Expert Window Installation & Replacement
Window Replacement in Westchester
40 Years of Experience
Certified Professionals
Superior Workmanship with Proven Reputation
Stress-Free Process
Thermo-Seal Windows, Siding & Roofing, Inc.
Trusted Window Replacement in Westchester Since 1985
Looking for expert window replacement in Westchester? For over 40 years, Thermo-Seal has been the trusted choice for homeowners across the Tri-State Area. Our team specializes in installing energy-efficient, high-performance windows that enhance comfort, lower energy costs, and elevate your home’s appearance.
If your Westchester home has outdated, leaky, or inefficient windows, we deliver professional window replacement with expert care and long-term value.
From stately homes in Scarsdale to charming properties in White Plains, we proudly serve all of Westchester County with solutions tailored to the region’s distinct architecture and climate needs.
Thermo-Seal window replacement
Enhance Comfort, Efficiency & Curb Appeal With Professional Window Replacement in Westchester
Windows have a major impact on energy efficiency, comfort, and curb appeal. At Thermo-Seal, our Westchester window replacement services are designed to solve real issues—like worn-out frames, excessive energy bills, and drafty interiors. We install windows from trusted brands including Andersen, Pella, and Harvey, each known for durability, performance, and style.
Window replacement options for Westchester homes include:
✔ Fibrex® composite windows that offer strength and require minimal upkeep
✔ A variety of wood, fiberglass, and vinyl options to match your home’s style
✔ Insulated glass packages designed to improve comfort and cut energy waste
All window installations in Westchester are completed by our in-house team—no subcontractors—so you can count on top-tier workmanship from start to finish.
Why Homeowners Choose Thermo-Seal for Window Replacement in Westchester
For over four decades, Thermo-Seal has led the way in window replacement across the Tri-State Area. In Westchester, we’ve built a strong reputation for quality materials, expert installation, and dependable service that homeowners trust.
Why Westchester homeowners choose Thermo-Seal:
✔ Certified Professionals
We’re Andersen Certified Contractors and proud members of America’s Home Remodeling Group, ensuring every job is done right.
✔ Premium Window Brands
We work with industry leaders like Andersen, Pella, and Harvey—offering exceptional quality and style.
✔ Internal Installation Team
All work is performed by our full-time crew—not third-party contractors—so quality control is guaranteed.
✔ Top-Rated Reputation
We’re backed by an A+ rating from the BBB and multiple Angi awards, showing our commitment to honest, skilled service.
Whether you live in a historic home or a modern build, our Westchester window replacement team treats your project with care and expertise.
How Long Does Window Replacement in Westchester Take?
Most window replacement jobs in Westchester are completed in just one day. From the initial measurements to the final touch-up, our crew handles everything efficiently and thoroughly. Once the installation is complete, we make sure your home is spotless and your new windows are ready to enjoy.
What Are the Benefits of Window Replacement in Westchester?
Replacing your windows in Westchester provides long-term advantages that go beyond style:
✔ Lower Energy Bills: Reduce energy loss and improve insulation with modern windows.
✔ Comfort All Year: Say goodbye to cold drafts and hot spots for consistent indoor temps.
✔ Upgraded Curb Appeal: Fresh window styles enhance your home’s appearance and value.
✔ Noise Reduction: Soundproof glass helps create a quieter indoor space.
✔ Simple Maintenance: New windows are easier to clean and built to last.
Thermo-Seal ensures that every Westchester window replacement delivers these benefits from day one.
How Much Does Window Replacement in Westchester Cost?
Each Westchester home is unique, which means pricing for window replacement varies based on your chosen style, size, and materials. At Thermo-Seal, we offer free in-home estimates with no pressure—just honest, upfront pricing and professional guidance.
We also provide 0% interest financing, helping Westchester homeowners upgrade their windows without the financial burden.
Schedule Your Free Window Replacement Estimate in Westchester Today
Ready to experience the difference of expertly installed, energy-efficient windows? Thermo-Seal has been the Tri-State’s trusted choice for window replacement near me since 1985. Our certified team delivers the perfect combination of quality, performance, and style—backed by decades of proven results.
Schedule your free, no-hassle in-home estimate today and see why thousands of homeowners trust Thermo-Seal for their window replacement needs.
📞 Call (866) 901-6808 or visit one of our convenient offices in Rockville Centre, Rye, Stamford, or Melville.
- Rockville Centre
- Huntington
- Melville
- Farmingdale
- Plainview
- Syosset
- Roslyn
- Manhasset
- Oyster Bay
- Hauppauge
- Smithtown
- Garden City
- Massapequa
- Westbury
- Nassau County
- Suffolk County
- Long Island
- New York City
- Westchester
- Rye
- Scarsdale
- Larchmont
- Mamaroneck
- Yonkers
- White Plains
- New Rochelle
- Bronxville
- Pelham
- Harrison
- Queens
- The Bronx
- Fairfield County
- Stamford
- Greenwich
- Darien
- Westport
Frequently Asked Questions About Window Replacement in Westchester
1. How do I know when it’s time to replace my windows?
If you notice drafts, condensation between glass panes, difficulty opening or closing, or higher energy bills, it’s likely time for window replacement. Modern windows not only improve efficiency but also enhance comfort, safety, and resale value.
2. Can I replace my windows year-round?
Yes. Thermo-Seal performs window replacement in all seasons using industry best practices to minimize energy loss during installation. Our installers work quickly and cleanly, ensuring your home stays comfortable throughout the process.
3. Are replacement windows energy-efficient?
Absolutely. We install ENERGY STAR® certified windows from Andersen, Pella, and Harvey, designed to reduce heat transfer and lower energy costs. Many homeowners see noticeable savings after a professional window replacement.
4. What window materials last the longest?
Composite Fibrex® and fiberglass windows are among the most durable, combining strength, low maintenance, and excellent insulation. Vinyl windows also offer long-lasting value with minimal upkeep, making them popular choices for window replacement.
5. Why should I choose Thermo-Seal over other contractors?
Thermo-Seal has been delivering expert window replacement near me for more than 40 years. With in-house installers, premium materials, and award-winning service, we guarantee results that stand the test of time. Our reputation is built on trust, craftsmanship, and customer satisfaction—every window, every home.
Request A Free Estimate
Window Replacement Top
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!
CONTACT US
Send us a Message
Window Replacement Bottom
5.0+
GOOGLE RATING
