Spray Foam Insulation in Los Angeles, CA

Find top-rated spray foam contractors and save up to 27% on energy bills

💰 Estimated Energy Savings in Los Angeles

27%
Average Energy Savings
Typical range: 22% - 32%
$1,134
Estimated Annual Savings
Based on $350/month average energy cost
5 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 Hot-Dry.

Verified Contractors in Los Angeles

Air Tight Insulation of Los Angeles

Direct: 3236186376

5
10 Google reviews

Recent Reviews:

Pretty Different★★★★★6 months ago

Great company and service

Timkama Udoka★★★★★6 months ago

Impressive

Lawrence Kipkemboi★★★★★2 months ago

Smart Budget Insulation of Los Angeles

Direct: 3234756208

5
6 Google reviews

Recent Reviews:

Zubair Ahmed★★★★★6 months ago

My major experience here is that. They built the best life and give hopes to everyone that needs to grow.. I won't denied or tell a lies.. They have grown up to the state where positive evidence has shown all over the planet..

Dayanara Trent★★★★★2 weeks ago

Choosing Smart Budget was a smart decision for our wallet and our home. The process was straightforward from the initial call to completion. The crew was punctual, worked with great focus, and cleaned up all debris. They used quality materials and their workmanship looks excellent. The improvement in comfort is immediate, especially in rooms that used to be drafty. For homeowners in LA looking for an honest, budget-conscious, and reliable insulation company, look no further.

Valentina Elisha★★★★★2 weeks ago

I was hesitant, thinking a ""budget"" service might cut corners, but Smart Budget Insulation proved me completely wrong. Their quote was indeed the most reasonable we received, but the quality of work was first-rate. The crew was on time, professional, and incredibly efficient. They did a thorough job sealing air leaks and installing new attic insulation. Our home is noticeably more comfortable already, and the value for money is outstanding. Highly recommended for anyone wanting quality without a premium price tag.

Insulation Masters LA

Direct: 4248322994

5
10 Google reviews

Recent Reviews:

Kelly Mcgrath★★★★★a week ago

This insulation contractor did an amazing job insulating both of our attic spaces in our older home in Los Angeles. Their pricing was very reasonable, especially considering how much work they did. The crew took the time to explain every step to us, and really went above and beyond to get the job done right. While they were working, they found some safety hazards in the attic, like moisture coming through recessed lights, some disconnected venting, and even potential fire risks. They made sure to fix all of these issues for us, not just insulate and leave. We had a few other insulation companies come out for quotes, but none of them were as thorough or detailed. Most just wanted to blow in insulation and be done, but this team made sure everything was safe and up to standard first. The crew—Brady, Danny, and Jordan—were fantastic. They were friendly, professional, paid great attention to detail, and left everything clean when they were finished. Living in Los Angeles, proper insulation really helps keep our home cooler during the hot months, and we can already feel the difference. I highly recommend this contractor to anyone looking for high-quality insulation work.

Max20 B★★★★★a month ago

I needed insulation installation and air-sealing for my home, so I got quotes from three different companies. Insulation Masters LA wasn't the cheapest, but their quote was reasonable, and I felt comfortable with Jordan, who explained everything clearly and answered all my questions. They seemed quite busy and scheduled my job about five weeks out, which was fine since I wasn’t in a rush. The communication was great before the installation. The team made sure to confirm all the details ahead of time, double-checking whether I wanted ceiling or in-wall insulation to make sure they had everything right. This attention to detail made me feel confident that they really cared about getting the job done properly. On the day of installation, they called in the morning to reconfirm my appointment, which I appreciated. The crew arrived right on time and worked efficiently, making sure to seal all the gaps and install the insulation exactly as discussed. My house already feels cooler and more comfortable, which is so important in California’s hot weather. Overall, I was impressed with the professionalism and quality of the work. I’m glad I chose a team that was thorough and reliable for my insulation needs.

Mya D★★★★★a month ago

After spending a long time searching for the right company to handle our insulation removal and spray-in installation, we finally found Insulation Masters LA. From our first call, we spoke with brady, who was extremely knowledgeable and friendly. He made us feel confident about moving forward with the services. brady quickly provided a detailed estimate and took the time to explain every part of the pricing, so we understood exactly what we were paying for. We were happy to find that the cost was much less than other quotes we had received. Everything was scheduled fast, and within a week, the job was set to begin. The crews that handled the removal of our old insulation and the new spray-in installation worked efficiently and treated our Los Angeles home with great care. brady stayed in touch with us throughout the process, giving helpful updates whenever we asked. He even checked in after the work was finished to make sure we were satisfied and to answer any questions we had. brady went above and beyond to make sure we were comfortable with every step. We are very pleased with the results and would highly recommend using this company for any insulation needs in Los Angeles.

USA Spray Me Spray Foam Insulation Contractor

Specialist

Direct: 8555665340

5
6 Google reviews

Recent Reviews:

Brandon Lo★★★★★2 years ago

I recently used the services of Spray Me for my home, and I couldn't be happier with the result. Their team was knowledgeable, professional, and went above and beyond to ensure the work was done to a high standard. They explained the insulation options available to me in detail and helped me choose the right one for my needs. The installation process was smooth and efficient, and they left the work area cleaner than when they arrived. I can already feel a noticeable difference in the temperature and noise level in my home. I highly recommend USA Spray Me to anyone in need of top-quality insulation services.

Christopher★★★★★a month ago

USA Spray Me provided excellent spray foam insulation. The job was done cleanly and the results are amazing.

Edward Roy★★★★★a month ago

USA Spray Me did a fantastic job with spray foam insulation. Clean work and outstanding results.

Attic Insulation Los Angeles

Direct: 3234308585

5
15 Google reviews

Recent Reviews:

Anton Smith★★★★★a year ago

Delivered exceptional service and did an outstanding job. They took care of replacing our ducts, cleaning the attic, installing new insulation, and servicing our vents and furnace. The project was quite extensive and lasted a few days, but the quality of their work was remarkable, and I couldn't be happier with the results.

Ashley Bell★★★★★2 years ago

I don’t think my attic had been cleaned out in twenty years and it was in bad shape. The team cleaned our entire attic, closed holes, and installed brand new insulation. Night and day difference, very happy with their services. The price quoted was fair, the work was good and the cleanup was excellent.

Derick Darwin★★★★★a year ago

Their work was professional and high-quality. They cleaned our attic and replaced the old insulation, which had been neglected for years. The job was done excellently.

Los Angeles Insulation Masters

Direct: 2132752218

5
7 Google reviews

Recent Reviews:

Kristina B★★★★★2 months ago

i had a really great experience with this insulation contractor in los angeles. i needed insulation installed in my home's new addition, and when i called, erick was very helpful in setting up an appointment. they were able to fit me in quickly and explained the whole process so i could plan my schedule. on the day of installation, the team arrived on time and got straight to work. they finished the job efficiently and made sure everything was cleaned up before they left. my home feels so much cooler now, which is perfect for the hot california weather. i'm really happy with their service and would recommend them to anyone looking for reliable insulation work.

Piper Wise★★★★★3 months ago

I recently had my attic and crawl space insulation upgraded by an insulation contractor in Los Angeles. From the start, the team was quick to respond and provided a clear estimate for the work. Jonah and Erick, the crew members, were professional and explained the process in detail, making sure I understood each step. They carefully cleaned the attic before installing new insulation, ensuring everything was ready for the spray application. The team paid close attention to sealing up any holes and gaps, which has already helped keep my home cooler during the hot Los Angeles summer. In addition, they replaced my old vapor barrier in the crawl space, securing it neatly and making sure all the edges were properly taped down. Throughout the project, Kristopher, the manager, was available to answer my questions and made sure I was happy with the progress. The team kept everything tidy, cleaning up after themselves each day. Overall, I'm very satisfied with the insulation work and the customer service provided. My home feels more comfortable, and I’m already noticing the difference in indoor temperature and energy savings. I would definitely recommend this insulation contractor to anyone looking to improve their home’s energy efficiency in Los Angeles.

Craig Salas★★★★★2 weeks ago

After getting a quote from Los Angeles Insulation Masters, I immediately felt confident choosing them for my insulation project. Timothy took the time to explain that they would completely fill my 2x6 wall studs, which another company had told me wasn't needed. Once I let them know I was ready, they scheduled my installation quickly. On the day of service, I stayed on site with the crew while they carefully installed the insulation. This seemed to show the team that I cared about the details, and they were attentive to every part of the work. As the job was wrapping up, Timothy returned to help out and made sure everything was perfect. They both asked if there were any places that needed extra attention, and when I pointed out a few spots, they fixed everything right away. They installed the insulation so precisely that it needed to be trimmed off the face of the studs, just as I wanted. I'm really happy with how everything turned out. The team was friendly, thorough, and made sure I was satisfied with their work. I highly recommend choosing them for insulation services!

The Attic Insulation Specialists, Inc

Direct: 8007783765

5
7 Google reviews

Recent Reviews:

Samuel Sloma★★★★★2 weeks ago

I'm not sure I've ever left a review on google before but felt the need after working with Sergey installing blown cellulose insulation in our attic and having a bathroom vent installed. He was communicative, quick, accommodating, and did not stop until the job was completed. All for a reasonable price. No upsell, no needless add-on services, etc. which felt great as a first time homeowner. Would recommend to anyone.

Arthur Yeghiazarian★★★★★4 weeks ago

Do not hesitate to use their services. I’m truly amazed by their quality and the fair price of what they offer. They fixed our concerns about waterproofing and repairing the flooring. I’m thankful to Sergey and his team for doing an unbelievably clean and quality job. Mazel tov!

Astghik Sahakyan★★★★★3 weeks ago

We recently hired Sergey and his crew to clean out our attic, remove old insulation, and install new CertainTeed Fiberglass Batts insulation. From start to finish, their professionalism was outstanding. They handled the entire process—including sanitation, obtaining the necessary city inspection and building permit—with incredible efficiency and attention to detail. Sergey also guided us through the insulation rebate process, making it easy to maximize our savings. The attic looks immaculate, and the new insulation is installed perfectly. Highly recommend Sergey and his team for anyone looking for thorough, reliable, and hassle-free insulation work!

TipTop Insulation

Direct: 3233055010

5
10 Google reviews

Recent Reviews:

Harvey Wright★★★★★3 months ago

We brought in Tip Top Insulation after noticing our heating system was overworking. Ben came to inspect the attic and recommended a full removal and re-installation. On installation day, Ben and the crew started early, cleared out the old insulation, and sealed every gap they found. They took the time to walk me through each step, even showing where warm air had escaped. New insulation was blown in evenly, and they ensured the soffit vents stayed open for airflow. The attic was left spotless, and I appreciated how the team respected the rest of the home by protecting the floors. Within a week, we noticed the home stayed cooler much better in the evenings, and the system doesn’t cycle nearly as often.!!

John Considine★★★★★5 months ago

We asked Tip Top Insulation to update the insulation across our main home and detached garage. They used batt rolls in the walls and spray foam in the attics, and the garage now feels like part of the home. What impressed me most was how they cleaned up after themselves and gave us a full report when done. They even pointed out a small roof leak we didn’t know about. You can tell they’ve done this a hundred times.

Janie Graham★★★★★a year ago

A great group of insulation experts to work with for my attic reinsulation. They did the job perfectly, covering large areas with the right amount of insulation. They didn't cut corners. The service was also excellent, and Andrew was very easy to talk to throughout the entire project. I am glad I used them. Thank you.

Pure Eco Inc. Los Angeles

Direct: 2132560365

5
6 Google reviews

Recent Reviews:

Alex Brewer★★★★★a year ago

I cannot say enough good things about this company. We’re new homeowners and they took the time to educate us and give us very fair quotes. They were prompt, honest and super thorough with their work. The owner was personally texting us updates and sending photos throughout the entire process. Would definitely recommend this place to anyone getting insulation or air duct replacement! Amazing value for sure!

Danil Petrov★★★★★2 years ago

My experience with Pure Eco was outstanding, I was able to get my attic done in 1 day of work with a quick, courteous, very professional crew by Armando. I didn’t replace my air ducts since I moved into my house 12 years ago, I lost air flow and the layout was horribly messy, they need to be changed , it was the original ducts system, I had noticeable temperature differences in most of the rooms around my house after we checked the attic we noticed that there is no insulation at all but roofing debris. I am very pleased with the ending results. Thank you Armando for making that happen!

Christina Chu★★★★★4 months ago

I would highly recommend Pure Eco for any house insulation projects. We had really old insulation in our attic that hadn't been replaced since we moved in a few years ago. We were also affected by the Eaton fire so we were concerned about any potential ash and debris that may or may not have escaped our initial inspector's notice after the fire. Many thanks to Beni and his meticulous handling of this job. He came out to provide an estimate on a Monday and had us scheduled for our insulation to be removed, cleaned, and replaced with new, eco-friendly material by the next Tuesday (mind you, it was 4th of July weekend as well so timing might've been even quicker if not for that). Shout out to Andres, Romeo and Anthony for the amazing job they did for my family's home. They came exactly on time at 8 AM and went straight to work. No dilly-dallying, just straight up efficiency. They were pleasant and professional to speak with throughout the day. By 3pm they were done and left the house clean. Amazing experience, highly highly recommend.

Cut Above Insulation Pros

Direct: 8334081626

5
3 Google reviews

Recent Reviews:

Emmanuel Ayomide★★★★★6 months ago

Beautiful work done on my home ..highly recommended !!

Kameron Caldwell★★★★★7 months ago

We are beyond happy with the insulation job

Johnnie Christon★★★★★7 months ago

911 Attic Insulation

Direct: 3233863075

5
7 Google reviews

Recent Reviews:

Tony Truong★★★★★a year ago

I contacted 911 Attic Insulation after reading great reviews about them, and this company exceeded my expectations in every way. The reviews I read were all true, and the service provided was outstanding from start to finish. I called the company and thoroughly discussed the attic inspection with Nick, who arrived the next day to conduct it. Nick patiently answered all my questions and provided me with a detailed quote before the end of the business day. My attic was in dire need of attention, with old insulation that needed to be replaced, debris scattered all over the attic, and rat droppings. It was also located under the lowest attic imaginable. Due to unforeseen roofing and electrical work that suddenly became a priority, the one-day job for 911 insulation turned into a two-day job, which I requested. I paid the extra fee to return at a later date so that I could have other services being worked on. Overall, I am extremely satisfied with the service provided by 911 Insulation, and I would highly recommend this company to my family and friends. Now, let's talk about Nick. Nick was my point of contact throughout the entire process, and he kept me informed every step of the way. I didn't have to contact him for anything, as he always reached out to me. I even joked around, saying that if all my home services needs had Nick as the point of contact, renovating the house would be a breeze. Thank you, Nick and team, for the excellent service!

Chip C★★★★★2 years ago

I had an attic with insulation in desperate need of repair/replacement. On top of that, we also had a rodent problem that we needed cleared up. In hindsight, we probably had the insulation and duct issues *because* of the rodent problem. After calling around for a few quotes, I found the team at 911 Attic. When they came out to give a quote, they were prompt, polite, took time to put shoe covers on, and never once tried to upsell things we didn’t need. They did mention a couple things we could add if we wanted to, but I never felt pressured. Even the way they provided the quote was more professional than I expected (itemized quote that allowed me to electronically review/approve). Then came the day of the job. It was scheduled to begin between 8 and 9, and being used to other types of companies being late (cable companies, I’m looking at you), I was expecting them closer to 9 or 10. I was happily surprised when a crew of four guys arrived at 8:15. They started putting down drop cloths and taped the job so that it reminded me of a professional house painters. They worked all the way through, with only a couple minutes off to grab some water, until the job was done. I checked out the job when everything was wrapped up and I couldn’t have been happier with the results. Not only do I have new ducts, new insulation, and fewer rodents (no rodents), I now have a place that I can use as storage that I wasn’t able to before. I would highly recommend the professionals at 911 Attic.

Bryan Holst★★★★★a week ago

Daniel and his team did a very thorough job and left everything extremely clean. They were competitively priced and I would recommend them to friends and family without reservation.

Atlas Insulation Los Angeles County

Direct: 2137996059

5
6 Google reviews

Recent Reviews:

Erik Orezechowski★★★★★2 years ago

Solid work, awesome customer service, quick to return calls and respond.

Justin Raby★★★★★2 years ago

Best customer service and very detail oriented. Will definitely be a repeat customer.

Aziz Tadzhibaev★★★★★3 years ago

High class professional! Knows what he is doing. Amazing costumer communication

Insulation Commandos of Southern California

Direct: 8188730825

5
9 Google reviews

Recent Reviews:

Sergio Brilhante★★★★★9 months ago

They were very easy to work with, they documented all the work. In less than a week I had someone evaluate the work needed and complete. They were also way more affordable than 2 other companies I contacted prior to them.

변재성★★★★★a year ago

This company is highly professional. They are punctual, professional, and efficient in their work. They removed old attic insulation, sealed air leaks around vents and lighting, and installed new rodent-proof insulation. The courteous workers handled everything, and our house was very clean when they left. I highly recommend this company.

Jeff Simmons★★★★★9 months ago

These guys are so amazing they show up on time. They do a good job and the price was good. I highly recommend them because they are licensed and they use all the professional tools and equipment.

Spray Foam Masters

Specialist

Direct: 8666868772

5
8 Google reviews

Recent Reviews:

Oprah Hudson★★★★★2 weeks ago

We had our basement insulated recently, and the difference is incredible. The crew was polite, worked efficiently, and made sure everything was cleaned up after. The home already feels warmer and more energy-efficient. We’re glad we went ahead with the project.

Bob Swiss★★★★★a week ago

Spray Foam Masters did such a clean, efficient job. They explained the process step by step, and their attention to detail really stood out. The whole experience was easy, and I noticed an immediate improvement in how cool the house stays.

Millicent Rameau★★★★★2 weeks ago

Great attic upgrade. Very professional, efficient, and careful throughout. Victor ensured every detail was handled. The results look fantastic, and our home is cooler and quieter. We’ll hire them again.

Koala Insulation of the Westside

Direct: 3102181850

5
9 Google reviews

Recent Reviews:

Jen D★★★★★2 months ago

I had an outstanding experience with this insulation company from start to finish. From the very first call, Rafael set the bar high—he was not only prompt, courteous, and professional, but also patient in answering all my questions and making sure I felt confident about the process. He truly set a great tone for the entire experience. Giovanni and his team were exceptional—arriving early, setting up tarps to contain any mess, and working efficiently while treating my home with care. When they were done, they went above and beyond with cleanup, leaving everything spotless. I can’t recommend this company enough—professional, thorough, and genuinely dedicated to doing the job right. Thank you, Rafael, Giovanni, and David, for the amazing work. I’ll be recommending you to neighbors, friends, and family without hesitation.

Katy Nichols★★★★★a month ago

Govanny is the BEST!!! He and his team at Koala went way above and beyond. Our attic was in really bad shape and Gio and the crew did an amazing job removing all the junk, cleaning up and installing new insulation. He even helped out installing new air ducts and sealing up all holes to protect against rodents and SO MUCH MORE. Koala prices were great and super reasonable, the team was professional and courteous, the work was amazing and fast and I just can’t say enough good things about these guys. If you do t hire these them, you’re an idiot. Thank you!!!!

Katie Sperring★★★★★5 months ago

I called several insulation companies before learning about Koala and there is no comparison. Koala called me back within an hour of being contacted, made and kept a free estimate appointment in a short amount of time. Their technician was prompt, polite, the quote was emailed within 24 hours and the service was completed within the promised time. They took precautions to leave the residence as clean as they found it and were very considerate.

Insulation Labs

Direct: 8777865553

4.9
414 Google reviews

Recent Reviews:

Henry Collins★★★★★a month ago

I recently had blown-in insulation installed in my home by Insulation Labs, and I’m seriously impressed with the whole experience. From start to finish, the team was professional, efficient, and super knowledgeable. They showed up right on time, walked me through the process, and made sure everything was done neatly, no mess left behind. I could literally feel the difference right away, the house feels more comfortable, and I’m already noticing the AC doesn’t have to work as hard to keep the temperature steady. The crew also did a great job sealing up any air leaks before adding the insulation, which made the results even better. If you’re thinking about improving your home’s energy efficiency, I highly recommend giving Insulation Labs a call. They’re reliable, honest, and deliver exactly what they promise. Couldn’t be happier with the results!

ADvance INvestments★★★★★3 months ago

Great company! They worked efficiently and quickly. Eli was great when he came out to our unit that needed insulation and give us an estimate and talk about what could be done to these older units to make the more energy efficient and stay cooler during the summer months for our tenants.

Danny A.★★★★★a month ago

Working with Fred at Insulation Labs was an easy process and super professional. Always on time with installs and fair pricing. Thank you!

Alpine

Direct: 7479465817

4.9
43 Google reviews

Recent Reviews:

Sir Cain★★★★★5 months ago

Very professional ,detailed, supporting completed quality work.I I'm sure calling these guys again.

Jacob Gibbs★★★★★5 months ago

Thank you for the quality overall! The price the team that was sent out was amazing and knowledgeable.

Savage (Oldskool Speedy)★★★★★8 months ago

Outstanding costumer service. I had a few questions, Melissa was really professional and patient to answer them.

Hunter's Insulation

"Expert Insulation Contractor in Granada Hills"

Direct: 8189795857

Recent Reviews:

Arman Escobar★★★★★3 years ago

I interviewed 10 insulation contractors and instantly I knew Luke was the best. From the beginning his knowledge of insulation, the area, home building, and proper code was evident. Luke treated my home like his and made sure he was giving the best product for my home. He didn’t oversell, he showed me all options and consulted on what would be the best for my project. His price was reasonable and his communication was excellent, I never had to worry about him showing up or not putting in work like you might with other contractors. He works efficiently, cleans up after, and is always available to answer questions or concerns. I will later insulate my garage and look forward to working with him again. Anyone who needs any sort of insulation work should not hesitate to call him. Thanks for everything!

rafa vts★★★★★4 months ago

Luke was great I work with and extremely knowledgeable on local codes regarding ventilating attics and such. He did insulation work for me in Granada Hills. He was very responsive and I’m happy with the work. Passed inspection without an issue.

Hilario Garza★★★★★4 months ago

I couldn’t be happier with my experience working with Hunter’s Insulation! From start to finish, Luke Hunter and his team were absolutely fantastic. The estimate I received was incredibly detailed and thorough, outlining the full scope of work so I knew exactly what to expect. Luke even included photos of the products being used, which really helped me understand what I was purchasing, a level of transparency I truly appreciated. Every step of the process was seamless. All communication and approvals were handled through my own personalized online portal, which made it so easy to stay updated and keep track of progress remotely. The crews were courteous, clean, and professional — they treated my home like it was their own. By the time they finished, everything was spotless and the work was done perfectly. Overall, I’m extremely impressed and thankful for such a smooth, professional, and friendly experience. I highly recommend Hunter’s Insulation to anyone looking for top-quality insulation work and great customer service!

Frequently Asked Questions — Spray Foam Insulation in Los Angeles

Does spray foam insulation work well in hot dry climates like Los Angeles?
Yes — spray foam is highly effective in hot dry climates like Los Angeles, CA. While moisture control is less of a concern than in humid climates, the air sealing properties are critical for keeping hot desert air out and cooled air in. In extreme heat climates, an unsealed attic can reach 150°F+, dramatically increasing AC load. Spray foam in the attic can reduce attic temperatures by 30–40°F.
What is the best area of my home to insulate in Los Angeles?
In hot dry climates like Los Angeles, CA, the attic is typically the highest-impact area to spray foam insulate. Desert sun heats roofs to extreme temperatures, and an uninsulated attic transfers that heat directly into your living space. After the attic, crawl spaces and rim joists are the next highest-impact areas. A local contractor can perform an energy audit to identify where your home loses the most conditioned air.
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.