Upgrade Your Attic Insulation,
Upgrade Your Comfort
we help homeowners across Connecticut upgrade their attics the right way—with the right materials.
The Benefits of Attic Insulation— Beyond Insulation
The benefits of insulating (or re-insulating) your attic.
Improved Comfort Year-Round
No more freezing bedrooms in the winter or sweltering upstairs in the summer—insulation evens out your home's temperature.
Lower Energy Bills
Insulating your attic keeps heated and cooled air where it belongs—inside—so your HVAC system doesn’t have to work overtime.
Keeps Mice & Pests Out
Sealing and insulating your attic helps block the small gaps and entry points that rodents and insects love to use, making your home a lot less inviting to unwanted guests.
Longer HVAC Lifespan
With less strain on your heating and cooling systems, insulation helps reduce wear and tear—saving you from premature repairs or replacements.
Better Indoor Air Quality
Sealing and insulating the attic helps block dust, allergens, and outdoor pollutants from circulating into your living space.
Prevention of Ice Dams
Insulation reduces heat loss through the roof, helping prevent dangerous and damaging ice dams in Connecticut’s cold winters.
Lower Carbon Footprint
Good attic insulation reduces the amount of energy your home needs to stay comfortable, which means fewer fossil fuels burned to power your HVAC—and a smaller carbon footprint for your home.
When to Insulate Your Attic?
Here are common scenarios when you should insulate your attic.
Finishing or Remodeling Your Basement
If you're turning your basement into livable space, proper insulation is essential for comfort, moisture control, and energy savings.
Dealing with Cold Floors Upstairs
Cold floors on the first level often mean your basement or crawl space is uninsulated—adding insulation can fix that fast.
Battling Moisture, Mold, or Musty Smells
Basement insulation helps block humid air and condensation, reducing the risk of mold growth and that classic musty basement odor.
Heating and Cooling Bills are Too High
Insulating below-grade spaces prevents energy loss and keeps your HVAC system from working overtime—especially in Connecticut’s extreme seasons.
You're Seeing Signs of Pests and Rodents
Sealing and insulating rim joists and walls creates a tighter barrier against rodents, insects, and critters looking for a way into your home.
Your Path to Superior Insulation Starts Here
Efficiency Meets Excellence, Every Step of the Way
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.
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.
Frequently Asked Questions?
Do I really need attic insulation?
Yes, attic insulation is essential for reducing energy bills and maintaining consistent indoor temperatures. It keeps heated or cooled air inside your home and prevents your HVAC system from overworking, especially in extreme weather.
How do I know if my attic insulation is bad?
You can tell your attic insulation is bad if rooms feel drafty, temperatures vary, or winter ice dams form. High energy bills and visible joists are also signs. In Connecticut, less than 16 inches of fiberglass or 14 inches of cellulose means you’re below the R-49 standard.
What type of insulation is best for attics?
The best attic insulation depends on your home's needs and budget. Dense-packed cellulose is ideal for sealing gaps and resisting pests. Fiberglass is cost-effective with good air sealing, while spray foam offers maximum air sealing for complex layouts. An expert inspection ensures the best fit.
How much attic insulation do I need?
In Connecticut, you need attic insulation rated at least R-49, which typically requires 14 to 18 inches of blown-in cellulose. Proper insulation levels are based on measured needs, not guesses, to ensure maximum energy performance.
Can I just add more insulation on top of the old insulation?
You can add new insulation over old insulation if the existing layer is dry, clean, and free of mold. If it shows signs of moisture, pests, or odors, it should be removed before installing new insulation to avoid trapping problems underneath
Will attic insulation help in the summer, too?
Attic insulation helps in the summer by keeping heat out and reducing the strain on your air conditioner. A well-insulated attic blocks external heat, keeping your home cooler and improving energy efficiency.
Is installing new attic insulation messy or disruptive?
Installing new attic insulation is not messy or disruptive when done professionally. Our team uses clean equipment, prepares thoroughly, and completes most jobs in one day. Homeowners notice improved comfort without the mess or hassle. Our crew treats your house like it’s their own.
How much does attic insulation cost?
Attic insulation typically costs between $1,500 and $4,000. The final price depends on the attic’s size, condition, and insulation type. Most homeowners recoup the cost within a few years through energy savings. For a quick estimate, use our insulation pricing calculator.
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!!
Ready To Start Saving?
Schedule your FREE home energy assessment today. No pressure, no obligation— just expert advice for your home's needs.