Spray Foam Insulation in Raleigh, NC

Find top-rated spray foam contractors and save up to 33% on energy bills

💰 Estimated Energy Savings in Raleigh

33%
Average Energy Savings
Typical range: 28% - 38%
$1,426
Estimated Annual Savings
Based on $360/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 Mixed-Humid.

Verified Contractors in Raleigh

Carolina Weatherization

Direct: 9192610005

5
7 Google reviews

Recent Reviews:

Ashley Renee Miller★★★★★3 weeks ago

Let's say if you don't go with this company, you'll be severally disappointed. The Carolina Weatherization team, (Matt, Eric, Chris and Brian) are phenomenal! I considered putting in insulation in October to support my energy costs and went through several quotes with other companies prior to selecting this team. I am incredibly happy that I reviewed this quote and chose this team. They let me know they were on the way prior to arrival, took impeccable care of my home by laying down cloth, wearing booties, and doing a bang up cleaning job prior to leaving. They were helpful in repairing a shelving unit and installing a brand new attic door to support all of their work. These gentlemen take pride in their work and it shows with how diligent they are in ensuring that the right steps are taking before, during, and after.

B Littlefield★★★★★4 months ago

We just bought an older home that had some serious insulation issues in the attic. Carolina Weatherization came out today and it looks like an entirely different attic! The guys were so courteous and efficient - it was raining this morning and they took extra care to place drop clothes everywhere and cover their boots. They worked tirelessly all day in this awful heat and I was so impressed! Matt was a pleasure to work with and we are confident this will make a huge difference in our energy bills. Highly recommend!

Camille Garcia★★★★★4 years ago

Matt Phillips and his team did an amazing job on several projects we had. They encapsulated our crawlspace, installed a dehumidifier (provided wireless humidity monitor), installed a bath fan, replaced an old can light, and added insulation to our attic and bonus room knee walls. Their workmanship is top notch and their pricing was competitive. The team was professional and detailed oriented. I especially liked working with Matt Phillips, he was very patient, and answered all of my questions while providing me honest feedback on some items and even guidance on other projects that his team were not going to tackle for us. He is just a stand up guy who genuinely cares about his customers and ensuring they are taken care of, before, during and after the project is done. I highly recommend them for any home-improvement needs you may have.

Triangle Radiant Barrier & Crawl Space Encapsulation

Direct: 9196464587

5
8 Google reviews

Recent Reviews:

Myranda★★★★★a month ago

After getting multiple quotes from different companies around the triangle I decided to go with Triangle Radiant Barrier based off the reviews and the price. They did my crawlspace encapsulation and I am extremely impressed and pleased with the results. From the start I knew the company was an honest company. I started with someone coming out to take photos and measurements, then had a zoom meeting with one of the owners to go over the price and upgrade options, and then had someone reach out to schedule. Once my install date came they had the old insulation and vapor barrier out, the fungus fogging and scrubbing, and new vapor barrier down in 2 days. Then a few days later they came out and did the spray foam in less than 1 day. Afterwards one of the owners came out and inspected the work and answered all my questions. As someone who is very picky on hiring companies, I can’t say enough about how good this company treated me and my home. I HIGHLY recommend going with them for your crawlspace needs!

mariano ballon★★★★★2 weeks ago

Triangle Radiant Barrier did an amazing job on my crawl space encapsulation. I shopped around with more than six contractors, and these guys were hands-down the most professional and knowledgeable. They took the time to explain everything and gave me several options to fit my situation. Jason and Marty knocked out the installation in just one day and did fantastic work. And huge shoutout to Ignacio — the spray foam looks great and he clearly takes pride in his craft. Couldn’t be happier. Highly recommend this team!

Mariah King★★★★★a month ago

We were experiencing a number of crawl space issues, and the team was incredibly supportive and patient throughout the entire process. They took the time to explain what was going on and were thorough even in the more challenging areas of our crawl space—some spots were close to 18 inches. Everyone was respectful of us, our property and our chickens, which we really appreciated. Marty and Brian were two team members we had the chance to speak with directly, and both were professional, knowledgeable, and genuinely kind. They made a tough project feel manageable, and we’re grateful for their care and attention to detail. Highly recommend this team for anyone needing crawl space work done right.

Raleigh Spray Foam Insulation

Specialist

Direct: 9199254717

5
1 Google reviews

Recent Reviews:

Edita Alisa★★★★★a year ago

Website is professional and has an easy to navigate layout. Very informative about the services they offer. I recommend them and they will have my business in the future.

USA Insulation Raleigh-Durham

Direct: 9195007898

5
8 Google reviews

Recent Reviews:

Gwen Capps★★★★★a week ago

Miles and his guys were great! They worked quickly and professionally. We were asked if we had questions and if we did, they were answered. They cleaned up any mess they made. When they were through, we went over everything they did. We were extremely pleased.

Linda Sturdivant★★★★★2 months ago

USA insulation did a marvelous job of both attic and the injection for the walls. They arrived early, made sure everything was cleaned and completed before leaving.. They explained what they were doing, showed us photos of the before/after installation. I would recommend this company without reservation.

Alan Fader★★★★★a month ago

They did an outstanding job. The wall and attic insulation went great and looks great. Cleaned up well after they finished.

NC FOAM PROS

Direct: 9199461965

5
8 Google reviews

Recent Reviews:

Randal Caldwell★★★★★a month ago

I can’t say enough good things about Dean and the whole crew at NC Foam Pros. Dean walked me through several insulation options with clear, upfront pricing. Once we decided on the best plan, I was on the schedule in a week. The team showed up exactly as promised and worked an unbelievable 12 hours straight to get everything finished in a single day. I was blown away by how carefully they prepared and managed the job site. Their attention to safety and cleanliness was just as impressive as the finished product. They might look like a young crew to an old guy like me. But, they were absolute professionals. I’d hire them again in a heartbeat. 100% recommend.

Tara Jackson★★★★★3 weeks ago

Dean was very polite and respectful. He provided a detailed explanation of his findings and recommendations. His price was reasonable and the service was excellent. His team was just as respectful. Everyone kept me informed of the progress and provided pictures along the way . They were very careful not to make a mess or damage my property in any way. I would highly recommend this company

Hunter Stricklin★★★★★3 weeks ago

Dean and his crew were amazing! They were professional, on time, and detail oriented. I truly could not recommend them enough. I was on the fence about getting our attic spray foamed, but now that I know there is someone I can trust to do it - we are definitely going to get that done. If you need anything insulated - Dean is the guy to call!

MPI Foam

Specialist

Direct: 8446743626

5
7 Google reviews

Recent Reviews:

Preston Lawlor★★★★★a month ago

MPI Foam is legit. These folks know their trade inside and out. Consummate professionals. I am a GC here in the triangle and have relied on Scott and hos crew for many years. They do great work!

John Balog★★★★★2 months ago

We tried rolled and blown insulation in our raised ranch attic. We then added a large whole house attic fan. Nothing helped during the hot, Raleigh summers. Two weeks ago we went to the Home show at the fairgrounds and met Shane, with MPI Foam. He explained what his company could do. Last week we had a team crawl into the attic and physically roll up and vacuum out all the insulation. This is an attic you can only crawl in, what a terrible task! They did a great job! The next day, the spray team went in and sprayed the foam, how they did it, I don’t know. The results are great. Our house is much cooler now and will be warmer this winter. Very pleased.

Jason Simpson★★★★★10 months ago

I had a small residential project about an hour east of Raleigh. These guys were great to work with. Showed up when they were supposed to, did the work quickly and efficiently, and cleaned up afterwards. Being in the construction industry myself, these are rarities to find. Scott was very informative and always answered anytime I had a question. I would highly recommend these folks to anyone needing spray foam insulation.

Insulating NC

Direct: 9197909684

5
5 Google reviews

Recent Reviews:

Tracy Houston★★★★★2 weeks ago

Very polite and quick to unload. Definitely a challenge to get backed in to there dock.

Mr. C. Wright★★★★★9 years ago

Courteous fast unloading but u will need to use your backing skills

Oleksii Gavrylov★★★★★3 years ago

They dismantle it quickly. But be prepared that docking will take time. A gentleman helped me; following his directions, I quickly docked. Thanks for your help.

Energy Saving Insulation

Direct: 9843157499

5
41 Google reviews

Recent Reviews:

Bradley Merritt★★★★★3 months ago

Oscar and his team are outstanding to work with. He was able to provide a more than fair quote from my measurements. His communication is outstanding. He provided knowledge and recommendations that made the job even better than I was expecting. The foam has reduced the temperature in the building by at least 15 degrees. The building has an exhaust fan and the amount of time the fan is running has decreased significantly after adding the foam. I highly recommend working with Oscar and his crew. They are top notch and highly competent with the foam product.

Brian Whitaker★★★★★6 months ago

Amazing, Professional, and Affordable! I have used five different spray foam contractors. These guys are the best and they take pride in the work. They treat your house like it's their house!! Highly Recommend.

KimK'sCurrency★★★★★9 months ago

I had Oscar and his crew do a open cell spray foam on my attic space project and it turned out wonderful. They did a awesome job with pricing, quality, cleanup and great communication. I will definitely be using your service again for future projects. Thanks Oscar to you and your team job well done! 💯

Raleigh Excel Spray Foam Insulation

Specialist

Direct: 9193019435

4.4
5 Google reviews

Recent Reviews:

McIver Rubin★★★★★a year ago

I had Raleigh Excel install closed-cell spray foam in my home, and the experience was top-notch. They were prompt, knowledgeable, and got the job done efficiently. My house now feels more comfortable, and my energy bills have gone down. Highly recommend their services.

Customized Granite An Repairs★★★★★5 months ago

Very nice easy to navigate website

Marissa Harris★★★★★9 months ago

Raleigh Excel Spray Foam Insulation provides excellent services.

Live Green Inc.

Direct: 9194536411

4.4
7 Google reviews

Recent Reviews:

Karen Wright★★★★★2 weeks ago

My husband and I had several quotes from different companies. Live Green was by far so much more fairly priced. We had our crawlspace encapsulated. The work was done in a timely manner and was done well. Brian was absolutely wonderful to work with and he was easy to communicate with. He always answered all my questions and returned my calls. I highly recommend Live Green. Hopefully Live Green will not raise their prices and continue to a great job like they did for me.

Joey Brown★★★★★a month ago

Great experience with the Live Green staff. Everything was great starting with Matt from sales listening and understanding what our problems were so he could come up with a solution. Got a quote same day and was the best we got. Scheduling the job was quick and seamless and they had availability in just a couple of days. Crew came out and were insightful and knowledgeable about what they were here to fix and how to fix it. The crew lead, Ivan, has ton of experience and made me feel at ease with everything. Between Matt (sales), Ivan (crew) , and Jules (scheduling) I will be calling them again with any of my insulation needs in the future!

Jordyne Krumroy★★★★★4 weeks ago

I can’t say enough wonderful things about this company! First, their price was unbeatable (we got five quotes). Second, their commitment to customer satisfaction was truly exceptional. We hired them to encapsulate our crawlspace—they installed a new vapor barrier, removed the old floor insulation, added foam board on the walls, installed a dehumidifier, and more. When the dehumidifier produced a slight humming sound, the owner came out multiple times to make sure it wasn’t bothering us. They even added extra insulation to reduce the noise—at no additional cost. It’s rare to find a company that combines great pricing with outstanding service. I give them an A++ and would recommend them without hesitation!

Home Shield Insulation of Raleigh

Direct: 2525842611

4.4
10 Google reviews

Recent Reviews:

Marie Richters★★★★★3 weeks ago

Our family cannot be happier with the project Home Shield Insulation did for us. From the very beginning of our complimentary quote to project completion, this company is impressive! We have a 2023 build but still experienced issues with the "barely passing code" quality of builder grade insulation in our unused attic space which affected every inch of our usable, livable space. First, HSI removed old insulation. Then, HSI did a thorough job to seal around all light fixtures, bathroom vents, air system ducts, and any other gaps they found. Finally, HSI added 14 inches of blown in cellulose with minimal mess but a thoughtful cleanup. It was a big, 1-day project, and the crew was productive and professional the whole day. We started feeling our home be more energy efficient that same night!

louken Jean-Baptiste★★★★★3 weeks ago

I cannot recommend Home Shield Insulation of Raleigh enough. We recently had them insulate our attic with new cellulose R44, and the difference was felt immediately. Rooms that used to be drafty and cold are now consistently warm. The process was seamless from start to finish. Our project manager, Silas, took the time to explain the actual science behind the insulation and gave us a clear timeline of what to expect. On the day of the install, Antonio and his crew arrived on time (around 8:30 am) and worked efficiently until 1:00 pm. They were professional, kept the workspace clean, and did a fantastic job. If you want a company that is informative and delivers high-quality work, give them a call!

Amy Boyette★★★★★a month ago

I could not be any happier w/ Home Shield Insulation! From the beginning meeting to get a quote for my attic re-insulation through project completion I was communicated with thoroughly about each step. The crew was amazing and efficient. Highly recommend this company!

General NC Insulation LLC

Direct: 9193225727

4.3
6 Google reviews

Recent Reviews:

MICHAEL PHILLIPS, CPA★★★★★a month ago

Martin Martinez, Estiven Melgar, Grease Melgar and their entire team did a superior job on the spray form in my attic roof and attic walls. First and only estimate that I received. No need to waste my time getting more estimates after their quote. They came out the same week and did the entire job in a long 12 hour day. Nice cleanup in the attic and even vacuumed the grass area outside once they finished. A superior work quality and work ethic. A +++ to their entire team. I highly recommend General NC Insulation LLC for all your spray foam needs. A ++++++ I would hire again for other houses with no hesitation. A+++++

Andrea Flores★★★★★a month ago

Estiven and Martin were great to work with, had my attic and second floor walls done with spray foam and they encapsulated my crawlspace too. Left everything clean. would recommend.

briangy lazaro★★★★★10 months ago

General nc insulation has now spray foamed our current home as well as our previous home. The AC in our upstairs could not keep up during 90+ degree days. Insulation solved the problem. Hhey are very professional to work with and they did a great job. Definitely recommend.

EcoMaster Insulation Contractors and Home Performance Experts

Direct: 8007046156

4.2
5 Google reviews

Recent Reviews:

Steve Braun★★★★★5 years ago

I needed four services from EcoMaster: 1) install insulation on the rim joist of the crawlspace so that our encapsulated crawlspace would pass inspection, 2) install a crawlspace dehumidifier and 3) install the dehumidifier controller in the living space of our home. From my first meeting with Jonathan, I felt confident about EcoMaster. The crew that installed the insulation on the rim joist did a superb job. It passed inspection on the first try. EcoMaster provided one of the best rated crawlspace dehumidifiers on the market which I had extensively researched. They installed and set up the dehumidifier which is working properly now some months later. Danielle in the office always responds in a timely manner. If I were to need more work of the type EcoMaster offers, I would definitely use them again.

Chrys Browne★★★★★7 years ago

Jonathan and his crews did a great job sealing and insulating my OLD attic. They did an energy audit pre- and post- improvements and WHAT A DIFFERENCE!! They also cleared out my crawlspace and completely replaced the vapor barrier. They worked diligently without taking breaks. Even though the job took longer than expected (as is often the case with older houses) they maintained their composure and provided high quality work. I'm extremely pleased with their work and would highly recommend them.

David Martin Ungaro★★★★★8 years ago

John, and his team did an outstanding job with the full attic encapsulation at my house. We chose the spray-foam application and it's made a huge difference in the comfort of the home. The EcoMaster team was consistently responsive in pre-contract questions over the phone and email, responding quickly and completely offering all the information we needed. During the job they were always on-time, courteous, and extremely professional. They cleaned up well after themselves and made sure the job was done RIGHT. When there was a minor issue they encountered, they resolved it promptly without me having to say a word. I definitely recommend EcoMaster. They did a great job for us.

Tri-City Insulation

Direct: 9197909684

3.3
6 Google reviews

Recent Reviews:

Thomas Anania★★★★★11 months ago

Dave and the team were easy to work with, responsive with questions and timely with their completion of the project. They installed the glass shower enclosure quickly and at an excellent price as well. Would use them again in the future and would recommend them for friends and family!

Austin Jackson★★★★★3 months ago

Tri City did a great job on our attic. They showed up on time, put down plastic and protective measures, and were finished quickly. The installation team asked me to check their work and made some final touch ups and were done quickly! Great experience all around.

Fa Trueblood★★★★★2 years ago

Had spray foam and crawlspace plastic installed. Worked with Brian and Nathan. Both were great to work with. Plenty of communication back and forth. Nathan did a really nice job cutting in the plastic around the piers. Would recommend them.

Frequently Asked Questions — Spray Foam Insulation in Raleigh

Is spray foam insulation a good investment in Raleigh?
For homes in mixed-humid climates like Raleigh, NC, spray foam is typically an excellent investment. The combination of hot summers, cold winters, and significant humidity means your home faces insulation challenges year-round. Spray foam addresses all three — providing thermal insulation in both seasons while controlling moisture infiltration. Most homeowners in NC see payback periods of 4–7 years. As with any tight building envelope, ensure your home has adequate mechanical ventilation to manage interior moisture.
How does humidity affect spray foam insulation performance in Raleigh?
In mixed-humid climates like Raleigh, NC, moisture management is as important as thermal performance. Closed-cell spray foam acts as a Class II vapor retarder, preventing moisture from infiltrating walls and attics where it causes mold and structural damage. This dual function — insulation plus moisture control — is why spray foam outperforms traditional insulation options in NC's climate. However, because the building envelope becomes tightly sealed, proper mechanical ventilation is strongly recommended to allow interior moisture from daily activities to escape without losing 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.