$50 OFF if Installed by June 30
Serving Clinton, Old Saybrook, Guilford, and surrounding shoreline communities

Wall Insulation Company
for Connecticut Homes

We specialize in retrofitting wall insulation without tearing your house apart

Takes 30 mins
Zero Obligation
Same Day Quote
4.8 Customer Rating
EnergizeCT Insulation Installers Network
Licensed & Insured

Wall Insulation Benefits That Go Beyond R-Value

The benefits of using cellulose insulation.

Takes 30 mins
Zero Obligation
Same Day Quote

When to Insulate Your Walls?

Here are common scenarios when you should insulate your walls.

You Live in an Older Home Built Before 1980

Many older homes in Connecticut were built without any wall insulation at all. If your walls feel cold to the touch in winter or heat up in summer, there’s a good chance they’re under-insulated—or completely empty.

You’re Renovating or Remodeling

If you’re opening up walls for a kitchen remodel or home addition, it’s the perfect time to add insulation. Retrofitting while the walls are already open saves time, money, and hassle down the road.

Your Heating and Cooling Bills Are Rising

Spiking energy bills—even if your HVAC system is newer—can be a sign your walls aren’t holding temperature well. Insulation helps lock in comfort and keep utility costs in check year-round.

You Feel Drafts or Have Uneven Room Temperatures

If some rooms are always colder than others or you feel drafts near outlets and baseboards, your wall insulation likely needs attention. Sealing and insulating can eliminate cold spots and help your whole house stay cozy.

You Want a Quieter, More Peaceful Home

Live near a busy road, train line, or noisy neighbor? Wall insulation can help reduce sound transmission and make your home quieter—especially helpful in multi-story homes or shared walls.

Your Path to Superior Insulation Starts Here

Efficiency Meets Excellence, Every Step of the Way

rapid-response
1
Get a free estimate

Building science is complicated. Our estimators don't just tell you what we'll do, they explain why we're doing it.

Schedule
2
Schedule the Work

We work with your timeline and availability. We typically schedule 2 - 4 weeks out

professional-installation
3
Insulation Begins

You will have a dedicated project lead and project manager who will walk you through every step of the process

enjoy-home
4
Enjoy your Home

Your home becomes your comfort zone, as you stop dealing with drafty rooms, inconsistent temperatures, and high energy bills.

Takes 30 mins
Zero Obligation
Same Day Quote

The Nealon Difference

Where Historic Charm Meets Modern Efficiency – Without Compromise

Home Specialists

Older Home Specialists

As EPA Lead-Safe certified contractors, we understand the unique challenges of insulating historic New England homes.

Energy Saving

Proven Energy Savings

Our customers typically see a 30% reduction in energy costs after our professional insulation services. Your investment often pays for itself through years of lower utility bills.

Assessment Process

Professional Energy Assessment Process

Every project begins with a thorough energy assessment to identify your home's specific needs.

Takes 30 mins
Zero Obligation
Same Day Quote
Difference Background

Frequently Asked Questions?

When did insulation become required in Connecticut homes?

Insulation became standard in Connecticut homes starting in the 1970s. However, homes built before 1980 often have minimal or no wall insulation, making them ideal candidates for energy retrofits to improve comfort and efficiency.

Can you insulate existing exterior walls without removing the drywall?

Yes, you can insulate existing exterior walls without removing drywall. Nealon Insulation uses dense-packed cellulose or blown-in fiberglass installed through small holes, filling wall cavities efficiently—ideal for retrofitting older homes.

How do I know if my walls are insulated or not?

You can check if your walls are insulated by looking for drafts, uneven temperatures, or by checking the home's age. Homes built before 1980 often lack wall insulation. Nealon Insulation uses thermal imaging or small inspection holes to confirm insulation presence.

What’s the best insulation for walls in Connecticut?

The best insulation for walls in Connecticut is often dense-packed cellulose. It offers strong air sealing, moisture resistance, and soundproofing. Spray foam and fiberglass are also effective, depending on your wall type and performance goals.

Will wall insulation help reduce noise inside my home?

Yes, wall insulation helps reduce noise by blocking sound transfer between rooms and from outside sources. It's especially effective in multi-story homes or properties near traffic, creating a quieter, more comfortable indoor environment.

Can you add wall insulation during a renovation or remodel?

Yes, you can add wall insulation during a renovation or remodel. Installing insulation is easier and more cost-effective when walls are open, making renovations the ideal time to upgrade energy efficiency and comfort.

How long does wall insulation take to install?

Wall insulation typically takes one to two days to install, depending on home size and whether old insulation must be removed. Nealon Insulation provides a clear schedule upfront to keep your project on track.

Is there a rebate or tax credit for insulating my walls in Connecticut?

Yes, Connecticut homeowners may qualify for rebates through Energize CT and federal tax credits for wall insulation. Nealon Insulation helps you handle the paperwork to ensure you receive every eligible incentive.

4.8/5 Customer Rating

Reviews from our customers over 48 years

Great experience! Very friendly and professional. They were on time, stuck to their quote and work timeline and have done a great job with two projects for me. I would definitely recommend.

Tom L

Ready To Start Saving?

Schedule your FREE home energy assessment today. No pressure, no obligation— just expert advice for your home's needs.

4.8 Customer Rating
EnergizeCT Insulation Installers Network
1500+ Homes Upgraded
Licensed & Insured