Spray Foam:
Insulation That Seals the Deal
Spray foam insulation seals every crack —locking in comfort, blocking out drafts, and delivering serious energy savings.
The Benefits of Spray Foam—Beyond Just Insulation
The benefits of using spray foam insulation.
Superior R-Value
Spray foam delivers one of the highest R-values per inch, giving you serious insulating power in tight spaces.
Built-In Air Sealing
Unlike other insulation types, spray foam seals cracks and gaps as it expands—locking out drafts, dust, and even pests.
Moisture Barrier
Closed-cell spray foam acts as a moisture barrier, helping to prevent mold and rot in basements, crawlspaces, and damp areas.
Energy Efficiency Hero
Because it insulates and air seals, spray foam reduces heating and cooling costs more effectively than traditional options.
Long Lifespan
Spray foam doesn’t settle, sag, or degrade over time—meaning your insulation investment keeps working for decades.
Strengthens Your Structure
Closed-cell spray foam adds rigidity to walls and roofs, which can boost your home’s structural integrity in the long haul.
Pest Deterrent
Spray foam fills every nook and cranny, leaving no cozy gaps for rodents or insects to move in—making it a powerful line of defense against unwanted houseguests.
When to Choose Spray Foam Insulation?
Here are common scenarios when spray foam is the right insulation choice for you.
Your Upstairs is Always Too Hot or Too Cold
If your second floor is always hotter in the summer and colder in the winter, your attic insulation isn’t doing its job—and your HVAC is probably paying the price.
You Just Bought an Older Home
Many Connecticut homes built before the 1990s are under-insulated or missing insulation entirely, especially in the attic—making an upgrade a smart first move.
You’re Dealing with Ice Dams Every Winter
If you see thick ridges of ice forming along your roof edge, it’s likely due to heat escaping through the attic and melting snow—better insulation can stop the heat loss and prevent ice dams from forming in the first place.
You Spot Signs of Moisture or Mold in the Attic
Condensation, musty smells, or visible mold are signs your attic may have poor air sealing or insufficient insulation, which can lead to bigger problems down the road.
You’re Planning a Renovation or HVAC Upgrade
Before investing in a new heating or cooling system, insulating the attic helps you lock in efficiency and avoid overspending on equipment that’s compensating for energy leaks.
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?
Is spray foam insulation safe?
Spray foam insulation is generally safe after curing, which takes about 24 hours. During installation, it emits chemicals that can irritate the eyes, lungs, and skin. Proper ventilation and professional handling are essential. Once cured, it becomes inert and poses minimal health risks under normal conditions.
How long does spray foam insulation last?
Spray foam insulation lasts up to 80 years when properly installed and maintained. Its durability depends on factors like climate, moisture exposure, and installation quality. Closed-cell foam tends to last longer than open-cell due to its dense structure and water resistance.
Where is spray foam insulation best used?
Spray foam insulation is best used in attics, walls, basements, and crawl spaces. It seals gaps, prevents air leakage, and improves energy efficiency. It works especially well in hard-to-reach areas where traditional insulation may fail to provide a complete barrier.
Does spray foam help with soundproofing?
Spray foam insulation helps with soundproofing by reducing airborne noise transmission. Open-cell foam is more effective than closed-cell due to its spongy texture, which absorbs sound waves. While not a full soundproofing solution, it significantly dampens noise between rooms and floors.
Can spray foam insulation get wet?
Closed-cell spray foam insulation resists water and remains effective when wet. Open-cell foam, however, absorbs moisture and can be damaged by prolonged exposure. Proper installation and moisture control are essential to prevent mold or degradation in both types.
Is spray foam better than fiberglass or cellulose?
Spray foam insulation is better than fiberglass or cellulose for energy efficiency. It expands to fill gaps, creating a tighter barrier. While more expensive, it offers higher R-values and moisture resistance, especially in closed-cell form. Fiberglass and cellulose are cheaper but less effective at sealing air. Different insulation types are better in different situations.
Can spray foam be installed over old insulation?
Spray foam can be installed over old insulation if the existing material is dry, stable, and free of mold. However, removing old insulation is recommended to ensure better adhesion, coverage, and performance. A clean surface allows the foam to bond properly and maximize efficiency.
Does spray foam insulation smell?
Spray foam insulation can emit a strong odor during installation due to chemical off-gassing. The smell typically dissipates within 24 to 72 hours after curing. Proper ventilation during and after application reduces exposure and speeds up odor removal.
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!!
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