Spray Foam Insulation in Wilmington, NC

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

💰 Estimated Energy Savings in Wilmington

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 Wilmington

Koala Insulation of Coastal Carolina

Direct: 9109919042

5
7 Google reviews

Recent Reviews:

Michael Scanlon★★★★★8 months ago

Rob and Chris did a great job. They installed a whole attic radiant barrier and added blown in insulation to take out attic to R38. They were efficient and clean. I highly recommend Koala insulation.

wilahinely★★★★★2 months ago

The crews that came out to insulate my attic and install my solar fan were great. Scope of work was discussed prior to it beginning and my input was solicited prior to placement of the attic fan. The crew was also very accommodating of the crowed work site as I had several trades on site at the same time. I’m very happy with the results.

D. Baker★★★★★4 months ago

Koala was professional and responsive from quote to installation! They were able to accommodate my quick timeline and the installers, Cody and Jeff, were prompt, polite and professional. They explained the process and got right to work blowing insulation into my attic. When finished, they cleaned up and showed pictures of the finished work. Highly recommend!!

Coastal Insulations

Direct: 8288517749

5
5 Google reviews

Recent Reviews:

Alex R★★★★★a year ago

Jack did a great job replacing the insulation in my crawlspace. He was great with communication and scheduling and made things easy. Great quality work as well. Thank you!

Brittany Nalls★★★★★5 years ago

I’d like to personal thank Jack and his crew. They came out and insulated my house after it had flooded and had lots of storm damage. Jack responded to me in a very respectable timely manner once I called and I had my free estimate for all the work that they were gonna do to my house in under 24 hours. For that I’m very grateful most other company’s told me that it would be a week to almost two weeks out. Once I received my free estimate they started work on my house the following weekend. I highly recommend coastal insulations to any everyone looking for insulation work. Thanks again Jack and your crew for all the amazing work that y’all completed for me.

Roberta Fox★★★★★5 years ago

They did our crawl space for a 6000 sf building and did an awesome job. They pulled out all the wet insulation and replaced it as well as the vapor barrier. Very good would recommend.

HDA Insulation

Direct: 9106171910

5
30 Google reviews

Recent Reviews:

Bruce★★★★★a week ago

HDA insulated my new sunroom today. Oscar and Miguel did a phenomenal job. Attention to detail was obvious. They truly care.

Kris★★★★★4 months ago

I called HDA insulation and talked to Fernando. He was very quick to schedule a quote. He priced fairly and I was very happy with the quote. He worked great with my schedule to provide an install date. His crew got there and installed very quickly and cleaned up behind their-self. Very pleased and will recommend in the future.

David Strange★★★★★a year ago

The problem I faced was that my attic was getting extremely hot during the summer, causing the A/C to run constantly. Certain bedrooms downstairs were hotter than others, and the A/C was working overtime to cool the bonus room on the second floor, which is located in the attic. I got multiple quotes and had several professionals come out to assess the situation and provide solutions. I ultimately chose Oscar and his team because they clearly explained the problem and how they would fix it. Oscar’s team installed Polyvents that ran along the entire attic, allowing cool air to flow in, circulate up the ceiling wall, and exit through the ridge vent. They also installed a radiant barrier to help keep the hot air out of the attic. This system will also help keep the bonus room warm in the winter when the heat is running. After the installation, I immediately noticed a 30-degree drop in attic temperature, and for the first time, the downstairs rooms had consistent temperatures. On top of that, the A/C wasn’t running as much, and we no longer had hot and cold spots in the house. Oscar and his team were extremely clean, organized, and went the extra mile to ensure everything was done with excellence. They saved us $12,500 compared to one of the spray foam quotes we considered. I couldn’t be happier! My A/C technician inspected the work and confirmed that Oscar’s team did an excellent job. This installation will save me money on my power bill and keep my house cool in the summer and warm in the winter. Thanks again, Oscar! ~ David Strange

Certified Spray Foam

🏆Certified Pro

Direct: 9106603335

5
5 Google reviews

Recent Reviews:

Michelle Murrell★★★★★5 years ago

We highly, highly recommend John and his crew! They are fantastic!! We had our bonus room and 2 closets sprayed. We truly believe the spray foam insulation was the best way to go. John and his Dad were an absolute pleasure to work with to get the estimate and project scheduled. John answered all of our questions thoroughly and with much enthusiasm and reassurance. He was such a pleasure to talk to and work with. Everything was fully explained and John made us feel very confident in the process. They prepared all spaces very thoroughly and protected everything extremely well. We have a very expensive floor in our bonus room and John assured us it would be protected and it certainly was. Everything was cleaned up in all spaces as if they were never there. This family owned business is prompt, professional and outstanding. We are thrilled that we decided to go this route with our spaces. I am not one to write many reviews but we would not have wanted anyone else to do this for us.

Nate Evans★★★★★a year ago

Big shout out and recommendation for Certified Foam out of Southport! They just finished spraying the roof insulation on our Barndominium we are building outside of Shallotte. Pat and Richard did an incredible job. Communicated well and kept us informed throughout the process. If you or anyone you know is needing insulation work, call Pat and get his opinion and quote!

Jo Jo Tucker★★★★★4 years ago

WOW… What a night and day difference!!! Had we known of spray foam, this is something we would have done when we first purchased our home!! It’s 88 degrees outside and our attic (with no air, windows open or even a fan) is only 77 degrees… absolutely amazing!! Pat went above and beyond in helping us make the decision to take on this project(our attic is almost 1000 sq ft)!! He came through on every thing he said he would and more!! His side kick Richard, was the kindest, hardworking and funniest man… such a blessing!!! We can’t say enough good things about this company and this product!! Next will be re-doing our crawl space 😉 Thanks Pat, the Tuckers love you!!

Brunswick Insulation Inc

Direct: 9104527335

5
2 Google reviews

Recent Reviews:

Gary Lewis★★★★★5 years ago

Great customer service!

Brittany Castillo★★★★★12 months ago

Crawl Space Ninja of Wilmington

Direct: 9105991775

4.9
125 Google reviews

Recent Reviews:

Michael Wise★★★★★a month ago

Well, to start it all off, Mike Stutzenburg, first point of contact to come to my home and take a look. I must say what an amazing well rounded down to earth guy, he immediately gathered his info from the visit, presented me with options for each individual problem I had that he found under my home. He gave me the knowledge needed to move forward with the necessary repairs to my crawlspace and let me decide what was best for me rather than the feeling of being pushed or forced. I appreciate that deeply. Next comes Steven Malpass, this Ninja knows his crawlspaces, brings so much motivation and willingness to share and keep me engaged in the process. He patiently awaits until the time is right to make sure each phase goes as should. Jennifer Malpass for being on point with office work and invoicing. Also would like to give a Big Shout out to Cameron and Matt, as they were the main ones here for my encap and blast. Cameron you were professional, punctual, and communicated the entire 3 day process so well. Matt great job being here with Cam on this project. You two were truly the best chosen to do my Crawlspace. Jayden/Jaden thanks also for coming by when needed to assist Cam and Matt. A huge thanks to all of you guys who make a great team! The process was smooth from start to finish and any accomodations I had were met no hesitations.

BC Anderson★★★★★a month ago

Crawl Space Ninja have been an absolute pleasure to work with. Their professionalism and expertise along with their technology they bring to the table - sets them leaps and bounds above others. The team is always punctual, communicative, and respectful. I highly recommend them for any crawl space-related tasks. They truly exceeded our expectations and will make the process stress-free!

Johnson Legal PLLC★★★★★a month ago

Talked with several crawl space companies, and priced them along the way. Crawl Space Ninja has reasonable pricing, has a competent and friendly staff, and delivered a wonderful end product. The crawl space is so nice, I could move down there! Its clean! Thank you CSN!

CEC Spray Foam

🏆Certified Pro

Direct: 9108308530

4.9
37 Google reviews

Recent Reviews:

Ciarra Powell★★★★★2 months ago

CEC Spray Foam did an amazing job! From start to finish, the team was professional, on time, and very knowledgeable about the whole insulation process. They explained everything clearly, worked quickly, and left the area spotless when they were done. The difference in comfort and energy efficiency was noticeable right away. I highly recommend CEC Spray Foam to anyone looking for quality work and great customer service!

Splitwire Ferilla★★★★★2 months ago

Mitch came out and gave me a fair price and was very easy to talk to. The process was the most painless home improvement I have ever done. Mitch showed up on the time, did the job in a quick, efficient manor, and cleaned up magnificently. I will recommend Mitch and CEC Spray Foam to every homeowner looking to further insulate their home in these unforgiving coastal conditions. Thanks Mitch!!

Philip Montero★★★★★5 months ago

Had a really good experience with CEC Spray Foam. The team was easy to work with and knew what they were doing. We went with spray foam insulation for our place, and it's made a noticeable difference — the house feels more comfortable, and we've seen some savings on our energy bill too. Would definitely recommend them to others.

Cape Fear Foam - Spray Foam Insulation

Specialist

Direct: 9102311969

4.2
5 Google reviews

Recent Reviews:

Rakib Islam★★★★★6 months ago

First and foremost, I want to say THANK YOU to the Eco Tec team. Such a pleasure from start to finish with their work on insulating my attic.

Phil Cross★★★★★3 years ago

Awesome service, they fit me into their schedule on short notice for a smaller job… in and out in under an hour, very informative and professional service. They have top-notch equipment.

Paul Susie★★★★★3 years ago

Steve was awesome from start to finish. Told us exactly what to expect and delivered just that. If you need attic closed cell spray foam or any other service they perform you can not go wrong! His son Brian led the crew and was professional from start to finish. A job well done!

Blown-Rite Insulation and Gutters LLC.

Direct: 9103924450

3.4
5 Google reviews

Recent Reviews:

Perry Lewis★★★★★8 years ago

We had gutters installed by Blown Rite and Kris was on top of it! Personal and professional, work was completed quickly and we are very pleased with the finished product. I work in the construction industry and know how hectic it can be, they made us feel like we really mattered. We would recommend them to all my family and friends.

Jim Wolfe★★★★★6 years ago

We added oversized gutters and gutter guards based on their recommendation. They also added insulation to our attic. The products delivered are outstanding; service was excellent; and the people are super professional and efficient. Both jobs were completed quickly and when finished they took all the trash with them. Their pricing is extremely fair. If you need gutters and/or insulation you don’t need to look further. Blown-Rite for insulation and gutters get 10 out of 10 stars from us. Thank you Kris and Blown-Rite.

Debbie Wood★★★★★5 years ago

We are very satisfied with Kris and this company. Kris is great with estimates, very afforable. Workers were professional and on time with doing our insulation. My husband and I highly recommend Blown Rite.

All About Energy Solutions

Direct: 9102530170

3.1
8 Google reviews

Recent Reviews:

Howard Ferguson★★★★★a month ago

They were great! Did a very thorough job of insulating the attic - in compliance with Duke Energy rebate plan. They were thorough but quick, better than the other 3 companies using more insulation than the others and at a lower price even though they provided radiant heat barriers for all knee wall and attic access doors. Communication was excellent with them and they handled all forms needed by Duke for getting my rebate.

Jeffrey Innes★★★★★6 months ago

Chris and company helped us out when we first moved here in 2013. Installed energy efficient wrap in the attic. Over next few years All About Energy Solutions has installed energy efficient lighting, protective wrap in crawl space, and extra insulation in attic. Chris and crew are knowledgeable professionals. They stand behind their products and have repaired or adjusted what they installed without any extra charge.

Brec Connett★★★★★a week ago

A few months ago, we started to smell a musty odor in our house. I had a handful of contractors look at the crawl space to determine the source of the smell. One heating and air company said I needed all new duct work. Another said I did not need any duct work replaced. I had three insulation companies look at it and it turns out the smell was coming from some wet insulation caused by a since-replaced water heater. Chris also noted some evidence of past animal activity under the house which also led to some of the smell. Chris suggested I replace the insulation, fog the crawlspace with a disenfectant and add a new vapor barrier. So far that approach seems to have done the trick. His estimate seemed fair for the scope of work proposed. I want to commend Tammy for her good communication skills and his crew of Terrance and Canaan. They were professional and courteous. I would recommend All About Energy Solutions to my friends and family.

Tricoast Insulation

Direct: 9108599028

United Insulation

Direct: 9103956851

Frequently Asked Questions — Spray Foam Insulation in Wilmington

Is spray foam insulation a good investment in Wilmington?
For homes in mixed-humid climates like Wilmington, 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 Wilmington?
In mixed-humid climates like Wilmington, 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.