven Reputation
Stress-Free Process
Thermo-Seal Windows, Siding & Roofing, Inc.
Roofing in Nassau County That Delivers Protection and Curb Appeal
If you're looking for reliable roofing services in Nassau County, NY, Thermo-Seal has you covered. With over 40 years of experience serving Long Island homeowners, we install top-quality roofing systems designed to stand up to the region’s changing seasons and enhance your home's appearance. From homes in Baldwin to properties in Great Neck, our roofing solutions are built for long-term value.
All work is performed by our in-house, factory-certified crew—never subcontractors—so you get consistent craftsmanship from start to finish. Whether you’re dealing with leaks, missing shingles, or an aging roof, we provide Nassau County homeowners with roofing that performs and protects.
Thermo-Seal Exterior Remodeling
Full-Service Roofing in Nassau County Built to Withstand the Elements
systems from brands like GAF, chosen for their ability to handle Long Island’s coastal and seasonal conditions.
✔ Installed by factory-trained, full-time professionals
✔ Designed to resist wind, moisture, and UV exposure
✔ Materials and styles to match all types of Nassau County homes
Why Nassau County Homeowners Trust Thermo-Seal for Roofing
With more than 20,000 successful exterior projects since 1985, Thermo-Seal is a go-to roofing company for Nassau County residents who value quality, dependability, and professionalism.
Why homeowners across Nassau County choose Thermo-Seal:
✔ GAF Master Elite Certified – A designation awarded to only a select few contractors
✔ No Subcontractors – Our own expert team completes every job
✔ A+ BBB Rating – Built on decades of trusted service
✔ Weather-Resistant Roofing – Materials that handle the wear and tear of coastal weather
✔ Energy-Efficient Solutions – Reduce attic heat and improve your home’s thermal performance
From Long Beach to Westbury, Nassau County homeowners count on Thermo-Seal for roofs that last.
Roofing Replacement in Nassau County That Solves Real Home Issues
A failing roof can lead to interior damage, rising energy bills, and long-term structural problems. Thermo-Seal provides roofing replacement in Nassau County that tackles these issues while improving your home’s safety and efficiency.
✔ Leaks and Water Stains? We install watertight, storm-ready systems
✔ Missing or Damaged Shingles? Get durable, weather-resistant replacements
✔ Poor Ventilation? Our roofing systems promote airflow and reduce heat buildup
✔ Aged Roof? Full replacements designed for longevity and performance
Thermo-Seal installs roofing in Nassau County that protects your home and gives you lasting peace of mind.
Schedule Your Free Estimate Today
Ready to transform your home’s exterior with expert remodeling that lasts? Contact Thermo-Seal today for a free in-home estimate and experience why thousands of homeowners across New York and Connecticut trust us for windows, siding, roofing, doors, and more.
Request A Free Estimate
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Contact Info.
Phone Number:
Email Address:
Showroom:
456 Sunrise Highway, Rockville Center NY 11570 - (516) 689-7214
Rye Corporate Office:
411 Theodore Fremd Avenue, Rye NY 10580 - (914) 635-3748
Stamford Office:
263 Tresser Blvd., Stamford, CT 06901 - (203) 990-1812
Melville Office:
68 South Service Road., Melville NY 11747 - (631) 710-6937
CLIENT REVIEWS
What Our Clients Are Saying About Us
Thermo-seal Windows provides exceptional customer service alongside high-quality products. Recently, I had the majority of my home's windows replaced by Aaron's team, and their performance was nothing short of impressive. They arrived on time, maintained a tidy work area, and dedicated themselves to ensuring a perfect installation of the windows.
Aaron and his team were amazing, from start to finish! They worked with us every step of the way and Aaron was always just a call or text away to answer any questions we had. The windows are perfect and we love them. We highly recommend working with Aaron and his team. They are professional, courteous and their work is top notch!
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