Insulation Professionals Serving Connecticut Since 1977
There’s a right way to insulate…
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!!
Why Choose %wNealonw% ?
Why the Connecticut community has trusted us for 48 years
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!!
Cozy Winters, Cool Summers - Guaranteed
Experience year-round comfort with our precision installation guarantee
Your Home Deserves The Royal Treatment
Careful, clean, and respectful - we treat every project like it's our own family's home
Natural and
Eco-Friendly Products
Our products don't emit dangerous chemicals into your home
Trusted by Your Neighbors Since 1977
Join thousands of happy Connecticut homeowners who sleep better in their cozy homes
Professional Insulation Services In Connecticut
Energy Efficiency Experts
Insulation Services for Homeowners
Premium insulation for Connecticut homes. Experience enhanced comfort and reduced energy costs with our professional home insulation services, trusted by over 3000 homeowners.
Insulation Services for Contractors
Professional insulation services for Connecticut businesses, offices, and commercial buildings. Our expert installations deliver superior energy efficiency and sound dampening for any commercial space.
Insulation Services & Solutions
Why the Connecticut community has trusted us for 48 years
Attic Insulation
Upgrading your attic insulation will ensure your home stays warm in the winter and cool in the summer. Our insulation also prevents mice from making a home in your home.
Wall Insulation
Many Connecticut homes have minimal or no wall insulation. Nealon Insulation can insulate outside walls without tearing up your home.
Floor Insulation
Proper floor insulation is essential for maintaining a comfortable home by preventing heat loss through the floors, reducing energy costs, and minimizing drafts.
Basement Insulation
Is your basement too cold in the winter? This is usually due to a lack of insulation. We can make your basement more liveable.
Crawl Space Insulation
Crawl spaces are often not insulated properly. Ensuring the crawl space is insulated helps prevent moisture and heat loss for the home
Garage Insulation
Garage insulation helps regulate temperatures, making the space more comfortable year-round while reducing energy costs.
Knee Wall Insulation
Kneewall insulation is crucial for preventing heat loss, keeping your home more energy-efficient and comfortable.
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!!
Your Path to Superior Insulation Starts Here
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.
Your expert Connecticut Residential & Commercial Insulation Service Areas
Trusted Insulation Experts Serving Clinton, Madison & Guilford Homes and Businesses Since 1977
Primary Service Areas
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
Frequently Asked Questions?
How do I know if my home needs more insulation?
You may need more insulation if your home feels drafty, rooms have uneven temperatures, or energy bills are high. Visible attic joists, cold floors, and constantly running HVAC systems are key signs. Nealon Insulation offers free assessments to identify and fix under-insulated areas.
What are the main areas in a house that should be insulated?
The most important areas to insulate in a Connecticut home are the attic, exterior walls, basement or crawl space, and rim joists. These zones prevent heat loss, control moisture, and reduce energy bills. Nealon Insulation customizes solutions to target the biggest energy leaks for maximum comfort.
How long does insulation installation take?
Most insulation jobs are completed in one day, depending on home size and insulation type. Attics take a few hours, while walls or crawl spaces may take longer if air sealing or removal is needed. Nealon Insulation provides a clear schedule and finishes with minimal disruption.
What is an R-Value?
R-Value measures how well insulation resists heat flow. Higher R-values mean better insulation performance—keeping heat in during winter and out in summer. It’s essential for energy efficiency, especially in Connecticut’s climate. Different areas of your home require different R-values based on code and comfort needs.
What R-Value is recommended for the Connecticut area?
In Connecticut, R-49 to R-60 is recommended for attics, R-13 to R-21 for walls, and R-19 to R-30 for floors or crawl spaces. These values follow Department of Energy guidelines for Zones 5 and 6. Nealon Insulation helps meet or exceed these standards for comfort and code compliance.
What insulation products does Nealon Insulation use?
Nealon Insulation uses cellulose, fiberglass, and spray foam to match different homes and budgets. Each product is selected for goals like energy efficiency, soundproofing, or eco-friendliness. With nearly 50 years of experience, Nealon recommends the best solution for long-term comfort and savings.
Can you be home when the insulation is installed?
Yes, you can stay home during insulation installation. The process is quick and minimally invasive, with equipment that controls dust and debris. Our team works efficiently and respects your space, so you can continue your day without disruption.
How do we remove insulation in an attic space?
To remove attic insulation, batt insulation is bagged, sealed, and hauled out by hand. Blown-in insulation is removed using a HEPA vacuum system, which sucks the material through a hose into sealed bags outside the home for safe disposal.
What if I don’t know what is existing in my walls, can you find out?
Yes, we would first ask when your house is built as that is a determining factor. Building codes started in 1971 in Connecticut so anything prior most times is empty unless renovated, but in between years may so we can provide you with a wall test. This is where we would remove a couple rows of siding or pieces of clapboard, drill a 2 1/8” hole to see what is inside and replace the siding. We can add here, we usually charge $150 for a wall test, which we would credit to the job if they were in need of insulation and went with us. You can also choose to get an energy audit to have a blow-door test to find out your insulation needs. This is related to the insulation rebates available and more information can be found at energizect.com.
Is there an insulation rebate available?
Yes, you can visit energizect.com for more information on the current available programs. Qualified homes can currently receive $1.70 per square foot rebate on attics, walls, garage ceilings (with room above) and rim joists, along with an $.80 per square foot rebate on basements and crawls. This rebate can vary, so check the website for the latest information.
Is there an insulation tax credit available?
Yes, you can claim a 30% tax credit for the products purchased and installed, up to a $1,200 maximum credit. See your tax preparer for details.
What other services does Nealon Insulation provide?
In addition to insulation installation, we offer a full range of services to improve your home’s comfort and efficiency. That includes insulation removal, air sealing, and duct sealing and insulation. We also install ridge vents, gable vents, soffit vents, and roof vents to improve attic ventilation. For basements and crawl spaces, we offer rim joist insulation and full crawl space encapsulation to keep out moisture, pests, and drafts. Not sure what you need? We also provide energy assessments to identify problem areas and recommend the right solution for your home.
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