Spray Foam Insulation in Maryville, TN

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

Compare 8 verified spray foam insulation contractors serving Maryville, Tennessee, backed by 1,153 customer reviews averaging 4.5★. Whether you're insulating a new build, retrofitting an existing home, or upgrading attic and crawl-space insulation, these pre-screened Maryville 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 Maryville

Homes in Maryville 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 Maryville

Recent Reviews:

Bob Golden★★★★★2 weeks ago

Koala Insulation gave me a great price and great service for adding insulation to my attic. I got 4 other quotes and theirs was the best. I worked with Bob on the estimate and scheduling. He was very professional. The crew (Dylan and Woody) provided friendly and excellent service. They called before arriving, were on time and got right to work. They were done in just over an hour. Afterwards, they showed me numerous pics of my attic with the R-60 level of insulation. I am very satisfied and look forward to saving on my energy bills.

Michael Foy★★★★★a month ago

Great response and communication every step of the way from estimate to the scope of work. Even on call backs for new request items the work was completed at god speed with quality and attention to detail. I also wasn’t paid for this review like most companies do now.

Chris Galyon★★★★★3 months ago

Koala provided blown insulation for our entire attic and did an amazing job! They were really efficient and had the job done an hour sooner than they quoted and were extremely thorough and cleaned up everything afterwards. Great people to deal with and locally owned which is exactly what I was looking for.

4.8⭐
315 Google reviews

Recent Reviews:

Jimmy Bones★★★★★a year ago

Very professional, good experience from beginning to end. Had blown in attic insulation done at our home in Dandridge. Tony and Cruz did a great job. Definitely would recommend to my friends and family.

HORSE POWER★★★★★4 years ago

They where great to work with the did a excellent job. I had them to install spray foam insulation in my whole home along with my crawl space it was a new build . Super product, great Price and excellent service. They was in and out and ever thing was cleaned up and hauled off. The guys was very professional. Will use them again and highly recommend them.

Corey Payne★★★★★7 months ago

Top notch installer! Logan was very upfront and honest in regard to some misinformation that I had received while getting bids from other installers in the area. Griffin and David thoroughly taped off the entire area and kept my Polished Concrete Floor totally clean and free from overspray. Once completed, they did an excellent job cleaning up. I will use Accucoat again and highly recommend their services.

4.8⭐
314 Google reviews

Recent Reviews:

John Kelleher★★★★★a month ago

From the start, we received great communication, well-presented explanation of project start and completion from Shaun Lovern. The Spray Foam crew were exceptionally polite and got to work right away. The crew also communicated well regarding spray foam details in our structure. The inside of the garage and shed looks really great. I would definitely use this company again. Thanks for a job well done Knoxville Accu-Coat!

Luca Simioni★★★★★a month ago

I contacted Shaun to get some information and a quote for spray foam (metal building) and couldn’t be happier with the results. Everyone was very knowledgeable, professional and helpful. The installers, David and Grissom, did an awesome job from prep work to cleanup. I would do business with them again and recommend this company.

Daren Brauer★★★★★3 months ago

I highly recommend Accu-Coat West Jefferson for spray foam insulation as they provided a very competitive price and were willing to work with me on schedule and scope. Mike Draper and Chad Sheets were my installers and couldn't be happier with them. They started early as I was told they would and didn't waste any time prepping the site by putting up plastic sheeting while their machine is heating the components. After they were done they did a great job cleaning up taking all the plastic with them like they weren't ever there. Only evidence that they were there is a generously/evenly coated surface of spray foam. Thanks again.

4.8⭐
83 Google reviews

Recent Reviews:

William Alex Crowe★★★★★6 months ago

Best experience ever! The technicians Carrie and Ian were both courteous and professional. Carrie communicated with me the entire installation and allowed me to periodically inspect progress. They did not rush and their work was quality start to finish. Jeff, my sales rep, was responsive and competitive. Very pleased with the results and would have them back anytime.

Debra McCarter★★★★★2 months ago

We did not comparison shop so I can't say how our price compared to other companies. My husband had worked with USA insulation before and wanted to use them for our insulation project We think it was worth it. We noticed differences right away. Our house was much quieter. And everyone that we worked with was great. Big shout out to work crew because they were wonderful! The project manager kept us informed every step of the way. They were respectful, efficient and cleaned up everything. They left the property looking great.

Lou Ann Taylor★★★★★a month ago

I highly recommend USA Insulation. Jeff was the best salesman! No pressure and informative. Carrie and her team did an awesome job installing our insulation in the attic. We didn't hardly know they were here. Very considerate of our home and space. Was a good experience all around.

4.7⭐
3 Google reviews

Recent Reviews:

Dale Palmer★★★★★a year ago

Skinny road but...fast unload. Very nice friendy people, no problem, wouldn't hesitate to take them another load.

Simranjit Singh★★★★★6 months ago

Nice guys, quick unload. Small place for a semi but doable.

Scotty Mixon★★★★2 years ago

Great guys, usually have to call for them to offload.

Recent Reviews:

Lucy Shular★★★★★10 months ago

Awesome Service!! Joel was very helpful and did exactly what he told me!! Will definitely us him again!

Red “Dad”★★★★★3 years ago

Joel and his team are top notch.ive used them 2x and each time they've performed their job flawlessly. They've also not asked for any money upfront. Infact , Joel came out and looked at the job when it was done prior to asking for payment. Veteran owned and operated. I highly recommend this company to everyone.

Phillip G★★★★★a year ago

Joel and his crew did a great job and for a great price. Would definitely recommend and use for other jobs.

3.9⭐
23 Google reviews

Recent Reviews:

Jesse Glow★★★★★a year ago

Overall great experience with this company. From the salesmen, Alonzo and the office team, and all the way down to the installers, they handled the job with excellent professionalism and executed it in a very timely fashion. I would recommend the team at Dales to anyone and everyone that has residential or commercial properties that are in need.

Julie Hamlin★★★★★7 years ago

Dale’s came out as the contracted and insulated my sheshed. They did a great job. I recommend.

Diane Landers★★★★★a year ago

Excellent and timely service. I highly recommend Dale Insulation.

3.7⭐
6 Google reviews

Recent Reviews:

Colin Bartlett★★★★★a year ago

Richard Wendo Akakpo★★★★★a year ago

Nathaniel Graham★★★★★2 years ago

Frequently Asked Questions — Spray Foam Insulation in Maryville

These are the questions Maryville 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 8 verified Maryville contractors above for exact quotes.

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

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