Expert remodeling
Siding 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.
Siding Replacement in Nassau County That Offers Style, Strength, and Efficiency
Searching for expert siding installation in Nassau County, NY? Thermo-Seal has been transforming homes across Long Island for over 40 years with premium siding solutions designed to protect, insulate, and elevate your home’s appearance. Whether you're in Rockville Centre, East Meadow, or Wantagh, our siding services are tailored to meet the needs of Nassau County homeowners.
We never subcontract—every job is handled by our own factory-trained team to ensure top-tier craftsmanship and consistency. If your siding is faded, cracking, or no longer performing, we provide full siding replacement in Nassau County that adds lasting value and protection.
Thermo-Seal Exterior Remodeling
Full-Service Siding Installation in Nassau County Designed for Long-Term Performance
Nassau County homes need siding that can withstand Long Island’s coastal humidity, winter storms, and summer heat. That’s why we install only top-rated products like James Hardie fiber cement and high-performance vinyl—built to hold up under pressure and stay beautiful over time.
✔ Installed by our experienced, in-house team
✔ Siding engineered to resist moisture, warping, and fading
✔ A range of styles and finishes to suit Nassau County’s diverse home designs
Why Nassau County Homeowners Choose Thermo-Seal for Siding Replacement
Thermo-Seal has completed over 20,000 remodeling projects since 1985, including countless siding installations throughout Nassau County. Homeowners trust us for our reliability, product knowledge, and professional service.
Why Nassau County homeowners rely on Thermo-Seal:
✔ James Hardie Certified – A proven leader in fiber cement siding installations
✔ No Subcontractors – All work performed by our skilled, full-time professionals
✔ A+ BBB Rating – Backed by years of homeowner satisfaction
✔ Built to Last – Siding materials that handle Long Island’s climate with ease
✔ Increased Energy Efficiency – Improved insulation reduces heating and cooling costs
From Bellmore to Glen Cove, Thermo-Seal is the go-to source for siding replacement in Nassau County.
Siding Installation in Nassau County That Solves Real Exterior Problems
Old or deteriorating siding can impact more than just your home’s look—it can lead to higher energy costs, water damage, and increased maintenance. Thermo-Seal’s siding solutions in Nassau County are designed to fix those issues while upgrading your home’s durability and curb appeal.
✔ Cracked or Peeling Panels? Our siding resists wear from wind, rain, and sun
✔ Poor Insulation? New siding helps regulate indoor temperatures
✔ Rotting Wood? Choose moisture-resistant materials to prevent future decay
✔ Maintenance Headaches? Enjoy low-maintenance siding that stays looking great
Thermo-Seal installs siding in Nassau County that protects your home and enhances its appearance—season after season.
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.
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Service Area
Services We Offer:
Upgrade Your Home Now & Pay Later – Interest Free!
For a limited time, enjoy convenient financing with 0% interest for up to 25 months.
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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