Business Details
47 Years
experience
Your Trusted Partner for Exterior Remodeling in Connecticut
J C Tonnotti Window has been Connecticut's trusted expert in exterior remodeling for over 40 years. Founded in 1979, our family-owned business specializes in windows, doors, roofing, siding, and complete exterior solutions. With in-house crews and premium materials, we deliver stress-free installations backed by strong warranties and exceptional service. Our commitment to craftsmanship ensures every project enhances home comfort, style, and value. We pride ourselves on personalized solutions tailored to each homeowner's needs.Operating from the same Southington location for decades, we stand behind our work with accountability and local expertise. Our one-day installations minimize disruption while ensuring long-term durability. From energy-efficient replacements to custom sunrooms, we handle every detail under one roof. With GAF-certified roofing and partnerships with brands like Harvey and Therma-Tru, we combine quality products with expert execution. Homeowners choose us for our reliability, transparency, and dedication to exceeding expectations.
Services
Windows
Doors
Siding
Roofing
Sun Rooms
Patio Rooms
Painting
Exterior Repair
Details
- Year established: 1979
Highlights and features
- We employ full-time, in-house crews for consistent quality and accountability.
- We offer complete exterior remodeling under one roof, eliminating the need for multiple contractors.
- With over 40 years of local, family-owned experience, we provide unmatched reliability.
- Our efficient installations often complete projects in just one day with strong warranties.
- We use premium materials from trusted brands like Harvey and Therma-Tru for lasting results.
Associations and certifications
- GAF
What people say
Exceptional craftsmanship
Professional installations
Reliable service
Energy-efficient solutions
Timely completion
Services
Windows
We install energy-efficient replacement windows including double-hung, casement, and bay styles. Our Harvey-branded products feature Low-E glass, argon fills, and durable frames for Northeast winters. Custom measurements ensure precise fits while in-house crews guarantee seamless installations. Windows enhance home insulation, reduce noise, and boost curb appeal with lifetime warranties.
Roofing
GAF-certified roofing services include shingle replacements and installations using premium materials like Timberline UHDZ. Our crews ensure proper ventilation, flashing, and underlayment for long-term protection against weather. We offer lifetime warranties on materials and workmanship, with one-day installations minimizing home exposure to elements.
Siding
We provide vinyl and fiber cement siding solutions that improve energy efficiency and durability. Insulated options reduce heat loss while resisting fading and moisture damage. Our team handles full replacements and repairs with color-matched finishes, ensuring seamless integration with existing architecture and lifetime product guarantees.
Doors
Therma-Tru entry doors and Harvey storm doors combine security, insulation, and style. We install fiberglass, steel, and wood options with customizable finishes and energy-efficient glass packages. Our process includes proper sill pan installation and weatherstripping to eliminate drafts and meet local building codes.
Sun Rooms
Custom sunrooms and patio enclosures extend living spaces with year-round usability. We design energy-efficient structures with insulated glass roofs and thermally broken frames. Installations include proper foundations, HVAC integration, and seamless transitions to existing home exteriors for cohesive aesthetics.
People
Joe Tonnotti
Owner
Joe Tonnotti leads with over 40 years of hands-on experience in exterior remodeling. He oversees project execution while maintaining the family-owned business's commitment to quality craftsmanship since 1979.
Leann Tonnotti
Owner
Leann Tonnotti co-leads the family business, focusing on customer relations and operational excellence. Her dedication ensures homeowners receive personalized service throughout every project phase.
Questions
What exterior remodeling services do you offer?
We specialize in windows, doors, roofing, siding, sunrooms, and exterior painting with premium materials from trusted brands.
Do you provide financing options?
Yes, we offer 0% financing available for qualified customers to make home improvements more accessible.
How long do window or roof installations take?
Most window and roof replacements complete in one day with minimal disruption to homeowners.
Are your installers employees or subcontractors?
We use full-time, in-house crews exclusively to ensure consistent quality and accountability.
What areas do you service?
We serve Southington, Hartford, New Haven, Waterbury, and surrounding Connecticut communities within a 45-minute radius.
Do you offer warranties?
All projects include manufacturer warranties plus our own service guarantees for workmanship.
Videos
Reviews (3)
Susan Olmstead Palaia
Mar 23, 2018
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We had Joe Tonnotti come to our house as we were selecting a company to sell and install new windows. His price was excellent, he was very informative with everything we asked. Our windows were installed as expected within 6 weeks and they are absolutely gorgeous! The crew that was here were amazing, moved right along, so polite not only to us but to each other and that sure impressed us. One little issue with a bathroom window that opened very hard, Tonnotti sent Dave up to fix it and took him no time at all. You certainly can't go wrong for your money, they are the best. I certainly would recommend JC Tonnetti to everyone. Thanks for the great service and great price.!
Holly M. Schmeer
Jan 08, 2018
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I had all the windows in my home replaced with J.C. Tonnotti Co and was very pleased with the service. Joe, Kate and the entire staff was a delight to do business with and would highly recommend them!
Dana Jensen
Dec 15, 2017
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We could not be happier with the service and products from J.C. Tonnotti's. Joe was extremely knowledgeable and nice when he came to our house to give us an estimate. His staff went above and beyond on the day of installation. Unfortunately, we bought the wrong screen door for them to install. Instead of telling us to go get a new one or saying they would have to come back another time they actually took my husband to Home Depot and helped to be sure we got what we needed. Thank you so much J C Tonnotti. We would recommend you without hesitation!
