North Haven's Insulation Pros — Real Results
Nealon Energy Solutions has been my go to company for my personal property energy solutions & savings and all of my residential remodeling projects. as a remodeling contractor myself, I take pride in utilizing quality trades people, using quality products that perform at the top of their game. Nealon has the depth of experience that is in my opinion unmatched in the CT business market. Clients appreciate the thorough explanations of the options available to them, the professional execution of the contracted work and the cleanliness of the project when the work is completed. GO NEALON!!
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.
Fast, efficient and great price! Didn’t even notice them insulating our attic and making a big difference already! Would highly recommend for anyone that wants to cut down on their energy bill!!


Insulation Services & Solutions
Why the Connecticut community has trusted us for 48 years
Fiberglass
Keep your home comfortable year-round while cutting energy bills. Fiberglass insulation also blocks pests, protecting your home and your family's health.
Blown-in Insulation
Lower your heating and cooling costs with eco-friendly insulation that fills every gap. Made from recycled materials for a healthier, more efficient home.
Spray Foam
Stop drafts and moisture problems for good. Creates an airtight seal that can cut energy bills, while preventing mold and pest entry.
Attic
Stop losing heat through your attic and start saving on energy bills. Proper insulation keeps you comfortable year-round while dramatically reducing heating and cooling costs.
Walls
Eliminate cold spots and drafts for consistent comfort in every room. Wall insulation reduces heating costs while keeping your home quieter and more energy efficient.
Garage
Transform your garage into usable space year-round. Insulation regulates temperature, protects stored items, and prevents cold air from entering your home.
Basement
Turn your cold, damp basement into comfortable living space. Proper insulation prevents moisture problems, blocks drafts, and makes your entire home warmer.
Crawl Space
Protect your home from the ground up. Crawl space insulation stops moisture, blocks pests, prevents frozen pipes, and significantly reduces your heating costs.
Attic Ventilation
Protect your roof and home from moisture damage and ice dams. Proper ventilation reduces cooling costs in summer and prevents costly repairs year-round.
Air Sealing
Eliminate drafts and stop wasting money on energy loss. Air sealing works hand-in-hand with insulation to maximize comfort and slash heating and cooling costs.
Insulation Removal
Start fresh with a clean, healthy attic. We safely remove old, contaminated insulation and replace it with premium materials for better air quality and performance.
Insulation Showdown:
Cellulose vs. Fiberglass vs. Spray Foam
Not sure which insulation is right for your home? We broke it down across the stuff that actually matters
Connecticut Residential & Commercial Insulation Service Areas
Trusted Insulation Experts Serving Connecticut Homes and Businesses Since 1977

Primary Service Areas
The Nealon Difference
Where Historic Charm Meets Modern Efficiency – Without Compromise

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

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.

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

Reviews from our customers over 48 years
Nealon did an outstanding job in terms of courteous services, as their team members, as well as Chris who was responsible for directing the job, were most professional!!! They cleaned up nicely, and my goods remained intact. Also and happily stated, it’s been one week since they’ve installed insulation in our home, and we notice a huge difference in the amount of energy we are using for heating…which equates to $avings!!! In short, we’d use them again, and glad we chose them for this endeavor!!!
Highly recommended. Their estimate was competitive, the work was done in a timely and clean manner, they explained what was done, and our house is warmer as we head into the winter. When we had a question, they came back out to talk with us and helped us answer our questions. I will use them again and recommend them to anyone.
They are an amazing company to do work with! Jen in the office is polite, pleasant, and very competent. The work was done well and very quickly. We had our attic and basement insulated. I would 100% recommend!
The Nealon team was professional and considerate of my property. I noticed a 200-kilo watt decrease in my electric bill along with an additional savings in oil consumption of 50 gallons. No more drafty cellars and so far, the mice have gone elsewhere.
Fast, efficient and great price! Didn’t even notice them insulating our attic and making a big difference already! Would highly recommend for anyone that wants to cut down on their energy bill!!
Nealon Energy Solutions has been my go to company for my personal property energy solutions & savings and all of my residential remodeling projects. as a remodeling contractor myself, I take pride in utilizing quality trades people, using quality products that perform at the top of their game. Nealon has the depth of experience that is in my opinion unmatched in the CT business market. Clients appreciate the thorough explanations of the options available to them, the professional execution of the contracted work and the cleanliness of the project when the work is completed. GO NEALON!!
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.
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