Spray Foam Insulation in Winston-Salem, NC

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

Compare 7 verified spray foam insulation contractors serving Winston-Salem, North Carolina, backed by 182 customer reviews averaging 4.1★. Whether you're insulating a new build, retrofitting an existing home, or upgrading attic and crawl-space insulation, these pre-screened Winston-Salem 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 Winston-Salem

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 Winston-Salem

5⭐
17 Google reviews
4.9⭐
45 Google reviews

Recent Reviews:

Joe Hampel★★★★★a week ago

Had groundhog come out and fill up our attic insulation due to it being low after finding them through a duke energy program. They were easy to talk to and explain all the things to be done, and what would or wouldn't qualify for the program through duke. They came out quickly to give an estimate and the work was done quickly and cleanly within a week of accepting the estimate. Can already notice the difference in efficiency in our home. Overall great experience.

Rob Arnett★★★★★a month ago

I found out about Groundhog Insulation through Duke Energy. Their team did a very thorough job of looking over our situation, and gave us a great quote for air sealing and insulation the attic and our garage. Kevin and his crew did a great job, showed up on time and cleaned up well. I'm very pleased with the job they did!

Regg Stocks★★★★★a month ago

First and foremost Kevin and the other gentleman were On Time! Nowadays our time is so valuable, so this was greatly appreciated. Something else I appreciated was how professional and mannerly all of the gentlemen were. I observed all of these things before they did any work. So this really put both me and my wife at ease. They performed an assessment, provided a quote and then gave us time they could come back. Again, when they came back, they were On Time. The repaired/replace our basement insulation. Kevin explained exactly what they were going to do and, the job done, was of the highest quality. I will not hesitate to call them again and neither should you.

4.9⭐
64 Google reviews

Recent Reviews:

B Sargent★★★★★2 weeks ago

Great Job ! By participating in Duke Energy program connecting to contractors, we connected with USA insulations. Justin came out for estimate. We chose USA Insulations from the 3 contractors that responded from Duke Energy, they gave us the best pricing & quickly scheduled the job. Their team was great, prompt, done in few hours, cleaned up and walked us thru what they did, double checked work making sure we were happy& satisfied at every step. David followed up with us to make sure all was good as well. All the crew & office personnel were great, very polite, knowledgeable & helpful. We are enjoying the improvements & would recommend using USA Insulation. Thank you USA Insulation !!.

Tony Hyatt★★★★★a month ago

This company was great to work with and they done everything they said they would do. We call and in a couple days Jason came out look around told us what we need and he even compared a few different opinions. The team of Todd ,Raheem and Greg were easy to work with and very well mannered. These guys don't waste anything they finished my house in 1 and 3/4 days. They put all vinyl back and cleaned up what little mess that was made. We r one happy customer and would recommend this company to do your inslation work.

Linda Annas★★★★★a month ago

We needed to insulate a 75 year old farmhouse in the mountains. USA Insulation worked with us to find the best options, including using injection foam insulation in the outside walls. They were professional, friendly and pleasant to work with. They explained not only what they were doing, but also why they were using that method & materials. They also traveled 2 hours each way to provide their services when other companies told us it was not possible to insulate outside walls that old without removing the inside walls then replacing them. We are extremely satisfied with this company, their crew members, and the finished project.

4.6⭐
29 Google reviews

Recent Reviews:

Jennifer Howard★★★★★a month ago

They did a great job! Instillation was done professionally. They were on time and efficient. Highly recommend.

Julian Sparks, Jr.★★★★★2 years ago

The guys did an exemplary job in my attic! I was nowhere up to code regarding my insulation so really glad the team was able to bring me to the standard! They were fast, efficient and offered additional service to make insulation going forward, not a huge issue. Would recommend and call these guys 10/10 for any future projects regarding insulation or ventilation.

Tricia Gladstone★★★★★2 years ago

From estimate to installation- Green Planet was professional and provided exceptional service! The estimate and explanation of services from Lee was thorough and the company prides themselves on following up-to-date building codes. They re-insulated our attic and installed an attic tent and even assisted us with getting a great rebate through Duke Energy. The owner, Chris, was very communicative and his workers were respectful of our property. Not only was the service great, our house has been so much warmer! We highly recommend Green Planet for your insulation needs!

4.6⭐
19 Google reviews

Recent Reviews:

Spencer Pate★★★★★4 years ago

I was having trouble getting anyone to call me back much less come out and give me a bid on my personal home. Mckinney came out the next day after I called them and did the install the following day. Great Job Great Service

Colby Solomon★★★★★4 years ago

McKinney insulation was awesome, I called on a Sunday and their sales guy happily drove across town to take a look at my attic, gave me a quote, Absolutely squashed the competition in terms of affordability, showed up on time and got everything taken care of in less than two hours! Absolutely a great value, and the difference in once in the house is incredible!

Renee Ross★★★★★6 years ago

Rick McKinney and McKinney Insulation did an excellent job insulating my home. Rick is professional, courteous and knowledgeable. They have been in business 38+ years. Rick also got me Duke Energy’s $250 rebate for upgrading the insulation in my attic. My electric bill was cut by 60% after the insulation upgrade. If you are considering lowering your electric bill or insulating a new home I highly recommend Rick McKinney at McKinney Insulation.

Direct: (336) 661-7800

4⭐
7 Google reviews

Recent Reviews:

Bryan Beisner★★★★★2 years ago

Guys did great job in a timely fashion, I highly recommend them !

Jesse Levy★★★★★9 months ago

I met with Steve, who is very down to earth and shoots you straight, and he estimated blown-in insulation for my house and under floor insulation for my crawl space. He scheduled the installation and a VERY professional crew came out and did the work. They were very thorough and we have seen an instant difference in the comfort of our home. I would highly recommend Steve and IBBI!

David Neubauer★★★★★a year ago

Mario insulated my crawlspace and laid down a vapor barrier. I was totally pleased with his work. Wish I could adopt him. Received very good communication with Johnny. Overall I am extremely pleased with the job they did.

1⭐
1 Google reviews

Recent Reviews:

John Loftus★7 years ago

PLEASE do not work with Leo or this company. He is a crook. He took our deposit, begged for money up front, showed us a sample of 3.5 inch foam and sprayed half an inch. Left the job site and never returned. When we called he came up with excuses such as “I’m out of town and will call you Wednesday”-never did or “my son was in a car accident, I’ll call you next week”-never did. He then stopped answering our calls altogether. He has now stopped answering our calls altogether. We have built two homes and worked with over 12 contractors. I can not imagine a worse experience. This is my first time ever writing a review (positive or negative) but feel the need to warn the public about this person and experience. We are attempting to go to court but he won’t reply with his federal tax ID # or correct attorney name. This company is a complete garage.

Frequently Asked Questions — Spray Foam Insulation in Winston-Salem

These are the questions Winston-Salem 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 7 verified Winston-Salem contractors above for exact quotes.

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