Expert Window Installation & Replacement in New York City
Window Installation in New York City
40 Years of Experience
Certified Professionals
Superior Workmanship with Proven Reputation
Stress-Free Process
Thermo-Seal Windows, Siding & Roofing, Inc.
Expert Window Installation Near You in New York City — Trusted by Homeowners Since 1985
When homeowners in New York City search for window installation near me, they choose Thermo-Seal for trusted service backed by more than 40 years of expertise. Since 1985, we’ve provided professional window installation that improves comfort, boosts energy efficiency, and enhances property value—using premium brands like Andersen, Pella, and Harvey.
Our certified, in-house team handles every installation—no subcontractors—so you receive consistent, high-quality results from start to finish. From Manhattan to the outer boroughs, Thermo-Seal delivers seamless window installation throughout New York City.
Whether you're in a pre-war co-op or a modern brownstone, New York City properties deserve windows that match their style and perform all year long—and Thermo-Seal delivers exactly that.
Thermo-Seal window Installation in New York City
Professional Window Installation in New York City That Transforms Your Home
New windows can dramatically improve your home’s energy efficiency, noise control, and appearance. At Thermo-Seal, we provide customized window installation in New York City, combining high-performance materials with precision craftsmanship.
We install a wide range of window types, including:
✔ Double-hung and casement windows for traditional charm and airflow
✔ Bay and bow windows that create openness and add natural light
✔ Sliding and picture windows for clean lines and unobstructed views
✔ Custom windows to match unique layouts and historic architecture
Every New York City window installation is handled with care, ensuring a perfect fit, reliable sealing, and long-term durability.
Why Homeowners Choose Thermo-Seal for Window Installation in New York City
Thermo-Seal has been the go-to name in window installation for New York City homeowners for more than four decades. Our reputation is built on consistent quality, trusted products, and service that stands out in a city that demands excellence.
Why NYC homeowners trust Thermo-Seal:
✔ Certified Professionals
We’re Andersen Certified and a member of America’s Home Remodeling Group—bringing expertise to every New York City installation.
✔ Top Window Brands
We work with leading manufacturers like Andersen, Harvey, and Pella to ensure optimal performance and aesthetics.
✔ No Subcontractors
Our fully in-house crew handles all window installations in New York City, delivering uniform quality across the five boroughs.
✔ Highly Rated Service
With an A+ BBB rating and Angi Super Service Award, Thermo-Seal is known for its commitment to customer satisfaction and detail.
What’s Included in Our Window Installation Service in New York City
Thermo-Seal offers a full-service, start-to-finish approach for window installation in New York City—simplifying the process while delivering exceptional results.
Here’s what to expect:
✔ Free On-Site Estimate: We visit your NYC home, take precise measurements, and provide a no-obligation quote.
✔ Design & Product Selection: Choose energy-efficient windows that complement your space and needs.
✔ Expert Installation: Our crew installs windows to manufacturer specifications for airtight performance.
✔ Clean-Up & Final Inspection: We treat your space with care and ensure every window is fully functional.
✔ Warranty Protection: You’ll receive coverage from leading manufacturers along with Thermo-Seal’s satisfaction guarantee.
How Long Does a Window Installation Take in New York City?
Most window installation projects in New York City can be completed in a day, depending on access and window count. Our team works efficiently—even in tight urban spaces—to ensure a fast, clean, and accurate installation process with minimal disruption.
How Much Does Window Installation Cost in New York City?
The cost of window installation in New York City depends on the window size, material, style, and total number needed. Thermo-Seal offers free, on-site consultations and transparent pricing—so you know exactly what to expect.
We’ll help you find a solution that fits your space and your budget. Plus, with 0% financing options, updating your NYC windows has never been more manageable.
The Benefits of Professional Window Installation in New York City
Proper window installation in New York City is essential—not only for comfort, but also for noise control, energy savings, and protection from the elements. With Thermo-Seal, you get professional results you can trust.
✔ Cut heating and cooling costs with sealed, insulated windows
✔ Keep out city noise for a quieter living environment
✔ Improve curb appeal and property value with clean, tailored designs
✔ Block out air drafts, moisture, and pollution
✔ Add lasting comfort and functionality to your home
For expert window installation in New York City, Thermo-Seal delivers performance where it matters most.
Frequently Asked Questions About Window Installation in New York City
1. Do I need to replace all my windows at once?
Not necessarily. While many homeowners choose to install all new windows for consistent performance and aesthetics, Thermo-Seal can complete window installation in phases that fit your budget and timeline.
2. Are new windows really more energy-efficient?
Yes. Modern windows use advanced glass coatings, insulated frames, and precision sealing to reduce energy loss. A professional window installation ensures these benefits are fully realized, saving you money year-round.
3. Can I install windows myself?
DIY installation can lead to air leaks, moisture damage, and voided warranties. Professional window installation by Thermo-Seal ensures manufacturer compliance, long-term durability, and a perfect fit.
4. How do I prepare my home for installation day?
Clear access to windows by moving furniture, curtains, or blinds. Our team handles the rest—protecting floors, removing old windows, and completing your new window installation with care and efficiency.
5. What makes Thermo-Seal different from other window installers?
Thermo-Seal has been performing window installation near me since 1985 with certified in-house professionals, top-quality materials, and award-winning service. Our legacy of trust, craftsmanship, and accountability sets us apart from typical contractors.
Schedule Your Free Window Installation Estimate Today
When it comes to window installation near me, no one matches Thermo-Seal’s proven experience, product quality, and customer satisfaction. Since 1985, we’ve helped thousands of homeowners replace and install windows that look beautiful and perform flawlessly for decades.
Contact us today to schedule your free in-home estimate and see why Thermo-Seal is the Tri-State’s trusted name in window installation.
📞 Call (866) 901-6808 or visit one of our offices in Rockville Centre, Rye, Stamford, or Melville to get started.
- 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
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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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