High-Performance Insulation for Homes & Buildings in Connecticut

Custom insulation solutions designed to improve comfort, efficiency, and energy savings.

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New England Performance Insulation (NEPI) is a Milford-based insulation contractor serving Fairfield and New Haven Counties. We specialize in high-efficiency solutions for homeowners, builders, and commercial contractors — from spray foam and fiberglass to fireproofing and crawlspace encapsulation. Whether you're retrofitting a finished home or insulating new construction, our team delivers expert guidance, top-tier materials, and customized service that ensures energy savings, comfort, and lasting results.

With a focus on education and clear communication, we help clients make informed decisions that align with their goals and budgets. Our crews are highly trained, fully licensed, and committed to doing the job right the first time — using industry-best equipment and building science principles. At NEPI, we don’t believe in one-size-fits-all. Every project starts with a conversation and ends with a tailored solution built to perform in Connecticut’s climate.

Driven by Experience & Service

We don't just insulate-we explain, we recommend, and deliver what works best for your space.

Vernon Cox

Co-Owner

"Vernon and team were responsive, professional and knowledgeable. They exhibit such patience to answer all my questions and address all my concerns. Vernon is a true professional, very knowledgeable and a man of his words."
Tina Lungarini

Ryan Muir

Client Success Manager

Custom Insulation for Residential & Commercial Projects

Whether you're a homeowner, builder or contractor NEPI provides the right materials, methods, and guidance for maximum performance and value.

Why Insulate?

Comfort You Can Feel. Savings You Can Count

Comfort and efficiency begin behind your walls. Whether it’s a home or commercial property, proper insulation plays a key role in maintaining temperature, cutting energy use, and improving air quality. NEPI installs high-performance insulation—spray foam, fiberglass, and cellulose—to keep conditioned air inside and costs down.

Better insulation means year-round comfort, lower utility bills, less strain on your HVAC system, and lasting savings. From retrofits to new builds, our team delivers expert, customized solutions built to perform.

Insulation Expertise for Every Space

NEPIs full-service insulation lineup improves energy efficiency, comfort, and code compliance across homes and commercial properties.

Custom Insulation Backed by Expertise 

We guide you to the best solution with clear options, honest recommendations, and proven results. 

At NEPI, every project starts with listening. We take the time to understand your property, explain your options, and recommend the best insulation approach for lasting comfort and performance. Whether you're insulating a finished home, a new build, or a commercial facility, our goal is to deliver what works — not just what’s standard.

Maximize Savings with Energize CT 

Through the Energize CT program, New England Performance Insulation helps homeowners access generous rebates—up to $1.70 per square foot and as much as $10,000 in total savings—for qualifying insulation upgrades. We also guide you through 0% interest financing options, including the Smart-E Loan and microloans. As a participating contractor, New England Performance Insulation makes the process simple and ensures your project meets all program requirements for maximum return.

Our Work 

Explore our gallery of residential and commercial insulation projects from energy-efficient retrofits to large-scale fireproofing installs across Fairfield and New Haven counties.

What Our Customers Say About Us 

We Are in Your Neighborhood

Proudly Serving All of Connecticut

New England Performance Insulation provides expert insulation services throughout Connecticut, with a focus on Fairfield and New Haven counties. Our primary service area stretches from Milford to Greenwich, including towns like Stamford, Norwalk, and Westport, as well as up the coast to Old Lyme. Whether you’re a homeowner, builder, or commercial contractor, NEPI is your local partner for energy-efficient, code-compliant insulation solutions.

Insulate Now, Pay Later

Finance Your Home Insulation Upgrade with Fast, Affordable Options

Whether you're upgrading attic insulation or retrofitting your entire home, NEPI’s  financing lets you spread out costs over time. Enjoy transparent terms, no hidden fees, and quick access to funds for your insulation project. Contact us for more information.

Frequently Asked Questions 

Comfort All Year. Savings Every Month. 

Quality Insulation Pays You Back With Lower Energy Bills

Whether you're upgrading a home or insulating a new building, New England Performance Insulation’s high-performance solutions deliver long-term energy savings, comfort, and value. We offer free estimates and inspections, and guide you through your options with clear, honest recommendations — so you get the best solution for your goals and budget. Check out our resources to learn more: