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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!!

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.
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Trusted Insulation Experts Serving Clinton, Old Saybrook & Guilford Homes and Businesses Since 1977
How It %bWorksb%
Simple Steps to a More Comfortable, Energy-Efficient Space
Building science is complicated. Our estimators don't just tell you what we'll do, they explain why we're doing it.
We work with your timeline and availability. We typically schedule 2 - 4 weeks out
You will have a dedicated project lead and project manager who will walk you through every step of the process
Your home becomes your comfort zone, as you stop dealing with drafty rooms, inconsistent temperatures, and high energy bills.
Frequently Asked Questions?
What insulation products do you use?
We use blown Class I Cellulose called Green Fiber Sanctuary. Cellulose insulation is an excellent choice because it is eco-friendly, made primarily from recycled paper, and treated for fire and pest resistance. It provides superior thermal performance, effectively sealing gaps and reducing air infiltration for better energy efficiency. Its dense composition also enhances soundproofing, creating a quieter and more comfortable home. Plus, it’s a sustainable option that reduces environmental impact while delivering long-lasting insulation benefits.
What R-Value is recommended for the Connecticut area?
In the Attic, at least an R-49, exterior walls R-15 and basements and crawl spaces R-21
What is an R-Value?
The amount of insulation installed is specified by an R-Value. This is a measure of the ability for the insulation to resist heat traveling through it. The “R” stands for resistance to heat flow. The higher the R-Value the better the thermal performance. Different climates and locations can require different R-Values.
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