Haddam's Insulation Pros — Real Results


Why Connecticut homes need a different approach
Haddam homes often sit in wooded, hilly, or Connecticut River-adjacent settings, where moisture and drafts show up in basements, crawlspaces, and older attics. Many homes have additions from different eras, so insulation needs to connect the whole building envelope.
1977
65+
$10K

Insulation Services & Solutions
Why the Connecticut community has trusted us for 48 years
Cellulose Insulation
Fiberglass Insulation
Spray Foam Insulation
Mineral Wool Insulation
Batt Insulation
Rigid Foam Board
Blown-in Insulation
Attic Insulation
Basement Insulation
Garage Insulation
Ceiling Insulation
Wall Insulation
Crawl Space Insulation
Crawl Space Encapsulation
Insulation Removal
Mold Prevention & Treatment
Air & Vapor Barriers
Pest & Rodent Barriers
Air Sealing
Attic Ventilation
Connecticut Residential & Commercial Insulation Service Areas
Trusted Insulation Experts Serving Connecticut Homes and Businesses Since 1977

We serve Connecticut and surrounding communities
Frequently Asked Questions?
Why do Haddam homes need insulation that handles moisture and drafts together?
Many Haddam properties sit near wooded, hilly, or river-influenced areas where damp basements and leaky attics compound each other. Addressing only one problem leaves the other in place.
What insulation issues are common in Haddam homes with additions?
Additions have different insulation levels, rooflines, and air barriers than the original house. These mismatches create cold rooms and uneven temperatures throughout the home.
Do Haddam homes near the Connecticut River need basement insulation?
Yes. Rim-joist sealing and basement moisture control make a significant difference in comfort, especially on the first floor. These are high-priority areas in river-adjacent homes.
Can older Haddam homes be insulated without over-tightening them?
Yes. The key is controlled air sealing, proper ventilation, and insulation that matches the home's framing and moisture conditions. Over-tightening is a risk only when ventilation is ignored.
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
100 year old house. Small attic with R9-11in existing insulation. Very nice crew from Nealon Insulation led by the Foreman Christopher, Jaden, Jeremy, and Adnois. They worked very hard in cramped hot space and completed the work per contract signed bringing insulation to R49. Polite group a pleasure to work with. I would recommend this company.
"They did great work they were in and out in no time and they cleaned up afterwards very happy with them"
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!!
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.
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!!
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