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Trusted Exterior Remodeling Contractors Since 1985

At Thermo-Seal, we have been transforming homes in the Tri-State area for nearly 40 years. As experienced exterior remodeling contractors, we take pride in delivering superior craftsmanship, high-performance products, and an unmatched commitment to customer satisfaction.

Our team consists of full-time, highly trained professionals—never subcontractors—ensuring every project meets our rigorous standards. Whether you're upgrading windows, siding, roofing, doors, or gutters, you can count on Thermo-Seal for expert installation and long-lasting results.

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We Source the Best Products for Your Exterior Remodel

Your home deserves the best, which is why we partner with leading manufacturers to bring you high-quality exterior remodeling solutions. Our energy-efficient windows come from trusted brands like Andersen, Pella, and Harvey, while our durable doors include selections from Therma-Tru. For siding, we install fiber cement from James Hardie and premium vinyl options from CertainTeed and Westlake Royal. We also provide expert roofing services, including GAF asphalt shingles and metal roofing. No matter your project, we ensure top-tier materials and expert installation.

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Service From a Highly Credentialed Exterior Remodeling Company

Choosing a highly credentialed exterior remodeling company means peace of mind. Thermo-Seal holds certifications from the industry’s leading manufacturers, proving our expertise and commitment to quality.

  • Andersen Certified Contractor – Premier Level
  • GAF Master Elite Contractor
  • James Hardie ALLIANCE Member
  • CertainTeed 5-Star Siding Contractor
  • Vinyl Siding Institute (VSI) Certified
  • EPA Certified
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100% Satisfaction Guaranteed

At Thermo-Seal, we make exterior remodeling simple and stress-free. From your first consultation to the final installation, we provide a seamless experience with clear communication, expert recommendations, and professional workmanship. We offer free, no-hassle estimates, helping you make informed decisions with confidence.

Every project is completed by our highly trained in-house technicians, using only top-tier, high-performance products backed by great warranties. Whether it’s a new roof, energy-efficient windows, or premium siding, we stand behind our work with a commitment to customer satisfaction that has earned us an A+ BBB rating and an Angi Super Service Award.

What to Expect
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

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