Business Details
47 Years
experience
Your Trusted Partner for Connecticut Exterior Remodeling
J C Tonnotti Window has been a trusted name in exterior home remodeling for over 40 years. Founded in 1979 and based in Southington, Connecticut, we specialize in windows, doors, roofing, siding, and sunrooms. Our in-house crews ensure consistent quality and accountability, delivering energy-efficient solutions tailored to Connecticut's climate. With manufacturer warranties and a commitment to one-day installations, we prioritize customer satisfaction through superior craftsmanship and personalized service. As a family-owned business, we combine decades of expertise with a dedication to innovation, serving homeowners across Central Connecticut with reliable, long-lasting results. 
Services
Windows
Doors
Siding
Roofing
Sunrooms
Painting
Details
- Year established: 1979
Highlights and features
- We offer 40+ years of local, family-owned expertise in Connecticut exterior remodeling
- Our in-house crews ensure consistent quality and direct accountability
- Complete one-stop solutions from windows to roofing under one roof
- Fast, professional installations often completed in just one day
- Backed by manufacturer warranties and our own service guarantees
Associations and certifications
- GAF Certified
What people say
Superior craftsmanship
Outstanding customer service
Trusted name in Connecticut
Energy-efficient solutions
Seamless experience
Services
Window Installation
We specialize in premium window installations featuring energy-efficient designs and durable materials. Our expert team handles double hung, casement, bay, and specialty windows, ensuring proper sealing and insulation for maximum efficiency. Backed by manufacturer warranties and our own service guarantees, our installations enhance home comfort while reducing energy costs.
Roofing Services
Our roofing solutions use top-quality materials from trusted brands like GAF and CertainTeed. We provide complete roof replacements with proper ventilation and waterproofing systems to protect against Connecticut's weather. Professional installations come with comprehensive warranties, ensuring long-term protection and increased home value through improved curb appeal.
Siding Installation
We offer premium vinyl and fiber cement siding solutions that enhance home aesthetics while providing weather protection. Our installations include proper insulation options to improve energy efficiency and reduce maintenance needs. With multiple color and texture choices, we help homeowners achieve durable, visually appealing exteriors that maintain value over time.
Door Replacement
We install Therma-Tru entry doors and Harvey storm doors that combine security with energy efficiency. Our selection includes fiberglass, steel, and wood-grain options with customizable features like glass inserts and decorative hardware. Professional installations ensure proper sealing against weather elements while enhancing home security and curb appeal.
Sunroom Additions
Our custom sunroom and patio enclosures extend living spaces while maintaining energy efficiency. We design both four-season rooms and seasonal patio enclosures with durable materials that withstand Connecticut's climate. These additions feature proper insulation and weatherproofing to create comfortable, functional spaces for year-round enjoyment.
People
Joe Tonnotti
Owner
With over 40 years in the industry, Joe leads our family-owned business with a commitment to quality craftsmanship and customer satisfaction.
Leann Tonnotti
Co-Owner
Leann ensures our operations maintain the high standards established when we founded the company in 1979, focusing on personalized customer service.
Mack
Project Manager
Mack oversees daily operations and project coordination, bringing decades of experience in exterior remodeling project management to every installation.
Mike
Lead Installer
Mike leads our installation teams with technical expertise in proper window and door fitting techniques that maximize energy efficiency.
Guilmo
Senior Technician
Guilmo specializes in complex installations and quality control, ensuring every project meets our strict standards for durability and performance.
Questions
What exterior remodeling services do you offer?
We provide comprehensive exterior remodeling including windows, doors, roofing, siding, sunrooms, and exterior painting with premium materials.
How long does a typical installation take?
Most window and roofing projects complete in one day, with larger remodeling jobs scheduled efficiently to minimize disruption to homeowners.
Do you offer warranties on your work?
Yes, we provide manufacturer warranties on materials plus our own service guarantees for professional installation quality.
Are financing options available?
We offer 0% financing options to make home improvements more accessible while maintaining our high-quality standards.
Do you serve areas outside Southington?
We proudly serve all of Central Connecticut including Hartford, New Haven, Waterbury and surrounding communities within a 45-minute radius.
Why choose your company over competitors?
As Connecticut's longest-standing family business, we combine in-house expertise, quality materials, and personalized service with 40+ years of proven results.
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