Spray Foam Insulation in Norwalk, CT

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

Compare 10 verified spray foam insulation contractors serving Norwalk, Connecticut, backed by 258 customer reviews averaging 4.5★. Whether you're insulating a new build, retrofitting an existing home, or upgrading attic and crawl-space insulation, these pre-screened Norwalk contractors handle both open-cell and closed-cell spray foam. Homeowners here typically cut energy bills by around 35% — get free quotes and read verified reviews below.

💰 Spray Foam Savings Calculator for Norwalk

Homes in Norwalk typically cut energy use by 30%–40% with spray foam. Change the numbers below to fit your home.

Foam type
$1,596
Estimated annual savings
At about 35% off your energy bill
$5,100–$8,200
Rough install cost
Attic roofline, about 5.5" of open cell
3–5 years
Estimated payback
Install cost ÷ annual savings

These are estimates, not quotes. Actual savings vary based on home size, current insulation, energy rates, and climate conditions. Savings estimates are based on Department of Energy data for the Cold climate zone. Cost assumes the attic roofline (about 1.15× your home's square footage) at typical installed prices of $0.40–$0.65 per board foot for open cell and $1.00–$1.50 for closed cell; a two-story home has less roof and usually costs less. Get quotes from the contractors below for real prices.

Verified Contractors in Norwalk

Cloud9 Spray Foam

⭐Specialist

Direct: (203) 202-1000

5⭐
28 Google reviews

Recent Reviews:

Dylan Falvey★★★★★a month ago

The cloud 9 crew did a fantastic job with our attic insulation. The attention to detail and end result is magnificent.

Nicole Fealey★★★★★5 months ago

Andrey and his team were punctual, efficient and worked diligently to complete the removal of old fiber glass and installation of spray foam into our attic. He answered all my questions and was so helpful from the first consult to timely completion of the job. My house was left pristine and his communication from start to finish was superior. Would definitely recommend them to anyone looking to make their house more energy efficient.

Hami Group★★★★★7 months ago

We are local real estate investor team with multiple project … Audrey and his team at Cloud Nine Insulation were fantastic. Audrey was extremely knowledgeable and knew exactly what was needed to pass inspection on multiple projects. His pricing was very reasonable, and his crew was professional, efficient, and left the job sites spotless—ready for the sheetrock teams. I’ll definitely be using his services again! Highly recommend

5⭐
8 Google reviews

Recent Reviews:

Deborah Korian★★★★★3 months ago

Outstanding service and results! We recently had Elite Foam Insulation complete a project in our home and couldn’t be happier. Rosemary was incredible—her responsiveness and seamless coordination made the whole process stress-free, even with many moving parts in both our schedules. The crew was professional, respectful of our home, and thorough with cleanup. The workmanship looks excellent, and we’re already noticing a big difference. Our main goal was to keep the house cooler during the hot summer months, and we’re already seeing efficiency gains that will also help our HVAC system long-term. One tip for future customers: since there can be a noticeable odor right after spraying, the project is best suited for fall/or cooler months, when you can open all windows for ventilation. Overall, Elite Foam Insulation exceeded expectations, and I’d confidently recommend them to anyone considering this upgrade.

JaKeith Jackson★★★★★5 months ago

Elite lives up to their name. The owner Troy is honest fast and reliable. From the moment I spoke with Troy, I knew that I had the guy for the job. In less than 72 hours I had a beautiful new roof. Right after I had the house powerwashed and the washer dislodged something. Troy came out personally the next day and repaired it at no extra cost. Great guy! Highly recommend.

Sarah Bergin★★★★★4 months ago

I can't say enough wonderful things about Troy and his team. Troy is extremely responsive and willing to answer any questions you might have. His quote was by far the most detailed we received, and included all of the necessary components with no hidden charges. He completed the job quickly and beautifully! I HIGHLY recommend Troy and his team to anyone looking for a new roof!

5⭐
25 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.

5⭐
42 Google reviews

Recent Reviews:

Gian Angiolillo★★★★★2 months ago

Mike and team are great. Very knowledgeable, never pushed things he didn't think were needed. He did the work timely and went out of the way to ensure the work was done well. When I made a mistake setting up home energy assessment he helped out when he didn't have to.

Anthony “Fresh cheese” L★★★★★a month ago

Guys were great. Mike the owner is the most understanding, knowledgable person I've met through the entire insulation process. He looked at the job and went above ve and beyond. I have a sunroom with a 12" crawlspace that needed insulating. No one would touch it until I found these guys. They also did my garage and utility room. Absolutely wonderful job. He honored rebates, and did what he could to keep the price down. After all said and done 5 stars. Would highly recommend. Responsive and professional

Giuseppe Fontana★★★★★a year ago

I requested quotes from 2 companies for removing old insulation, sealing up cracks for energy efficiency and to blow in new insulation in my attic. I ultimately went with The Home Energy Pros. Not only were they way less expensive, but they didn’t try to sell me on stuff I ultimately didn’t even request. Michael from the team told me exactly how the job was going to be done and just got the job done. The team cleaned up after themselves which was greatly appreciated. When they finished, Michael brought me to the attic and gave me a rundown on everything they had done. He wanted my approval before they got paid and asked if I had any questions. That was a nice touch, because I really felt they wanted me to be 100% satisfied with the job.

Direct: (203) 818-0978

4.9⭐
33 Google reviews

Recent Reviews:

Bill★★★★★3 months ago

After being disappointed by a previous spray foam installer that I had worked with to find they were no longer servicing my area. I searched on-line and found Sono Spray Foam. I called and spoke with Jairo Urena, the owner of Sono Spray Foam. He was immediately responsive and came to look at my job (same day within hours), which was not a huge job but was important to me and it needed to get done. Jairo gave me a reasonable price and told me he could do the job the next day. The next day he and his guys showed up as promised. They took great care to protect my home before they did any work. They did a great job applying the foam insulation as we had discussed. They left my home clean and did a great job. I will definitely reach out to them again if I need more work done. Call them, hopefully you will have a great experience like I did. Thanks Jairo!

Patrick Pearson★★★★★7 months ago

I needed help quickly as we found mold growing on our spray insulation in our attic and spoke to multiple vendors who all had crazy theories (and even crazier prices!) but the SoNo Spray Foam team came in and actually diagnose the problem and promptly came and fixed it (we simply had gaps in the existing insulation where air was coming in and mixing with the air already in the attic and causing mold). The team was not pushy but they were prompt (came same day I called them) and gave me a clear and detailed explanation of the issue and how they could fix it and their price was very reasonable. Highly recommend them!

vb dim★★★★★3 months ago

It was a pleasure doing business with this company. The response was excellent from my first phone call within hours He was at the site and gave me an estimate and performed excellent work the next day extremely responsive would recommend and use on future jobs

4.6⭐
62 Google reviews

Recent Reviews:

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!

Richard Monroe★★★★★2 months ago

Workers arrived at scheduled time and did an outstanding job. Answered any questions and concerns before starting. They proceeded to perform their work and finished efficiently. Did some extra clean up when finished and gave a thorough walk-through to explain their work. Everything was done to great satisfaction

Beacon Spray Foam

⭐Specialist

Direct: (203) 915-4885

4.5⭐
8 Google reviews

Recent Reviews:

Raffi R★★★★★3 years ago

Beacon Spray Foam did an amazing job on my house! I didn't have any insulation in my old house, and we were gut renovating so it was the right time to do it. Jesse came recommended by another contractor. He was easy to work with, good communication, fair price, and was willing to work with our preferences. We did rock wool in the walls, safe & sound in the 1st floor ceiling, spray foam under the attic floor, fiberglass in the basement ceiling. These guys were prompt, stuck to the schedule they gave, worked with the changes in my schedule, and finished the job quickly. I had took issue with a minor detail after the job was done & they were paid, and Jesse came back himself to make sure I was 100% satisfied. That's rare these days - I'm recommend Beacon Spray Foam & Jesse to anyone who is thinking about insulating. He was super knowledgeable and took it all in stride.

Rich Santana★★★★★2 years ago

Beacon Spray Foam did an amazing job insulating my new construction home. Open cell spray foam was installed in the attic and closed cell in the crawl space. Jesse was responsive and took the time to make sure I was satisfied with the job. Thank you to the Beacon Spray Foam team for a job well done!

Seth M★★★★★6 years ago

Very easy to work with, did a great job. Jesse was very knowledgable and was available to answer all my questions. I had several contractors review the project and Beacon Spray Foam was by far the lowest.

4⭐
35 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.

4⭐
12 Google reviews

Recent Reviews:

LAYCOS★★★★★5 years ago

I know Antonio since he was just starting business many years ago , and I can't complain at all Pros :all my projects were completed with no problems , 100% of then pass inspection and never had problems with damage equipment during installation ( a common problem with insulation companies) can't complain on price as well always had a fear price . Cons : some minor things like maintaining a better communication during a project and a little more presentation on the trucks ( cleaning and stuff ) Overall I will keep continue hiring Antonio for my projects , I had a couple trys with some new insulation companies in the ct area ( got a better offer ) but at the end I realize the material they use were cheap and theres no compromise taking care my stuff on the job .

Tim Davis★★★★★6 years ago

They did a great job: Thorough, clean, professional, and very competitively priced. AAA

Almendra De La Cruz★★★★★8 years ago

Fast, clean, and very professional. Job was done just on time thanks again!!

3.2⭐
5 Google reviews

Recent Reviews:

Lennox Somers★★★★★5 years ago

Had ecologic come out to do the spray foam work in my attic and basement that we decided to finish. They were amazing and the quality of their work was very impressive. I had a different company do work two years ago on a different area in my house, and was not happy with the final product. Was unsure if I wanted to use foam again, but Rich assured me that I was in good hands with his team. The Crew that came out was very thorough and meticulous. not only was the workmanship excellent, but they left the place Spotless upon completion. I cant recommend these guys Enough!!! Thanks Guys!!

Yiska Batsarai★★★★★6 years ago

I contacted Ecologic Energy Solutions to have my old attic insulated. Sales rep Richard came out the very next day to give me an estimate which was better than I had anticipated. He was very knowledgeable about updating and suggested I foam the attic roof AND walls. I had gotten other prices from other companies but they were $500-1000 more for the same job. Even better, Richard saw the project out from beginning to end, and the crew that came did an amazing job and left my attic spotless. What more can I say? As I continue to update my house, I will definitely use Ecologic in the future for my insulation needs.

Bob Janson★★★★★8 years ago

I used Ecologic for spray foam in my addition in this past fall. Of the three companies I contacted, they were the most responsive, knowledgeable and also competitively priced. Their workers were efficient, neat and it was clear they took pride in their work. I'd recommend them to anybody looking for a good insulator, really top notch.

Frequently Asked Questions — Spray Foam Insulation in Norwalk

These are the questions Norwalk homeowners ask most about spray foam cost, R-value, and open- vs. closed-cell foam — with context for local pricing and roughly 35% typical energy savings. Compare the 10 verified Norwalk contractors above for exact quotes.

How much can spray foam insulation save on heating and cooling bills in Norwalk?▼
Homeowners in mixed climates like Norwalk, 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 Norwalk?▼
For most homes in Norwalk, 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 in Norwalk, CT?▼
In Norwalk, CT and the surrounding area, spray foam insulation typically costs $1.00–$3.00 per square foot installed, depending on the type and your home's specifics. 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 in Norwalk costs $2,000–$6,000. Most Norwalk 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 in Norwalk, CT?▼
When searching for a spray foam contractor in Norwalk, CT, look for ones 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 Norwalk 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 in Norwalk 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.