Expert Fiberglass Insulation for Homes in Connecticut
Fiberglass delivers reliable, cost-effective comfort—great for homeowners who want proven performance and year-round energy savings without overcomplicating things.
Fiberglass Insulation is a Solid Choice
The benefits of using fiberglass insulation.
Cost
Fiberglass is one of the most affordable insulation options out there. Solid performance, easy on the wallet.
R Value
Fiberglass holds its R-value well when installed properly—meaning your home stays warm in winter and cool in summer without working overtime.
Moisture Resistant
Fiberglass itself doesn’t absorb moisture, but if it gets wet or is installed with an incorrect vapor barrier, it can trap moisture and cause problems. That’s why proper installation and air sealing are just as important as the material you choose.
Non-Combustible
Fiberglass doesn’t burn. No treatments, no additives—it’s naturally fire-resistant, which makes it a safe bet for your home.
Sound Dampening
It won’t turn your house into a recording studio, but fiberglass does a nice job knocking down sound between rooms and floors.
Versatile
Batts, rolls, blown-in—you’ve got options. Fiberglass works in attics, basements, walls, and tight spots without making life complicated.
Low Maintenance
Once it’s in, it’s in. Fiberglass stays put, resists settling, and doesn’t attract pests to party in your walls.
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.
When to Choose Fiberglass Insulation?
Here are common scenarios when fiberglass is the right insulation choice for you.
You’ve Got a Big Attic and a Budget to Watch
Need to cover a lot of square footage without breaking the bank? Fiberglass batts or blown-in options give you solid R-value at one of the best price points per square foot. Perfect for attics, basements, and bonus rooms that need a fast, effective solution.
.webp)
You're Renovating or Building New
If the walls are already open, fiberglass slips right in—quick, clean, and cost-efficient. It’s a go-to for builders and remodelers who want reliable performance without the mess.
You Want Fire Resistance Without Extra Chemicals
Fiberglass is naturally non-combustible. No need for added fire retardants—just solid peace of mind baked right in.
You’ve Got Moisture-Prone Areas
Basements, crawlspaces, garages—fiberglass holds up well in areas where humidity can be an issue. It doesn’t absorb water, which helps prevent mold and mildew from making themselves at home.
You’re Just Looking to Knock Down the Noise
Got thin walls or loud teenagers? Fiberglass adds a layer of soundproofing that can make your evenings a little quieter—without the need for specialized (and pricey) acoustic setups.
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 fiberglass insulation safe?
Fiberglass insulation is generally safe when properly installed and handled with care. It can cause skin, eye, and respiratory irritation during installation due to its tiny glass fibers. Use gloves, masks, and protective clothing to reduce exposure. Once sealed behind walls, it poses minimal health risk.
How long does fiberglass insulation last?
Fiberglass insulation lasts up to 80 to 100 years under ideal conditions. Its effectiveness can decline after 15 to 20 years due to moisture, settling, or physical damage. Regular inspections help determine when replacement is necessary to maintain energy efficiency.
Where is fiberglass insulation best used?
Fiberglass insulation is best used in walls, attics, basements, and ceilings. It works well in unfinished spaces and between studs, joists, and beams. Its thermal resistance helps reduce heat transfer, making it ideal for controlling temperature and improving energy efficiency in residential and commercial buildings.
Does fiberglass help with soundproofing?
Fiberglass insulation helps with soundproofing by absorbing sound waves and reducing noise transmission. It is commonly used in walls, ceilings, and floors to minimize airborne sound. While it does not block noise entirely, it significantly dampens sound and improves acoustic performance in buildings.
Can fiberglass insulation get wet?
Fiberglass insulation can get wet, but it loses effectiveness when saturated. Wet insulation traps moisture, leading to mold growth and reduced thermal performance. If it dries completely and remains undamaged, it can still be used. Prolonged moisture exposure often requires replacement to maintain insulation quality.
Is fiberglass better than cellulose or spray foam?
Fiberglass is cheaper and easier to install than cellulose or spray foam, but offers lower R-values and air sealing. Cellulose provides better thermal performance and eco-friendliness. Spray foam delivers the highest R-values and air barrier properties. The best choice depends on budget, performance goals, and moisture control needs.
Can you install fiberglass insulation over old insulation?
You can install fiberglass insulation over old insulation if the existing material is dry, free of mold, and not compressed. Avoid using insulation with a vapor barrier on top of old insulation, as it can trap moisture. Always check for structural damage or pest issues before adding layers.
Does fiberglass insulation itch?
Fiberglass insulation can cause itching due to tiny glass fibers that irritate the skin. Direct contact often leads to discomfort, especially during installation. Wearing gloves, long sleeves, and protective gear reduces exposure and prevents irritation from handling fiberglass materials.
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!!
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.
Ready To Start Saving?
Schedule your FREE home energy assessment today. No pressure, no obligation— just expert advice for your home's needs.