Expert Window Installation & Replacement in Melville

Window Installation in Melville

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 Melville — Trusted by Homeowners Since 1985

If you're looking for window installation near me in Melville, Thermo-Seal is the name homeowners trust for quality work and decades of experience. Since 1985, we’ve specialized in expert window installation that enhances energy efficiency, comfort, and curb appeal—featuring premium products from Andersen, Pella, and Harvey.

Our certified, in-house team handles every detail—no subcontractors, just consistent, skilled craftsmanship. From start to finish, Thermo-Seal makes window installation in Melville simple, smooth, and completely worry-free.

Set between major business hubs and quiet suburban neighborhoods, Melville homes deserve windows that perform as well as they look—and Thermo-Seal is here to make that happen.

Schedule A Free In-Home Estimate

Thermo-Seal window Installation in Melville

Professional Window Installation in Melville That Transforms Your Home

Installing new windows doesn’t just brighten your space—it boosts insulation, elevates aesthetics, and increases overall home performance. Thermo-Seal brings decades of expertise to every window installation in Melville, using only the highest-quality materials to ensure long-lasting value.

We install a full range of window types, including:

✔ Double-hung and casement windows that provide timeless appeal and ventilation
✔ Bay and bow windows that expand interiors and maximize sunlight
✔ Sliding and picture windows for clean sightlines and modern style
✔ Custom windows tailored for unique architectural elements or historic homes

Every window installation in Melville is performed with close attention to detail—resulting in a quiet, energy-efficient, and more comfortable living environment.

Why Homeowners Choose Thermo-Seal for Window Installation in Melville

With over 40 years of experience, Thermo-Seal has become a go-to choice for window installation in Melville and across the Tri-State region. Homeowners trust us to combine advanced installation techniques with reliable craftsmanship and transparent service that lasts.

Here’s what sets us apart:

✔ Certified Window Specialists
As an Andersen Certified Contractor and proud member of America’s Home Remodeling Group, our knowledge runs deep.

✔ Top-Brand Windows
We work with trusted names like Andersen, Harvey, and Pella—delivering lasting performance and great looks.

✔ In-House Installation Team
We don’t outsource—our full-time crew ensures consistent quality every time we take on a window installation in Melville.

✔ Highly Rated Service
We’re proud of our A+ BBB rating and Angi Super Service Award—earned by going above and beyond for our clients.

From start to finish, Thermo-Seal brings professionalism, precision, and peace of mind to every Melville window installation project.

Harvey Building Products
Andersen Certified Contractor (premiere)

What’s Included in Our Window Installation Service in Melville

When you choose Thermo-Seal for your window installation in Melville, you’re not just buying new windows—you’re getting a complete solution designed for performance and peace of mind.

Here’s what the process includes:

✔ No-Pressure Consultation: We’ll take exact measurements and provide a detailed quote—no hidden costs, no sales pressure.
✔ Product Selection: Explore a wide variety of energy-efficient styles to match your home’s needs.
✔ Expert Installation: We follow strict manufacturer guidelines to ensure your windows are sealed tightly and perform as intended.
✔ Clean-Up & Inspection: We respect your space, clean up thoroughly, and test every window to make sure it works perfectly.
✔ Warranty Coverage: Your Melville installation is protected by strong manufacturer warranties and Thermo-Seal’s service guarantee.

How Long Does a Window Installation Take in Melville?

Most window installation projects in Melville are completed within a single day, depending on how many windows need to be replaced. Our efficient in-house team works with care and speed—making sure each window is properly sealed, aligned, and ready to perform. You’ll get fast, reliable service with no corners cut.

How Much Does Window Installation Cost in Melville?

Window installation costs in Melville vary based on window size, material, and style. At Thermo-Seal, we make pricing simple by offering free, no-obligation in-home estimates with zero surprises.

We’ll guide you toward the best options for your home and budget. Plus, with 0% interest financing, updating your windows in Melville is more accessible than ever.

The Benefits of Professional Window Installation in Melville

Choosing professional window installation in Melville from Thermo-Seal helps protect your home and add long-term value. Poorly installed windows can cause leaks, drafts, and higher bills—our work is built to avoid those issues from day one.

✔ Stop energy waste and reduce heating/cooling costs
✔ Improve indoor comfort by eliminating cold spots and heat intrusion
✔ Refresh your home’s exterior with perfectly fitted windows
✔ Add property value with better function and style
✔ Guard against air leaks, noise, and water damage

From aesthetics to energy savings, Thermo-Seal ensures your Melville home benefits fully from expert window installation.

Frequently Asked Questions About Window Installation in Melville

  • 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.

Request A Free Estimate Today

Request A Free Estimate


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Thermo-Seal Windows, Siding & Roofing, Inc.

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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.

Leonora M.

CLIENT REVIEW

5 Stars Rating

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!

Juliane P.

CLIENT REVIEW

5 Stars Rating

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Thermo-Seal 5 Stars Google Rating

5.0+

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