Spray Foam Insulation in Southport, NC

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

Compare 4 verified spray foam insulation contractors serving Southport, North Carolina, backed by 442 customer reviews averaging 4.9★. Whether you're insulating a new build, retrofitting an existing home, or upgrading attic and crawl-space insulation, these pre-screened Southport contractors handle both open-cell and closed-cell spray foam. Homeowners here typically cut energy bills by around 33% — get free quotes and read verified reviews below.

💰 Spray Foam Savings Calculator for Southport

Homes in Southport typically cut energy use by 28%–38% with spray foam. Change the numbers below to fit your home.

Foam type
$1,426
Estimated annual savings
At about 33% off your energy bill
$5,100–$8,200
Rough install cost
Attic roofline, about 5.5" of open cell
4–6 years
Estimated payback
Install cost ÷ annual savings

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

Verified Contractors in Southport

Certified Spray Foam

🏆Certified Pro

Direct: (910) 660-3335

4.9⭐
51 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!!

4.9⭐
204 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!!

4.9⭐
144 Google reviews

Recent Reviews:

rita grayson★★★★★2 months ago

Amazing! I can’t say enough about how great the team was! We’d had a previous encapsulation done by another company and weren’t happy with the work. We did some research and found Crawlspace Ninja and gave them a call. I initially spoke with Jennifer- she was knowledgeable, answered my initial questions, scheduled Mike to come out right away, and as a follow up to our convo she sent me a link to their educational videos! Mike came out, and even took the time to crawl under the house with my husband to explain the services they could provide. Afterwards, Mike handed us off to Steven (whose team did the work) via a face-to-face meeting and walked us through what to expect. Mike and Steven both reached out weekly prior to beginning the project to check in. Once the work started - Steven, Cameron, Matt and Caroline delivered superior service! Each morning they arrived on time and meet me at the door to walk me through what they yAmazing! I can’t say enough about how great the team was! We’d had a previous encapsulation done by another company and weren’t happy with the work. We did some research and found Crawlspace Ninja and gave them a call. I initially spoke with Jennifer- she was knowledgeable, answered my initial questions, scheduled Mike to come out right away, and as a follow up to our convo she sent me a link to their educational videos! Mike came out, and even took the time to crawl under the house with my husband to explain the services they could provide. Afterwards, Mike handed us off to Steven (whose team did the work) via a face-to-face meeting and walked us through what to expect. Mike and Steven both reached out weekly prior to beginning the project to check in. Once the work started - Steven, Cameron, Matt and Caroline delivered superior service! Each morning they arrived on time and met me at the door to walk me through what they had planned for the day and what time they’d wrap up. Each evening they’d meet me at the door again - to tell me what they’d gotten done, what they’d be doing the next day, what time they’d get started, and answer any questions I had. Once the job was complete - Steven took the time to crawl the space with my husband to ensure that all work on the final checklist was complete and met our expectations. You just don’t get this kind of service these days. They truly exceeded our expectations. Highly recommend them - trustworthy, great communication and high quality workmanship!

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!

CEC Spray Foam

🏆Certified Pro

Direct: (910) 830-8530

4.9⭐
43 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.

Frequently Asked Questions — Spray Foam Insulation in Southport

These are the questions Southport homeowners ask most about spray foam cost, R-value, and open- vs. closed-cell foam — with context for local pricing and roughly 33% typical energy savings. Compare the 4 verified Southport contractors above for exact quotes.

Is spray foam insulation a good investment in Southport?▼
For homes in mixed-humid climates like Southport, 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 Southport?▼
In mixed-humid climates like Southport, 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 in Southport, NC?▼
In Southport, NC and the surrounding area, spray foam insulation typically costs $1.00–$3.00 per square foot installed, depending on the type and your home's specifics. Open-cell foam runs $0.44–$0.65 per board foot, while closed-cell foam costs $1.00–$2.00 per board foot. A typical 2,000 sq ft home attic in Southport costs $2,000–$6,000. Most Southport homeowners recoup this investment within 3–7 years through energy savings of 15–35% annually.
What is the difference between open-cell and closed-cell spray foam?▼
Open-cell spray foam is softer, less dense, and less expensive. It expands significantly and is ideal for interior walls, attics, and soundproofing. Closed-cell spray foam is denser, stronger, and provides a moisture barrier — making it better for exterior applications, crawl spaces, and areas prone to flooding or humidity. Closed-cell also has a higher R-value per inch (R-6 to R-7 vs R-3.5 to R-4 for open-cell). One key difference: open-cell foam allows some vapor movement, while closed-cell acts as a vapor barrier — an important consideration for your home's ventilation needs.
How long does spray foam insulation last?▼
Spray foam insulation is one of the most durable insulation options available, with a lifespan of 80+ years when properly installed. Unlike fiberglass batting which can sag and settle over time, spray foam maintains its shape and insulating properties indefinitely. It will typically outlast the building it is installed in.
How do I find a qualified spray foam insulation contractor in Southport, NC?▼
When searching for a spray foam contractor in Southport, NC, look for ones who are licensed, insured, and have verifiable reviews. Spray foam requires specialized equipment and training — improper installation can cause off-gassing, adhesion failure, or fire hazards. Ask for references, verify their insurance, and get at least 2–3 quotes. A qualified Southport contractor will also assess your home's ventilation needs — a tightly sealed spray foam installation requires adequate mechanical ventilation to prevent moisture and indoor air quality issues. FoamMatch pre-screens all listed contractors in Southport 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.

Spray Foam Contractors Near Southport, NC

Not finding the right fit in Southport? Many spray foam contractors travel to nearby towns. These communities within about 60 miles all have verified contractors listed.