Spray Foam Insulation in Apex, NC

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

Compare 9 verified spray foam insulation contractors serving Apex, North Carolina, backed by 738 customer reviews averaging 4.6★. Whether you're insulating a new build, retrofitting an existing home, or upgrading attic and crawl-space insulation, these pre-screened Apex 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.

💰 Estimated Energy Savings in Apex

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 Apex

5⭐
30 Google reviews

Recent Reviews:

Darren Jeffers★★★★★12 months ago

Positive Energy has been a great company to work with. Our home (1950s house) had ZERO insulation in our attic space. Dewitt came out to our house, evaluated the attic, and explained everything he recommended very well. He made things easy to understand and was very straightforward regarding his recommendations and pricing. What we paid was more than fair and the work they did was excellent. They cleaned up well afterwards and were respectful of our whole home. We noticed an immediate difference in the comfort level upstairs, and are now reaping the energy benefits as winter has set in. Overall, very pleased and would highly recommend PENC for all insulating needs!

Ashley Woodman★★★★★2 years ago

Could not recommend PENC enough!! Dewitt and Karen were awesome. They took the time to explain multiple different options of spray foam, coatings, and colors. They worked through my building size changes - several times. And they explained how each would work, what goes into it, (even did a cool fire demo). I feel like I actually KNOW about the product I had installed. The crew was quick, efficient, and clean!! Beyond happy with the finished product. Highly highly recommend PENC for any insulation needs!

D C★★★★★4 months ago

I recently hired Positive Energy of North Carolina to encapsulate my home's attic and crawl space with spray foam insulation. DeWitt promptly responded to my query to inspect my house and provide a competitive estimate. Once the deposit was paid, Dewitt promptly did the job and dramatically improved my home's comfort. Dewitt has a deep knowledge of home performance and building science. If the need arises, I will again hire Positive Energy of North Carolina.

4.9⭐
60 Google reviews

Recent Reviews:

K Sickle★★★★★a month ago

I could not be happier with this crew. Highly recommend them! Sprayed a large metal building for me. I definitely got more foam than I paid for. I did my research and got several quotes. ESI was traveling from far away and still reasonably priced. They answered all my questions and even showed me how it all worked. The application is smoother than any other jobs I’ve seen. They truly care about their quality of work. Thanks again guys!

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.

4.9⭐
324 Google reviews

Recent Reviews:

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.

David Lee★★★★★2 weeks ago

Wow. Excellent service throughout the entire process. Ryo, Miles and his team were sincere, thoughtful, honest, and did a fantastic job. The difference is like night and day after the injection spray foam and attic insulation completion. It is now warm and cozy with no air draft. Exterior noise has greatly been decreased. I am certain it will be cooler and more comfortable when warm weather comes this spring and summer. My HVAC cycles on way less and for a shorter period of time. Thanks again Ryo, Miles and your crew. USA Insulation is the best.

Jon Hunter★★★★★2 weeks ago

My home is cleaner than when they arrived! Miles arrived and got right to it. He removed all the old and dated insulation and filled our split level home with the good stuff. The crew was prompt, professional, and took great care while inside my home. They're welcome again, anytime!

Recent Reviews:

Terri Miller★★★★★3 months ago

Tony and his crew from Insulation Commandos transformed my crawl space from a scary mess into something far cleaner, more organized, and much more effective for moisture control. They worked around my schedule, arrived exactly when they said they would, and used high-quality materials to get the job done right—in just one day. The improvement is so impressive, I might even be brave enough to step inside someday! I highly recommend Tony and the team at Insulation Commandos for their professionalism, efficiency, and quality work.

Kevin L★★★★★4 months ago

Had the plastic sheets on our crawl space dirt floor replaced and upgraded with new, thicker, better vapor barrier that is sealed to walls and pillars. Also added a commercial dehumidifier to address summertime dampness. Tony’s team of Chris, Patrick and Parker were here for about 8 hours. I inspected at completion and they immediately took care of a few issues. Looking forward to reorganizing and using my dry, clean new looking crawl space for storage. Thanks guys!

Mike Brackett★★★★★a week ago

We recently solicited several estimates for sealing our attic and upgrading the insulation. After careful consideration, we ultimately did not chose to go with Insulation Commandos of Raleigh-Durham but we felt compelled to leave them a glowing reference based on our interactions with Chris. Chris, came to our home and gave us an honest and complete assessment of our attic and provided us a very competitive quotation while he was here. In addition, he answered all of our questions and we felt that he was very honest and straightforward. We feel Chris is someone you can trust in this industry. As mentioned earlier, we ultimately chose another company because we felt that it better addressed our particular needs but these folks were a very close second. We would have no hesitation in recommending Insulation Commandos to anyone in need of an attic insulation upgrade.

4.8⭐
68 Google reviews

Recent Reviews:

Jennie Jones★★★★★2 weeks ago

Antonio did an excellent job on the blown in cellulous installation. He was professional in explaining what he would be doing and showed pictures each step were done. He cleaned debris after completing the job. Thanks Home Shield for your service

Luke Lenzen★★★★★2 months ago

Home Shield came and removed my original 1994 insulation which was missing, compressed, or not enough. It was a combination of bats and blown in fiberglass that was

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!

4.8⭐
20 Google reviews

Recent Reviews:

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.

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+++++

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.

4.8⭐
107 Google reviews

Recent Reviews:

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!

Sara Victoria★★★★★a year ago

We wanted to seal the crawlspace of our new house in September, and I contacted five different companies to come out and give me quotes. There are a variety of techniques out there (encapsulated, HVAC open/closed, dehumidifier or not, etc) which was difficult to navigate. Chris from Livegreen came out and explained their process thoroughly yet simply, sharing pictures of what to expect as he explained. As well as being the most competitive price, we decided that the Livegreen method sounded like the one with the least amount of hassle/maintenance (no dehumidifier maintenance). The week before we moved in, Livegreen came by and cleaned out the crawlspace and sealed it. The team was professional and friendly and did a fantastic job. The crawlspace looks great and 3+ months on we are very happy with it. It is so nice to have a clean, sealed space under the house if you have the unfortunate need to go crawling around in there (our plumbers were very happy too). It supposedly helps with electricity bills as well, but of course we have no prior bills to compare it to. Nonetheless, we happily recommend the Livegreen team!

J Taylor★★★★★5 months ago

Chris from Live Green just came out to inspect my crawl space. I was sure it had mold and standing water (as another company told me last week). Chris said he found no mold, no water. He talked with me at length and said that our home does not need work in the crawl space. He was the most honest, knowledgeable, helpful person. Use this company. Tell your friends!

4.1⭐
11 Google reviews

Recent Reviews:

Shannon H★★★★★12 years ago

Masco/Eastern Insulation did a great job with the installation of my addtional attic insulation. They were very courteous and professional, great prices and friendly staff. Extra thanks to our rep, Cydney Graham. I would recommend them to my friends and neighbors for all their insulation needs.

Tami Potirala★★★★★4 years ago

Nice people. Unloaded pretty quickly. Only unload at night but you can park here if you need to

Jon Parsons★★★★★2 years ago

Fast unload

3.3⭐
44 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 Apex

These are the questions Apex 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 9 verified Apex contractors above for exact quotes.

Is spray foam insulation a good investment in Apex?▼
For homes in mixed-humid climates like Apex, 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 Apex?▼
In mixed-humid climates like Apex, 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 Apex, NC?▼
In Apex, 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 Apex costs $2,000–$6,000. Most Apex 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 Apex, NC?▼
When searching for a spray foam contractor in Apex, 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 Apex 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 Apex 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.