Spray Foam Insulation in Minneapolis, MN

Find top-rated spray foam contractors and save up to 40% on energy bills

💰 Estimated Energy Savings in Minneapolis

40%
Average Energy Savings
Typical range: 35% - 45%
$2,160
Estimated Annual Savings
Based on $450/month average energy cost
3 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 Subarctic.

Verified Contractors in Minneapolis

Brian's Insulation

Direct: 7634445050

5
8 Google reviews

Recent Reviews:

William Guelker★★★★★3 weeks ago

We had a restoration company install the insulation with non-insulation professionals and I was concerned about the quality of the job. Brian’s came out on the recommendation of a construction company and identified all the problems that were ignored. Their expertise was excellent and I am so glad they could fix the problems. The guys did an excellent job and cleaned up to look like they were never here. Great price and very professional from bid to completion. I would highly recommend them and if you are in need because of a disaster in your home you should hire them.

Adriana Zona★★★★★a month ago

Our house was built in 1947 and we had a big problem with ice dams every year. So a few years ago, I started getting estimates from insulation companies. It never felt right so I continued to delay it. One recent fall day, I saw a Brian's insulation truck in my neighborhood and decided to follow up with a call and was impressed with the quiet competence of one of the owners that came out to estimate the project. We had the new insulation installed this week and the house is definitely warmer. The team of installers blew in the pink insulation, repaired holes in the attic and sealed all of the areas around the ceiling light fixtures. They were professionals in every way. very impressive, In addition, the office manager submitted a rebate for me to Centerpoint Energy. I am delighted with my new insulated attic and the price was better than I expected. For all these reasons, I highly recommend this family-run company - Brian's Insulation. Here are some photos of the tube carrying the pink stuff into the attic from the front door.

C Holzer★★★★★3 weeks ago

I am so impressed with our experience working with Brian's Insulation. Their professionalism, willingness to provide helpful guidance in regard to how best resolve our insulation needs, attention to detail throughout the process and incredible flexibility while we were working through unexpected construction challenges was greatly appreciated by us. We had spray foam blow in and batt insulation along with vapor barrier installed throughout our entire house. We wholeheartedly recommend Brian's Insulation! It was great working with them for our project.

Northern Home Seal & Products

Direct: 9526817640

5
5 Google reviews

Recent Reviews:

Zach Meierhofer★★★★★4 months ago

Sam and the team at Northern Home Seal Products have been amazing. They did a great job with my product, it came through on time, and they supported me after the project as well. I'm really impressed with this work and would recommend for anyone doing attic insulation projects.

MA Peterson★★★★★6 months ago

We’ve been an industry partner with Northern Home Seal & Products for many years, and they continue to exceed expectations. Their outstanding service, exceptional product quality, and reliability have made them a trusted partner. Their commitment to excellence and attention to detail consistently stand out. Highly recommend Northern Home Seal & Products for anyone seeking top-tier service and products!

Sarah Ferreira★★★★★3 years ago

Very reputable and honest company. Came referred by my neighbor that had the same ceiling/roof condensation issues as our home. Sam & team performed the work to scope and went above and beyond when an unexpected issue occurred. Their integrity is commendable. Would recommend with no reservations.

Houle Inc

Direct: 7637678412

5
7 Google reviews

Recent Reviews:

SK VanWylen★★★★★a month ago

Houle insulated my attic. The team was courteous and efficient. They cleaned up very nicely when they were done. My house is clearly warmer. I highly recommend for anybody with an older home.

Sharon Dwyer★★★★★2 weeks ago

After encountering numerous problems trying to insulate our old sleeping porch, the entire crew did an absolutely amazing job. They were forced to virtually cut apart the wood floor, then create an opening in the subfloor, to insulate the floor. Insulation was blown between all joists floor boards were put back together extremely well. I might not even need a giant rug. Cleanup was superb. Whatever your insulation needs, call Houle.

Shannon McCrady★★★★★a month ago

Wow. What a difference insulation makes! Not only did we immediately notice a difference with heating/cooling, but they also helped me apply for available rebates (many of which seem to be expiring at the end of year)! Super nice people who did a great job. Highly recommend!

Cloud9

Direct: 6129139954

5
5 Google reviews

Recent Reviews:

Trip Biesanz★★★★★a year ago

Working with the entire Cloud9 team was fantastic! They made the entire experience super seamless and I never felt pressured once. They are true professionals and I would highly recommend to anyone that is looking to be more comfortable in their home and save money on their bills. We saw immediate savings even in a mild winter!

Frank Bolton★★★★★a year ago

Cloud9 Insulation is great. Their service was top-notch and the people who came to install were cool and very professional. We needed more insulation in our attic and were looking at different types like fiberglass, cellulose, and spray foam. We went with Cloud9 because they use materials like wood fiber that are much better for the environment. Was a no-brainer. Definitely recommend.

Kira Fischler★★★★★2 years ago

I was happy to find an eco-friendly option for my insulation needs. The sales consultant was informative and I did not feel pressured. I can already feel the difference in the temperature of my upstairs rooms!

Alpha

Direct: 6513901867

5
5 Google reviews

Recent Reviews:

Jacob Miller★★★★★10 months ago

They replied right away and were very respectful.

Rob Butler★★★★★a year ago

Really took care of business from beginning and if there is ever a need they will definitely be the ones I call upon.

Bryan Mastalish★★★★★5 months ago

Very efficient, and reliable company!! Glad I found them!! I couldn't recommend a better company!! 😊

Spray Foam Insulation Plus

Specialist

Direct: 6127309417

5
8 Google reviews

Recent Reviews:

Bob Wennerstrom★★★★★a month ago

We had our roof replaced and hired Travis to install some Spray Foam insulation. His was the lowest bid of the three estimates, but that wasn't the main reason we hired him. When he stopped by to give his estimate, he was knowledgeable, personable, and I trusted him. After reading all of the positive reviews, it was a no brainer to hire him. Right on time, neat, finished in a timely manner, and cleaned up well. Highly recommend Travis. You won't be disappointed.

Jimmie Sparks★★★★★2 months ago

I stop by while they were insulting our neighbors walls and ask if they could insulted our garage attic! They give us a great price and stop over later in the day and did ours. They cleaned up and did a great job! Thanks jimmie & Anita

L Z★★★★★a month ago

I thought Travis and his guy were honestly wonderful. Travis came out for a quote and listened to my concerns and really helped me out in pricing and a wonderful job. It sucked they were booked out so far but it gave me time to finish what I needed without feeling rushed to get the job done. He gave feedback too which helped every step of the way. For a 1200 sq foot 4.5 feet tall crawl space, it took almost an hour and a half. I took the whole day off work thinking it would be that long, instead I got to go in and work half a day because of how fast he is and how nice it looks! My crawlspace is held up by cinder blocks in the middle so he even helped seal around the edges because he knew vapor barrier tape wouldn't do the job. He and the other guy did wonderful going above and beyond letting me know of other areas they had to insulate before spray foaming. Grade A from this team!

Gunner Insulation

Direct: 7633555460

5
10 Google reviews

Recent Reviews:

Nick Dresen★★★★★a month ago

From start to finish, this process was timely, efficient and effective. The crew was respectful of our home, well organized, knowledgeable and completed the entire job quickly. My garage was cleaner when they left than when they arrived. We would highly recommend Gunner for any insulation work. Thank you!

Peter Brudzinski★★★★★2 months ago

They were great - their quote process was easy, they explained what they'd recommend and why and answered the many questions I had. The office team was great with communicating everything and the installers (attic and crawlspace teams) were incredibly respectful and thorough. All around, if you need insulation work they're great.

Mike Day★★★★★a year ago

If you need something insulated this is the company you want. We have a very old home that's had 3 different additions from three different time periods. It was a mess up there! Justin with Gunner Insulation definitely came through and did an amazing job. Great communication from the tech (Justin) and from the office. The job was done well and I could tell the difference after day one! On top of great customer service and doing a quality job they're pricing was beyond reasonable. I am a do-it-yourself guy and after crunching the numbers this just made way more sense to have the pros do it and get it done quick and right. Definitely give these guys a call, I'll be referring them to all my other customers in the future.

Century Insulation

Direct: 7632708765

5
8 Google reviews

Recent Reviews:

MRA Salzer★★★★★2 weeks ago

Evan, Tyler, and Rob did an excellent job for my project to dense pack insulation for my home. The entire experience was very good. Pricing was reasonable, assistance for rebates, scheduling, installation, and clean up.

Ron Ketcham★★★★★a month ago

We had Century Insulation insulate our garage prior to our installing a garage heater. Their price was very competitive and they even notified us that they had an opoening in their schedule and were able to compelte the job two weeks earlier than originally scheduled. The crew, Justin and Evan, were fantastic. They were very respectful of our property, worked quickly and cleaned up after they were done, leaving our garage and property immaculate! We can't recommend Century Insulation high enough! Thanks for a great job!

Johnathon Simmonds★★★★★a month ago

Seldom do I leave reviews because it takes a lot for us to feel obliged to share an experience at a high rating. That being said - the team at Century Insulation were incredible. We began inquiring on their insulation services as early as November 2021, and again in fall 2023 as we planned out how we wanted to renovate our upstairs, and lastly in 2024 debating if we would keep what we had and improve it, or completely remove and start from scratch. We were trying to decide between traditional fiberglass or taking the modern approach - closed cell spray foam. In 2025, we made the leap to proceed forward. We renovated our Attic space and it required a full demo and insulation project to bring our 1950s era home up to modern standards. Our R value prior was next to nothing - 2 inches of fiberglass from the 1950s or 60s that had degraded in our one and a half story home. Days were often spent being over 100 degrees in our attic. My wife and I were thoroughly impressed by the team’s attention to detail and authenticity to delivering value and quality. Now when we’re in our attic, it’s cooler than the downstairs which is an achievement in a one and a half story home. A handful of shoutouts to the crew: Crystal in the office went above and beyond in scheduling the team out and working with our project timetable. She also advocated for the offered rebates and helped us achieve a very positive outcome. Ryan was flexible and made several visits to quote us and answer any and all questions in a timely manner. He was flexible with our budget and helped us achieve a quote that fit with our project. Jesse as the business owner made himself available for all relevant concerns around permitting, HVAC questions, and how we could get the best bang for the buck being spent with the R-Value we were looking to achieve. He also helped us pass inspection and in speedy fashion adding a paint layer required by our city. I enjoyed working with each of them and their crew that came out. Century insulation is a down to earth group of folks looking to do business with good people. People want to buy from good people - and these are good people. I would gladly partner with them again on future projects and have gladly given their info to others we know. Give them a chance if you’re looking to do an insulation project, you’ll be happy you did.

Affordable Insulation

Direct: 6124352780

5
8 Google reviews

Recent Reviews:

Randy Alberts★★★★★in the last week

I had Affordable Insulation out to update the insulation in my old farm home, I have an electric furnace and the heating bill is insane....but since Affordable Insulation came and got my attic space updated, air sealed and add more insulation. My heating bill has drastically decreased and the comfort in the home has increased greatly. Thank you Affordable Insulation!!!!

Steve Solberg★★★★★11 months ago

We bought a home and during the inspection, we realized we had mold in our attic. We called several companies and looked at various reviews. We ended up using Affordable Insulation and it was positive experience. They communicated well, showed up when they said they would and completed the work in a timely manner. I have since recommended them to my family and others.

Harriet Lund★★★★★5 months ago

We appreciated the no fuss straightforward bid that Dan Hansen gave us as well as his explanation for what was and wasn't needed and why. The workers Alexis and Tarik arrived on time and got right to work. They were very personable and eager to make sure my little storage area was what I needed. Nice job all.

Hunter Spray Foam Insulation

Specialist

Direct: 6127128951

5
5 Google reviews

Recent Reviews:

Israel Vasquez★★★★★a year ago

Loved the work they did! I Highly recommend there service

Tj K★★★★★4 months ago

A good company with friendly and most importantly hard-working professionals

Amy Becher★★★★★a year ago

These guys are the BEST , SUPER NICE , SUPER EASY , AND THE COMPANY SHARE MY SONS NAME HUNTER ,HOW COOL IS THAT! I give these guys 5 STARS, Because they earned it ,I recommend them to everyone for this service !!!!!!! Thanks guys ! Amy!

Minneapolis Insulation

Direct: 6124352773

5
24 Google reviews

Recent Reviews:

Luis Victorino★★★★★a month ago

Very thankful I chose this company! Layne was honest and to the point during the inspection, and extremely transparent with the estimate. I work in construction myself, so I really appreciated the professionalism and straightforward approach. He was also able to provide the rebate instantly—something no other company could do. Highly recommend!

Joshua Henkemeyer★★★★★4 months ago

Everything went great, Layne was a great initial contact and answered every question thoroughly. He helped understand the rebates we received and the crew did an excellent job as well. Would recommend to a friend.

Adam Harvey★★★★★4 months ago

I am happy I chose this company. They have hundreds of 5 star reviews and lived up to the reputation. Layne and the crew were great! I got my rebates back and am saving money monthly already!!

USA Insulation of Minneapolis

Direct: 6127673030

4.9
11 Google reviews

Recent Reviews:

Joe Pollock Latner★★★★★a week ago

Great experience all around from Luke who helped us decide which insulation route to take and Harley and the team did a fantastic and professional job insulating. In addition they noticed our bathroom fan vent going into the attic and not the roof and were able to take care of that for us so we’re not getting moisture into the new insulation. Great job USA team.

breezeymom★★★★★4 months ago

Both my neighbor and I had crews at our houses, one was just foaming the gaps at vents and pipes, as well as additional insulation on top of what I had; the other was an extraction due to critters, sanitizing and a whole new layer of insulation. They arrived ON-TIME, friendly and explained everything they were doing. My project was complete in 2-1/2 hours; my neighbor an additional hour later. 2 crews: roughly 4 hrs; both jobs complete!!

Patricia Weiss★★★★★a week ago

From the sales to the actual service done everything was well done. No sales pressure. The work was completed in a timely manner. Technicians were very professional, knowledgeable, and efficient and very friendly. Highly recommend this company. We had both sides of our town home done and they did an amazing job sealing the areas that needed it and repairing vents and replenishing the needed insulation.

Insulation Inc.

Direct: 6125254046

4.9
52 Google reviews

Recent Reviews:

Claire Schwitzer★★★★★a week ago

A big thank you to Carlos and the crew! We had insulation added to our attic and Carlos came out same day, provided an estimate almost immediately (with multiple options to choose from), and scheduled the project. The team that performed the insulation was incredibly helpful and walked me through what they were doing, made sure to answer any questions that I had, and were incredibly professional. You're appreciated. Thanks again.

Mark Richards★★★★★3 months ago

I needed insulation work done in my attic. Insulation Inc. was GREAT from first contact through follow up. Carlos contacted me immediately upon my requesting a phone call and came out ASAP to look at the project. He proposed an effective, cost-saving approach to the job and promptly sent me an estimate that evening. The quote was very good, very fair, and I accepted. Then, he arranged to have the work done within a couple days. The crew was here yesterday and were excellent; good communicators, friendly, clean, mindful, and efficient. The quality of their work was superb. Having worked with many contractors during my days, I couldn't have expected the project to go as well as it did. If you're looking for a home insulation provider, look no further than Insulation Inc.

Jeff Tredennick★★★★★a week ago

Carlos and his team were amazing to work with! The crew came in and explained everything that was going to happen to get the attic and garage insulated. They were very respectful and tidy, after shopping multiple companies in the area Insulation Inc had the best pricing around and are true professionals. Thank you Insulation Inc team for the amazing work

D&H Cottage Grove

Direct: 6513602531

4.9
39 Google reviews

Recent Reviews:

Nicolas Canale★★★★★3 months ago

Wonderful services thank you very much for excellent service and results.

Marcus Shaw★★★★★2 years ago

Great customer service, amazing response time & very professional can’t to do business with them again in the near future !

Micheal Roy★★★★★2 years ago

My outside wall was filled with insulation by the D&H Cottage Grove Spray Foam Staff. We have been quite pleased with the outcomes, and they were very prompt, competent, and affordable. I was quite grateful that all of the work was carried out by other parties without disrupting our hectic home.

Saint Paul Spray Foam Insulation Pros

🏆Certified Pro

Direct: 6513698365

4.9
43 Google reviews

Recent Reviews:

Mario Arroyo★★★★★8 months ago

Really great company! My house feels cozy, and comfortable! If you’re looking for work done look no further Saint Paul Spray Foam Insulation Pros got you! 100% recommend

David Koch★★★★★8 months ago

I was very impressed with the services offered, how responsive their team is and the professional and very informative website which explains the whole process of their services. I would most definitely use them again in the future and I will be referring friends to them that need any spray foam done!

pickingbolts★★★★★a year ago

I was very pleased with Saint Paul Spray Foam Insulation Pros. They insulated my warehouse that I use for storage and the product they used is next level because the temperature inside my warehouse stays at a consistent temperature that is comfortable, regardless of outside temp. I highly recommend them.

D&H

Direct: 6513602631

4.9
40 Google reviews

Recent Reviews:

James Cassandra★★★★★2 years ago

I have not received any of their work yet, but they at least take the time to respond and we're very professional while communicating and did it with a timely manner where I have had other businesses not ever respond or take days to.

Kelvin Mark★★★★★2 years ago

Our attic's blown-in insulation was put by D&H Woodbury Spray Foam Insulation, and they performed an excellent job. The staff arrived at our modest residence and left in about one hour. They were incredibly kind and professional, and they arrived on time. Their phone estimate was affordable and accurate (no surprises). They had the appropriate responses to all of my queries. I would definitely recommend them!

Jason Plentychief★★★★★2 years ago

Very professional and not to mention top quality work at a decent price. Highly recommend this company unlike other company's it's not all about the money with them.

Guevara Insulation LLC

Direct: 5076493765

4.8
61 Google reviews

Recent Reviews:

Nick Frenzen★★★★★2 months ago

Guevara Insulation absolutely knocked it out of the park with their spray foam work. From start to finish, their team was professional, knowledgeable, and incredibly detail-oriented. They showed up on time, communicated clearly, and treated the space with care and respect. The quality of the spray foam application is outstanding. Clean lines, consistent coverage, and no shortcuts. You can tell they take pride in their craft. The difference in temperature control and air sealing was noticeable immediately. If you are looking for a crew that does things the right way, stands behind their work, and delivers top-tier results, I cannot recommend Guevara Insulation highly enough. Easily a 10-star experience.

Lara Vigenser★★★★★3 months ago

Luis and Ryan were exceptional. I had my attic spray foamed this spring and and fireproof with painting and they did a wonderful job. It is a family owned business. Luis is the son of the owner and he was so helpful and professional. The cleanup was excellent.Very reasonably priced! I checked around and compared prices with other insulation companies and they were the cheapest. Very professional and very communicative as well! I would definitely recommend.

Michael “Herb” Mester★★★★★7 months ago

Can’t say enough good things about Guevara Insulation. On time, great work! When I needed some help with a broken vent left to me by the previous owner, Luis went the extra mile, picked up the material and made sure the vent was properly fixed before finishing the spray foam on the roof! Top notch work snd people! If I needed the same work done in-the future, Guevara Insulation will be my first call! Thanks again Luis!

Koala Insulation of St Paul

Direct: 6515054393

4.8
8 Google reviews

Recent Reviews:

M Wafflespork★★★★★2 months ago

I like to think a company is best judged not by when everything goes perfectly, but when there are issues. Everyone makes mistakes, miscommunications occur - it's impossible to *always* create a perfect experience. How we choose to react to those instances speaks to our merit. Koala insulation came to re-insulate my attic. Before the job, they had told me we couldn't be present while spraying due to fume risk, but otherwise we should be fine. When they were finishing up for the day, one of them made a comment to my roommate that was slightly misconstrued about the safety of being there. I had assumed I would recieve a message from them when they finished foe the day - they had let me know theyd text me when the job was *done* done, which wouldn't be for another day. So suddenly I found myself with my roommate (very reasonably) worried it might not be safe to go inside, after hours when no one was working to clarify. Not gonna lie, I was *extremely* angry. Thankfully, their automated system caught that I had a sensitive concern, and forwarded it to the person in charge. He called me directly, answered all my questions in detail, and confirmed we were safe to go in. Just a miscommunication, and one he took extremely seriously given the nature of the comcern it caused. I cannot tell you how much I appreciate how seriously they took that concern, rather than brushing it off or getting back to me the next day. All in all, they did a phenomenal job and were professional, courteous, and way faster than I expected. Cannot reccomend them highly enough.

Michael Cheng★★★★★a month ago

They re-insulated our crawl space under our dining room. From the appointment with Jon to getting an estimate and Uriah and his team to install was smooth and seamless. Jon was very responsive and answered any questions we had quickly. He also provided options for the work if cost was a concern. We felt their price was fair and reasonable and proceeded with the full crawl space. Uriah and one other came to install the insulation. I didn’t get his partners name, but they worked quickly and efficiently. Finished everything in a couple of hours and there was virtually no mess left. We had concerns about the dust that might be created by removing the old insulation, but they sealed the opening and there was no dust at all. Bagged up all of the old insulation and sprayed the new. We would recommend Koala for any of your insulation needs! They are also one of the few insulation installers who do crawl spaces on top of everything else.

mbamsawyer★★★★★2 weeks ago

Great service and communication. Excellent results We loved working with Koala. They insulated our second story and installed roof vents. Seeing the final blower door test results showed us that they are truly experts in insulation.

Spray Foam Tech

Specialist

Direct: 7632412092

4.7
15 Google reviews

Recent Reviews:

Max Merwin★★★★★4 months ago

I had Joe and his crew come out to re-insulate my attic after having some water damaged insulation removed. They did a fantastic job installing chute vents, laying down foam, and blowing in insulation; with progress pictures! I even had some scheduling troubles with the company mitigating the water damage, and Joe was very understanding and flexible. They helped both identify my issue and solution it, all for a very reasonable price. I highly recommend their services!

Rita Johnson★★★★★2 years ago

Joe and his crew do amazing work! Fast, efficient, clean up the site well, AND at a fair price!

Daniel Wilson★★★★★a year ago

Wonderful service from Joe and his Crew! Joe was responsive, friendly and professional. He came right away and gave a very fair quote to spray an unfinished room. I did some demo/removal of old insulation and when I realized there would be some complications Joe came out right away again to problem solve. He gave an incredibly reasonable revised estimate and there were no surprise costs once the job started. His crew were on time, respectful and committed to doing the job right. I will definitely call again for my next insulation job.

Choice Foam Insulation

Specialist

Direct: 6518081429

4.3
51 Google reviews

Recent Reviews:

Trenton Voltin★★★★★5 years ago

It’s been a few months since we had Choice Foam out to insulate our attic. After meeting with Anthony, he provided us a bid promptly. The price was right. He was able to fit us in before it got too cold and they finished the job early. Anthony and his crew did an excellent job. We’ve noticed a big difference in the warmth of our house and our heating bill has dropped significantly from last year. These guys are great and I’m so glad we found someone local to do the job!

Josh Hagberg★★★★★9 years ago

I had the privilege of doing business with Choice Foam, I say this because too many companies make lofty promises and do keep them. That was NOT my experience with Choice Foam Insulation. Everything went exactly as planned, from the initial quote to the time line to the installation, was spot on. The team was very professional and made sure that things were done right. I can appreciate when a company takes pride and ownership of a project, not just treating it like another job. They treated me and my home with the utmost respect. Over the past winter months, we have already seen significant savings in our heating bills! I am definitely recommending to my friends and family. Thanks again Choice Foam Insulation.

J.E. Urseth★★★★★9 years ago

Anthony and crew did a great job on my insulation project. Anthony gave me several times to meet for a quote as well as an installation date. Day of the install: they showed up on time, were very professional, and did a great job of preparation and clean up. Their product is high quality and I can already notice a big difference. I would recommend them highly.

Frequently Asked Questions — Spray Foam Insulation in Minneapolis

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.