Tri-state's Trusted Home Remodeling Experts
About Thermo-Seal Windows, Siding & Roofing, Inc.,
• Our Story & Commitment •
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.
- Decades of Proven Experience
- In-House Professionals Only
- Certified & Accredited
- Premium Materials
- Comprehensive Exterior Services
- Customer-Centric Process
- Award-Winning Reputation
1985
Year Established
2K+
satisfied customers
40+
yEARS OF eXPERIENCE
500+
Featured Projects
40+
Years of Experience
Exterior Remodel Best Products
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.
Our Mission
We offer homeowners high-quality exterior remodeling solutions—windows, siding, roofing, doors, and gutters—that ensure efficiency, durability, and aesthetic appeal, supported by reliable workmanship.
Our Vision
We see Thermo-Seal as the premier exterior remodeling company in the Tri-State area, celebrated for its exceptional craftsmanship, unwavering integrity, and the ability to transform homes that endure through time.
Highly Credentialed Remodeling Company
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
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.
• Why Choose Us •
What makes us the best choice for you!
At Thermo-Seal, our 40 years of experience, certified professionals, and premium materials ensure your home’s exterior upgrades deliver beauty, durability, and energy efficiency—all backed by trusted warranties and unmatched customer satisfaction.
Certified & Accredited
Certifications from Andersen, GAF, James Hardie, CertainTeed, and more.
Premium Materials
We use only high-performance products backed by strong warranties.
Customer-Centric Process
Free consultations, transparent proposals, and clear communication.
Ready to transform your exterior?
Contact Thermo-Seal for a free estimate to improve your home's beauty and efficiency.
Call now:
Call Now
Let’s Build Something Beautiful Together - Contact us today!
Fast Solutions
100% Customer Satisfaction
Our job is not done until you are completely satisfied with both our work and the level of service you receive. Every customer is treated like friends and family in order to make the entire renovation experience positive for our customers. We have an extensive list of satisfied customers who are happy to recommend our services.
Trust
You don’t have to worry about anything, we will take care of it all. We do not subcontract services that we offer, like many “contractors” do. There will only be our insured, well-trained team on your property.
Quality
You know what to expect. We use only the highest quality materials throughout the entire project. Many “contractors” install low grade products, especially when the project foundation can’t be seen.
Satisfaction
We don’t leave until you are completely 100% satisfied. We maintain high-quality work, which keeps overhead low to save our customers money.
Dependability
Throughout our years of service, we have consistently upheld a standard of excellence for our customers. We take pride in having an owner present at every project.
What to Expect
At Thermo-Seal Windows, Siding and Roofing, we take great pride in providing superior work and amazing customer service to all our customers in the Tri-State area. With over 40 years of combined experience, you won’t be disappointed with our products and the quality of work we deliver.
By choosing Thermo-Seal, you are getting not only the best replacement windows, siding, roofing, and home remodeling contractors, but a company with a history that stems from being the largest private brand window replacement manufacturer in the area.
Specializing in windows, siding, roofing, doors, gutters, and remodeling, Thermo-Seal stands as your trusted partner for comprehensive home enhancement and home remodeling. Our team of dedicated professionals not only ensures superior work but also provides an unparalleled level of customer service. Choose Thermo-Seal for a transformative journey towards a more beautiful and efficient home.
Who We Are
The Thermo-Seal Team
Aaron
owner
Bob
owner
Marina
c.o.o.
Member Name
Position
• Frequently Asked Questions •
Home Improvement Questions Answered by Thermo-Seal
Is there any real value to replacing my windows?
New windows not only add curb appeal to your home, increasing your home's value, but they also help with energy efficiency. With better climate control inside your home, you are able to save on your utility bills.
Do I have to take my curtains down before Thermo-Seal arrives to replace my windows?
You can leave your curtains and shades on the windows. Our experienced installers can take them down and replace them exactly as they were.
I need windows replaced, but also want to change the window style. Can you do this?
Windows from Thermo‐Seal can be designed to fit virtually any opening. Our energy efficient windows come in a variety of shapes and styles. You can explore our quality Windows to see which style you prefer.
How long does siding last?
Siding comes in a variety of materials. The type of material your siding is made of will determine the life span. We are happy to offer a free consultation, to look at your siding to offer maintenance or replacement options.
How do I choose which siding I want on my house?
Today's quality siding options are built to withstand changing weather conditions. Some materials do require more maintenance than others and some materials may last longer than others. Choosing a new siding depends on the look that you prefer such as wood or vinyl and you may also want to consider the level of maintenance that different materials require.
How long can I expect a new roof to last?
A new roof can last as long as 20 years. Weather conditions, materials and proper installation can affect this length. It is best to always make sure you are working with an insured and reliable company.
After the last rainstorm, I noticed a water stain on my ceiling. Is a leaking roof an emergency?
Water damage should be looked at right away. Any water that leaks in through a damaged roof can lead to a bigger issues such as mold, ceiling damage and destroyed insulation. It's best to have your roof inspected to determine if and where any leaks may be coming from.
I'm looking for a home improvement contractor. How do I know if you service my area?
As the largest private brand window replacement manufacturer in the area, we provide services throughout New Jersey, New York and Connecticut. If you don’t see your area listed on our Service Area page, please contact our office to discuss.
I would like to see some of the work that you have done for other customers. Is there a way that I can see the quality of work you provide?
Yes! We are happy to share photos of the work that we have provided for our happy customers. Please see our Gallery for examples.
Are you licensed and insured? Why is that important?
Insurance protects employees and you, the homeowner, should anything happen on your property. It also guarantees that you are working with a professional, highly trained company as state licensing boards require insurance in order to qualify for state licensing.
Schedule an Appointment
Contact us through our contact form and we’ll get back to you as soon as we can.
About
Affiliations & Certifications
Thermo-Seal is proud to be a member of and certified by some of the industry’s leading organizations and associations.
GAF Master Elite
Master Elite® Certification is GAF's factory certification program that provides ongoing training to roofing contractors. With only 2% of all roofing contractors qualifying as Master Elite®, customers know their roof will be completed professionally.
Certainteed 5 Star Contractor
CertainTeed is North America's leading brand of exterior and interior building products, including roofing, siding, fence, decking, railing, trim, insulation, gypsum and ceilings. To qualify as a CertainTeed 5-Star Contractor, a contractor must successfully complete continuing education and maintain a high rating with the BBB.
Andersen Premier Certified Contractor
Andersen Premier Certified Contractor are true craftsmen who are hand-picked by Andersen and receive product training and installation resources. Thermo-Seal's expertise and experience allows us to capture the vision for your home and provide the right products for your project.
Better Business Bureau (BBB)
BBB maintains Business Reviews on more than 4.5 million businesses and rates them based on complaint histories, responsiveness to customers, licensing, legal and government action, and other factors. Only Accredited Businesses that meet the BBB Code of Business Practices are permitted to display the BBB logo in their marketing and place of business.
Angie's List, Super Service Award Winner
For over two decades, Angie's List has provided trusted reviews to help millions of consumers make informed and confident hiring decisions when it comes to local service providers. Every year, Angie's List awards the top rated companies in their respective industries with the prestigious Super Service Award. Thermo-Seal is proud to be a recipient of the Angie's List Super Service Award.
James Hardie Contractor Alliance Member
The James Hardie Contractor Alliance Program is designed to match homeowners with professional contractors from around the country, who are trained and available to help you meet your needs for siding repair and replacement. In an effort to provide the highest level of service, customer satisfaction surveys are initiated on every James Hardie project installed by a Preferred Contractor using GuildQuality—a 3rd party customer satisfaction surveying service.
EPA Certified
EPA's Lead Renovation, Repair and Painting Rule (RRP Rule) requires that firms performing renovation, repair, and painting projects that disturb lead-based paint in homes, child care facilities and pre-schools built before 1978 have their firm certified by EPA (or an EPA authorized state), use certified renovators who are trained by EPA-approved training providers and follow lead-safe work practices.
Vinyl Siding Institute Certified (VSI)
The Vinyl Siding Institute, Inc. (VSI) is the trade association for manufacturers of vinyl and other polymeric siding and suppliers to the industry. Becoming VSI Certified provides a strong understanding of vinyl siding installation and industry recognized installation standards.
Product Partners:
Thermo-Seal Licenses
- WC License #18925-H07
- Yonkers License #4352
- NJ License #13vh03970200
- CT License #Hic616176
- Putnam County License #6733
- Nassau License #H0810530000
- Suffolk License #43947
- Southhampton License #L002290
- NYC DCA #13110460
- Rockland County License #H-11137-07-38
- Long Beach License #14340
• Testimonials •
What Our Customers Says
Donna C.
Client Feedback
Thank you Aaron and Bob for another excellent joy with another window project. We are equally thrilled with the workmanship of the installation and the quality of our new window as we were the last time you did a big window job for us. We appreciate your professionalism and dependability.
Leonora M.
Client Feedback
Thermo-seal windows provides outstanding customer service and has quality windows. Had most of my home windows recently replace by Aaron’s team and they were amazing. Showed up in time. There were near and clean while working and took their time in doing a great job in installing the windows.
Peter A.
Client Feedback
Very professional group. Window was installed when promised. Installers were very precise to get a square window into an uneven opening. Very meticulous. Outside trim well done. Cleaned up after job. Very happy.
