The Most Trusted Exterior Remodeling Contractor in Rockville Center, NY

Thermo-Seal is proud to provide expert exterior remodeling services from our location in Rockville Center, New York. For over 40 years, we have been a trusted name throughout the Tri-State Area, delivering top-quality craftsmanship and long-lasting home improvements. Whether you need replacement windows, siding installation, roof replacement, exterior doors, or gutter replacement, our team is committed to exceeding your expectations with premium products and expert installation.

Homeowners choose Thermo-Seal because we prioritize quality, durability, and customer satisfaction. Unlike other contractors, we never use subcontractors—every project is handled by our skilled, full-time employees. We also partner with industry-leading brands, offer superior warranties, and back our work with a 100% customer satisfaction guarantee.

High-Performance Replacement Windows

Upgrade your home with energy-efficient replacement windows from Thermo-Seal. We install high-quality windows from trusted brands like Andersen, Pella, and Harvey, ensuring long-term durability and superior performance. Our windows enhance curb appeal while improving insulation, reducing energy costs, and providing lasting protection against the elements.

We offer a variety of window frame materials, including:

  • Vinyl windows that provide excellent energy efficiency, low maintenance, and long-term durability.
  • Composite windows made from Fibrex® material that combine the strength of wood with the low-maintenance benefits of vinyl.
  • Wood windows that offer a timeless aesthetic and can be painted or stained to match your home’s style.
  • Fiberglass windows that are highly durable and resistant to warping, expanding, and contracting in extreme temperatures.

Expert Siding Installation

Enhance your home's exterior with our professional siding installation services. Thermo-Seal offers a range of premium siding options from top manufacturers like James Hardie and CertainTeed, ensuring lasting beauty and protection. Our siding is designed to withstand the elements while boosting energy efficiency and curb appeal.

We install the following siding materials:

  • Fiber cement siding from James Hardie that delivers exceptional durability and a wood-like appearance.
  • Vinyl siding from CertainTeed and Westlake Royal Building Products that offers a low-maintenance, cost-effective solution.
  • Wood siding in natural cedar shake that provides a classic and rustic aesthetic.

Protect Your Home With Roof Replacement

Thermo-Seal provides expert roof replacement services to ensure your home remains safe and well-protected. We work with industry-leading roofing materials that offer long-lasting performance, weather resistance, and enhanced curb appeal.

Our roofing options include:

  • Asphalt shingles from GAF, offering affordability, durability, and a variety of styles.
  • Tile roofing that delivers a stylish and long-lasting roofing solution with excellent resistance to fire and extreme weather.
  • Metal roofing that offers superior longevity and energy efficiency while requiring minimal maintenance.

Enhance Your Entryway With Premium Exterior Doors

Make a lasting first impression with exterior doors from Thermo-Seal. We offer high-quality entry doors, patio doors, French doors, and storm doors from leading brands like Therma-Tru, Pella, and Harvey. Our doors provide exceptional security, energy efficiency, and style, helping you create an inviting and well-protected home.

Defend Your Home Against Water Damage With Gutter Installation

Our gutter replacement services ensure efficient water drainage, preventing issues like foundation erosion, basement flooding, and siding damage. We also install gutter screens and guards to minimize debris buildup and reduce maintenance.

Learn More About Our Exterior Remodeling Services

Thermo-Seal is your trusted partner for exterior remodeling in the Rockville Center, NY, area. Contact us today for a free, no-hassle estimate and let us help you improve your home with expert installation and premium products.

Rockville Center, NY

Get Directions
456 Sunrise Highway
Rockville Center
,
NY
11570
516-689-7214

Monday - Saturday: 9:00AM - 8:00PM

Save Up to Half Off Your Project
Schedule Your Free In-Home Estimate
Fill out the form below to begin!
Schedule Your Free In-Home EstimateSave Up to Half Off Your Project
By submitting this form, I agree to the Privacy Policy
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
Upgrade Your Home Now & Pay Later – Interest Free!
For a limited time, enjoy convenient financing with 0% interest for up to 25 months.
Learn More
Five-Star Reviews

What Our Clients Are Saying

We strive to make the entire home remodeling experience positive for our customers—from your first phone call, until the final handshake.

"I had a very good experience with Thermo-Seal.  Chose them after interviewing many others because they're local, communicated efficiently, and offered good midrange pricing and lifetime warranty. The crew did a fantastic job with the installation. They came early and finished 5 windows in 5 hours, and then they cleaned up. Highly recommended!"

Patrick B.

Tampa, FL

"We just completed a window and siding job for our home with Thermo-Seal. We are very impressed and satisfied with the quality of their products as well as the installation. I would recommend this company & I would use them again in the future if needed."

Mindy L.

Tampa, FL

"The crew was a pleasure to work with, and we love our new windows. The installation was efficient, and the team was very professional. I’ve seen a difference in my heating bill since the install, which was our primary goal so we are very happy so far! I will work with Thermo-Seal again for a front door replacement when the time comes."

Bonnie K.

Tampa, FL

"We hired Thermo-Seal for new windows and siding and I could not be happier! Their team is on time, professional, and meticulous about their work. You can tell they take pride in their output and ensure things are done correctly the first time around. The project completed ahead of schedule and we were kept in the loop the entire time. Very happy with their work and highly recommended!"

Sarah C.

Tampa, FL

"We were referred to Thermo-Seal by a neighbor who was very pleased with the results. We replaced seven windows and a sliding patio door are thrilled with the results and how much they enhance the appearance of our home. Without hesitation, we recommend Thermo-Seal for your home improvement projects."

Frank D.

Tampa, FL

"Cannot believe how stress-free an experience it was dealing with Aaron and his team. Aaron was very patient with our multiple questions and never any sales pressure. The installation was clean, quiet and the installation team friendly and helpful. The windows were installed a few weeks before they were promised and there were no surprises. We will be strongly recommending Thermo-Seal to friends looking for replacement windows."

David B.

Tampa, FL

Read More Reviews
CALL NOW!
GET A QUOTE