Spray Foam Insulation in Waterbury, CT

Find top-rated spray foam contractors and save up to 35% on energy bills

💰 Estimated Energy Savings in Waterbury

35%
Average Energy Savings
Typical range: 30% - 40%
$1,596
Estimated Annual Savings
Based on $380/month average energy cost
4 years
Average Payback Period
Return on investment timeline

Note: Actual savings vary based on home size, current insulation, energy rates, and climate conditions. These estimates are based on Department of Energy data for Cold.

Verified Contractors in Waterbury

Supreme

Direct: 4752502728

5
5 Google reviews

Recent Reviews:

Carlyne Hyacinthe★★★★★3 months ago

They are the best in my opinion

Carlos Hinojosa★★★★★9 months ago

Very polite & professional, highly recommended them!

Anton Zorin★★★★★10 months ago

These guys are the best! Highly recommended.

Koala Insulation of Central Connecticut

Direct: 8608159355

5
8 Google reviews

Recent Reviews:

Michael Pratt★★★★★a year ago

Koala did an excellent job with the spray in insulation in my crawl space. I met with Graema to review the project, he provided an estimate within a day or so which was the most reasonable of the three prices I received. They were available to start at my convenience within a week or two of agreeing upon the pricing. They came one day to do the removal of the old fiberglass insulation and then a day or two after that to apply the spray foam insulation. The guys were all professional, polite and left the basement and crawl space clean during and after the work was completed. I would use Koala for any future insulation projects I have and would highly recommend them!

Ann G★★★★★a month ago

From start to finish, it was a pleasure dealing with this company! I initially spoke to Graeme who was very professional, courteous, answered all of my questions and addressed any concerns. I appreciate the excellent communication regarding job scheduling, payments/receipts, and a follow-up call after the job was completed--very thorough! Steve (Estimator) quoted us for blown-in cellulose insulation and insulated covers for our recessed lights as he explained this would be the best solution to address our needs. Steve was professional, courteous, highly knowledgeable, educated us on what was going to be done, answered all of our questions and we received our estimate the next day, which was very reasonable! The crew, Tony and Chris, were professional, courteous, hard-working, answered my questions and kept me apprised of what they were doing. Tony showed me photos of the finished job and explained what they did. Tony and Chris respected my property and did an excellent job cleaning up. I highly recommend this company when it comes to insulating your home!

James★★★★★3 months ago

I’m very satisfied with the attic insulation service provided by this company! From start to finish, they were professional, efficient, and attentive to my requests. They responded promptly to all my questions and made sure every concern I had was addressed. The team worked carefully, and paid close attention to detail. I really appreciate their willingness to listen and make adjustments based on my needs. I highly recommend them to anyone looking for reliable and responsive service! - James

Northeast Spray Foam, LLC

Specialist

Direct: 8772632870

5
2 Google reviews

Recent Reviews:

Michelle Nerkowski★★★★★4 years ago

Steve and his team did a great job at a fair price

Kyle Lundquist★★★★★10 years ago

Northeast Spray Foam does a superior job - I highly recommend them!

G&G Contractor LLC

Direct: 2037706132

5
2 Google reviews

Recent Reviews:

Joseph Medina★★★★★6 years ago

Work done well, great guys and professionals

Edgar Gomez★★★★★5 years ago

SEBASTIAN SPRAY FOAM INSULATION

Specialist

Direct: 2036288545

5
1 Google reviews

Recent Reviews:

Elizeu Rodrigues★★★★★10 months ago

Black Bear Spray Foam LLC.

Specialist

Direct: 2037475157

5
5 Google reviews

Recent Reviews:

Don W.★★★★★3 months ago

Roy is a great communicator and kept me informed each step of the way. They did a great job insulating a very tight attic. We did run into a little problem and, without a question, he took care of it quickly and in a very professional manner. I would have him do work for me again.

Dan Claflin★★★★★a year ago

Highly recommend Roy and Black Bear. Roy gives you an honest assessment and offers good info on how much each inch of insulation adds to the percentage of efficiency. Good info and honest advice with no pressure at all. They showed up on time, work was very good, and I am 100% satisfied.

kevin Gollareny★★★★★6 years ago

Roy and his team did a fantastic job installing spray foam in our basement crawl space. They are very professional, prompt and left the job site spotless. We would highly recommend Black Bear Spray foam. We notice a tremendous difference already.

USA Insulation of Connecticut

Direct: 8602383626

4.9
8 Google reviews

Recent Reviews:

Nancy Parvin★★★★★a month ago

Kenny was professional and explained all the benefits and what my house needed to be more energy efficient. Joey and Chris did a great job with the insulation project were friendly and professional. Joey did a walk through before starting the job and after. They did a nice job cleaning up and I appreciated the great service. Highly recommend USA Insulation of Connecticut.

Judy Plaza★★★★★4 months ago

USA insulation did a wonderful job on my Condo with insulated of the entire unit… Dominik Doel and his coworker worked efficiently and very professionally trained in what they had to do… Most definitely will refer to my friends here in my Complex… Thank you..

Niles D★★★★★4 months ago

The whole team at USA Insulation of CT was great to work with. Karissa was diligent about keeping me aware of things via phone and text, Matt did a fantastic job of determining our insulation needs and walking us through the process, and Benny and his team (Dominick, Julio, Joey, and Darian) were extremely efficient in getting the job done properly. Seriously, I work from home and it was like they weren't there at all! They got to my place right on time, set things up, got to work, and cleaned up so well after they left the place nicer than they found it! Of course, along with fantastic customer service, the insulation has already begun to pay off. Our new home had only about 5 inches of insulation in the attic (yikes) and barely any insulation at all in most of the walls (double yikes!). How the previous owners managed to survive living like this is beyond me. We realized we needed to check our insulation more thoroughly after the ac was struggling to keep our second (and main) floor below 82 degrees. We're able to track and monitor when our ac cycles on and off. Since installing the insulation just yesterday, there's already been a noticeable dip in the amount of times the ac has had to cycle on. Even now, it's 90 degrees outside while inside it's a comfortable 72 degrees. And the last time my ac had to cycle on to keep it there was... an hour ago for about 15 minutes. That is a MASSIVE improvement. So to USA Insulation of CT, you have our sincerest thanks for making our first house feel like that much more of a properly comfy (and cool) home!

Harisi Energy LLC

Direct: 4758880080

4.8
38 Google reviews

Recent Reviews:

Maureen Raftery★★★★★a month ago

Andrew and Paula came and did a great energy inspection of our house and provided great advice to improve the house. Andrew was very professional and nice to work with.

Anna D★★★★★4 months ago

Martin and his team are professional, knowledgeable and a pleasure to work with. They went above and beyond, answered all questions we had. Honest and positive!!! We are very happy with the service we received. Thank you for everything you do!!!

ruben gabriel★★★★★a month ago

Andrew Garcia and his coworker did an amazing job with my home energy audit! They were professional, polite, and took the time to explain everything clearly. I learned a lot and really appreciated their thoroughness. Highly recommend them!

Grand Street Insulation

Direct: 8606701700

4.5
4 Google reviews

Recent Reviews:

Rich T★★★★★2 months ago

I called them and the responded with 1 day. I was looking for a fast turnaround because of some issues with my builder. They came through and gave me a fair price to do the job. The quality of the work was excellent from start to finish. My building is a 28x36 with 14’ tall walls metal building. I would highly recommend them for any project you have.

Colby Kelly★★★★★2 years ago

Vlad was very prompt, informative, knowledgeable, and professional. He provided advice and options to fit our budget. I would highly recommend his services!

Vet Bass★★★★★2 months ago

Dr. Energy Saver Connecticut

Direct: 2034463092

4.2
32 Google reviews

Recent Reviews:

Alexander Speciale★★★★★8 years ago

I just worked with Dr Energy Saver to get insulation installed in my house. I would absolutely recommend them to any friends or family. From the beginning of the process through the final inspection, this company was a pleasure to work with. I would like to especially thank Keith Saunders and Johnny Lopez. Keith was beyond helpful while simply conduction the inspection and developing a quote. He really helped get me a service that was within my budget. Come installation day, Johnny was incredibly respectful and a pleasure to work with. Johnny ensured that everything was done right and the house was spotless after. Again I will absolutely be recommending this company to my friends and family.

Amy Shane★★★★★5 years ago

I called Dr. Energy Saver because I had extensive mold in my attic. They did a fantastic job removing the mold, sealing air leaks and Re-insulating the attic.The upstairs is so much warmer now. They also did a great job insulating our rim joist in the basement, replaced the basement door and insulated a downstairs room. The crew was friendly, on time and cleaned up their area every day.

Gordon Bishop★★★★6 years ago

In Dec. 2019, I had extensive work done on my attic - air sealing, installing new insulation, a new catwalk, an insulation box over my attic ladder, improving the duct work from my bathroom fans. They did an excellent job and were pleasant to deal with. They responded promptly to my concerns subsequent to finishing the job. My only reservation was their price - $10,000 which I thought was high. but I proceeded anyway because I had confidence that they would do the job right.

U.S. Insulation Corp.

Direct: 8608298881

3.5
18 Google reviews

Recent Reviews:

jeremy claflin★★★★★2 years ago

Kevin was amazingly helpful for my insulation project. Kevin walked through the house and attic with me and spent a lot of his valuable time answering my questions. Kevin was also really knowledgeable about the Connecticut energy assistance program and was able to pay for over half of my project through the program. There was a small misunderstanding about the quote but Kevin immediately corrected it and I am 100% satisfied. The installation team also did a thorough job on the install. This was a great quality service and the company is really reputable. I would definitely work with them in the future.

Amy Antioho★★★★★a year ago

I am very impressed with my gutters from US Insulation Corp. Pat was awesome to deal with and the team made sure everything went smoothly. Pricing is more than fair; work was done efficiently and thoroughly. They made sure it was done right! Highly recommend.

Pharma PM★★★★★7 years ago

The best customer service in the State of Connecticut! Not only do they return calls the same day, but they make sure they complete their work to your satisfaction. Pat takes the time to respond to all of your questions and concerns. They get the job done right! They did an outstanding job on my gutters!

Frequently Asked Questions — Spray Foam Insulation in Waterbury

How much can spray foam insulation save on heating and cooling bills in Waterbury?
Homeowners in mixed climates like Waterbury, CT typically see 20–30% reductions in total energy costs after spray foam installation. The savings come from both reduced heating in winter and reduced cooling in summer. The exact savings depend on your home's current insulation, size, and local energy rates, but most homeowners recoup the investment within 3–6 years.
Is spray foam better than fiberglass insulation for homes in Waterbury?
For most homes in Waterbury, CT, spray foam outperforms fiberglass significantly. Fiberglass batts insulate but do not air seal — meaning conditioned air still escapes through gaps. Spray foam both insulates and creates an airtight seal, addressing the root cause of energy loss. While spray foam costs more upfront, the performance difference in mixed climates makes it the better long-term investment for most homeowners.
Is spray foam insulation worth the cost?
For most homeowners, yes. Spray foam creates an air-tight seal that traditional insulation cannot match, reducing energy bills by 15–35% annually. It also adds structural rigidity, acts as a moisture and vapor barrier, reduces outside noise, and can increase home resale value. The higher upfront cost compared to fiberglass is typically recovered within 3–7 years. One important note: because spray foam creates a very tight building envelope, proper mechanical ventilation is important to maintain healthy indoor air quality and prevent interior moisture buildup. This is typically handled by an Energy Recovery Ventilator (ERV) — a system that brings fresh outside air in while pushing stale air out, recovering the energy from the outgoing air so you don't waste what you paid to heat or cool — or a Heat Recovery Ventilator (HRV), which works similarly but is optimized for cold climates. A qualified contractor will assess whether your home needs ventilation upgrades as part of the installation.
How much does spray foam insulation cost?
Spray foam insulation typically costs $1.00–$3.00 per square foot installed, depending on the type and your location. Open-cell foam runs $0.44–$0.65 per board foot, while closed-cell foam costs $1.00–$2.00 per board foot. A typical 2,000 sq ft home attic costs $2,000–$6,000. Most homeowners recoup this investment within 3–7 years through energy savings of 15–35% annually.
What is the difference between open-cell and closed-cell spray foam?
Open-cell spray foam is softer, less dense, and less expensive. It expands significantly and is ideal for interior walls, attics, and soundproofing. Closed-cell spray foam is denser, stronger, and provides a moisture barrier — making it better for exterior applications, crawl spaces, and areas prone to flooding or humidity. Closed-cell also has a higher R-value per inch (R-6 to R-7 vs R-3.5 to R-4 for open-cell). One key difference: open-cell foam allows some vapor movement, while closed-cell acts as a vapor barrier — an important consideration for your home's ventilation needs.
How long does spray foam insulation last?
Spray foam insulation is one of the most durable insulation options available, with a lifespan of 80+ years when properly installed. Unlike fiberglass batting which can sag and settle over time, spray foam maintains its shape and insulating properties indefinitely. It will typically outlast the building it is installed in.
How do I find a qualified spray foam insulation contractor?
Look for contractors who are licensed, insured, and have verifiable reviews. Spray foam requires specialized equipment and training — improper installation can cause off-gassing, adhesion failure, or fire hazards. Ask for references, verify their insurance, and get at least 2–3 quotes. A qualified contractor will also assess your home's ventilation needs — a tightly sealed spray foam installation requires adequate mechanical ventilation to prevent moisture and indoor air quality issues. FoamMatch pre-screens all listed contractors for licensing and insurance so you can compare verified professionals in your area.
How long does spray foam installation take?
Most residential spray foam jobs take 1–2 days depending on the size of the area. A standard attic takes 4–8 hours. After spraying, the foam cures within 24 hours, though most contractors recommend waiting 24–72 hours before occupying the space due to off-gassing during the curing process.
Does spray foam insulation need to be replaced?
No — spray foam insulation does not need to be replaced under normal circumstances. Unlike fiberglass insulation which degrades over time, spray foam maintains its R-value and air sealing properties for the life of the building. The only reasons to remove or replace spray foam are water damage, renovation work, or improper original installation.