J.C. Tonnotti

We specialize in energy-efficient window installations, including double-hung, casement, and bay windows. Our solutions enhance insulation, reduce noise, and improve curb appeal while using durable materials. With precise measurements and expert fitting, we ensure optimal performance and aesthetics for every home in Connecticut.

Our roofing services include replacements and installations using premium materials from GAF and CertainTeed. We focus on durability and weather resistance, ensuring long-lasting protection for your home. Our team prioritizes proper ventilation and flashing to prevent leaks and extend roof lifespan in Connecticuts climate.

We install vinyl, fiber cement, and insulated siding that enhances energy efficiency and exterior durability. Our precise installations protect against harsh weather while boosting curb appeal. We offer customizable options to match your homes architectural style and personal preferences.

We provide high-quality entry, patio, and storm door installations that improve security and energy efficiency. Our selection includes fiberglass, steel, and wood options with customizable finishes. We ensure proper sealing and weatherstripping to maximize insulation and durability.

We design and build custom sunrooms and patio enclosures tailored to your lifestyle. Our structures combine functionality with aesthetic appeal, using durable materials that withstand New England weather. These additions expand living space while enhancing natural light and home value.

With over 40 years in the industry, Joe leads J.C. Tonnotti Window Company with a commitment to quality craftsmanship and customer satisfaction. His hands-on approach ensures every project meets rigorous standards.

Leann oversees operations at J.C. Tonnotti, leveraging decades of experience to maintain the companys reputation for excellence in exterior remodeling and client relations.

We specialize in windows, doors, roofing, siding, sunrooms, and exterior painting for Connecticut homeowners.

Most window and roof replacements are finished in a single day with minimal disruption.

Yes, we offer 0% financing to qualified customers for home improvement projects.

We serve Southington and surrounding Central Connecticut communities within a 45-minute radius.

All projects are completed by our full-time, in-house crews for consistent quality.

We provide manufacturer warranties and our own service guarantees on installations.

It was great working with JC Tonnotti's! They gave me great choices and designed the picture window I wanted. The office was always responsive to my questions and the installers, Chris and Mauricio, were pleasant, efficient, and they cleaned up everything! Service: Window installation

We had a front screen door as well as a smaller kitchen and large living room and kitchen window installed in January 2022. The installers were here for 6 hrs and everything was done efficiently and professionally. You wouldn't know they had even been here! Cleaned up nicely when they were done. Joe came to see us before the work was done and went over everything. We have already noticed how much warmer our home is.on top of how wonderful the windows and door look. Would highly recommend them for your home improvement needs. Thank you!

My three-star review is not as much about the work that JC Tonnotti did as the poor quality of the Harvey windows they recommended and installed. We ordered the windows last year from JC Tonotti, and I have to say they did an excellent job on the installation. They were very professional throughout and left the house spotless, and the install looked good. There were some issues with the staining on the trim which they stood behind and resolved. However, the Harvey Majesty windows we got are surprisingly poor quality.

They're all drafty. Right now I'm standing near one and I can actually feel cold air seeping through the frame. It's 15 degrees outside, no wind, and the temperature in the house went down 4 degrees in an hour. The vinyl ones we had to put in the bathrooms are even worse. I asked them to put plenty of insulation around them so I have to believe it's the windows themselves that are the problem. I'm not sure what can be done about this at this point, but I'm just writing this to warn other about Harvey windows - never again.

J C Tonnotti replaced all the windows in my house. From the initial meeting to the installation of the windows, it was clear that this is a reputable, professional company focused on the client. Chris and his crew clearly were expert installers but were also very respectful. Although it was a cold day in February, they worked quickly and efficiently to avoid excess heat loss! When they left the house, each room was as clean as when they entered. Beautiful windows, excellent company.

Tonnotti Window Co. recently replaced my Fixed French Exterior door with a Harvey Sliding Door. I am very satisfied with the quality of the door and the expert workmanship of the installation. I found them to be a great contractor and would definately use them in the future. Service: General door installation