Spray Foam Insulation in Louisville, KY

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

Compare 12 verified spray foam insulation contractors serving Louisville, Kentucky, backed by 1,563 customer reviews averaging 4.7★. Whether you're insulating a new build, retrofitting an existing home, or upgrading attic and crawl-space insulation, these pre-screened Louisville 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 Louisville

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 Louisville

5
171 Google reviews

Recent Reviews:

Damon Drake★★★★★a month ago

I have a very old house with an upstairs inside of the roof line. They worked hard to cover everything and protect everything before they started working. Foam insulation was done from three different approaches to insulate almost everything. Have them bring their thermal imaging camera and show you before and after images to see what the difference is. Great people

Peter Graham★★★★★a month ago

Elizabeth and her husband were extremely pleasant to work with and knowledgeable in the process of determining and identifying deficiencies in causing a heated attic space and offered a couple solutions to eliminate any potential problem areas. The service technicians arrived on time and quickly covered all areas where they’d be walking and pulling the insulation blower hose over with plastic sheeting. They were friendly and efficient in getting the work completed and cleaning up after their work was done. I’m looking forward to good results in eliminating ice dam build ups during snowy weather.

Debra Abukwaik★★★★★a month ago

Our condo building had to recover from a longtime attic raccoon invasion. Koala’s cleanup was amazing then they sealed up everything. Made my HVAC vents so much more efficient and I stopped heating and cooling the attic. Jairo and Geo were great and they went out of their way and fixed a vent from the inside of the condo that wasn’t attached well to the ceiling. Of course we got the 13 inches of insulation instead of the only 3 inches that we had from decades ago in our over 100 year old building. Great service!!!!

5
6 Google reviews

Recent Reviews:

Lauren Meyers★★★★★3 months ago

Weatherstop is one of the most experienced insulation companies in all of Indiana. Sam, Jesse & the entire Weatherstop team is responsive, extremely knowledgable, honest and reliable. I highly recommend them for all of your spray foam needs!

Kendall Beyerle Eads★★★★★8 months ago

Weather Stop did a great job on the spray foam insulation in our new construction build. Sam was always a call or text away if we had any questions, and he met with us at the site prior to starting the job. They showed up exactly when he said they would and had the job wrapped up by the quoted timeframe as well. Highly recommend Weather Stop!

Mahlon Penner★★★★★7 years ago

Chris and his men spray foamed my entire house a 2 story 1880 built home I am restoring the quality of the work is tops and the R value is amazing. and with a small business Chris can get you a better price than the other companies in the area I definitely recommend Weather Stop to anyone who wants a superior job at a reasonable price

5
602 Google reviews

Recent Reviews:

Brock Bittner★★★★★a week ago

Aaron was great to work with, clear communicator, and very knowledgeable. The price was also reasonable and beat another quote I got significantly. I would highly reccommend using InsulateKY.

Patrick Delaney★★★★★a week ago

Very professional and flexible with rescheduling needs. They stay up to date with latest in energy guidelines and don’t try to over sell on unnecessary services or materials. Highly recommended !

Jacob Deweese★★★★★a month ago

They were punctual with the schedule, professional, quick, very respectful of my little 7 m/o’s nap time, and very clean!! I would recommend to all my friends and family. Thank you again Aaron and Jared for you hard work!

4.9
521 Google reviews

Recent Reviews:

Mark Davis★★★★★10 months ago

What a great professional company and wonderful experience. We had looked for months to find a spray foam insulation company to insulate our forever home. We stumbled on Louisville Spray Insulation company are so happy we did. when we called we were told we were a little just outside their normal service area but they agreed to come give us a quote. Not only were they reasonable on the price but entire process from start to finish was first class. We cannot say enough good things about this company and we will forever be grateful for the professional fair service we experienced . We highly recommend Louisville Spray foam Insulation .

Tony Taylor★★★★★5 months ago

Great company! Kept me update with scheduling, arrived on time. The guys that work in the attic are incredible. Very hot, dirty job. They kept the house really clean, and went above and beyond to do the job right. Sales staff was excellent as well. Explained well, kept me inform, and want things to go perfect as well. I wound recommend them to anyone.

Brendan Bonner★★★★★2 months ago

I want to say this whole process was amazing from getting sales guy to come give me an estimate. Very thorough. Made me feel confident in them. When I got the estimate I was like in disbelief that it was reasonable price. Workers came. They immediately put tarp on my driveway to protect it before putting the truck on there. They put tarp and cardboard all over everything in the house to help protect floors and walls and household items. They all worked hard and was very polite. They asked me to look up in the attic to see how it looks. I was very pleased. I feel a big difference already my unit is not running as much and it's at temperature supervisor came around to look. Was also very knowledgeable. I would recommend this to everyone

4.9
14 Google reviews

Recent Reviews:

Keeta Shell★★★★★9 months ago

Good website layout. Perfectly describes every service tbey offer and how it will benefit me.

Pete Birmingham★★★★★a year ago

A reliable and customer focused group!

Anthony Holcomb★★★★★10 months ago

Website had lots of information about what they do Easy quotes and any and all contact information you would meed

4.8
31 Google reviews

Recent Reviews:

Michael Payne★★★★★2 months ago

These guys rock! If you want a job done right, give them a call. Their attention to detail, professionalism, and quality of work are second to none. You will not find a better team for your insulation needs. They show up, do exactly what they promise, and make the whole process easy. Highly recommend!

Tristen Campbell★★★★★2 months ago

Great crew, very affordable for what you get! I highly recommend insulating your house with USA insulation!

Tim McIntyre★★★★★a month ago

Landon and Trevor did an exceptional job installing R38 - R40 Insulation (13” - 14” )in our attic space above our garage and Mike the owner was easy to work with, listen to my concerns and made sure I was taken care of. I would HIGHLY recommend USA Insulation to anyone who needs insulation.

4.8
12 Google reviews

Recent Reviews:

Dan Carter★★★★★2 years ago

A family owned business i have been doing business qith for 45 years

Stefan Gray★★★★★a year ago

Great work. Quality well built duct.

lateron Hargrove★★★★★7 years ago

Good people and will do whatever to meet your needs.

4.8
20 Google reviews

Recent Reviews:

Tyler Daugherty★★★★★2 years ago

1st choice sprayed our entire house in open cell spray foam. Chencho and Luis were very friendly and efficient. They were on time and did exactly what they said they were going to do. They had me do a walk through when they were finished to make sure I was happy with it and I was. Overall good experience and I would recommend to anybody with insulation needs.

Amanda Vance★★★★★3 years ago

We are so pleased with how the crew at 1st Choice Insulation came out on a Saturday to insulate our entire basement in just one day! They were very clean (which can be difficult with all of the insulation fibers), courteous, and very professional! If you don’t know which insulation is best for your space, they are more than knowledgeable to help guide you in the right direction. They are honest, upfront, and won’t pressure you into a sale. We definitely recommend them for any insulation job you may have.

Kevin Brockman★★★★★8 months ago

We had Todd and crew spray foam our Barndominium last week and the attention to detail was phenomenal. The work was completed quicker than anticipated and cleanup was perfect. I would definitely suggest 1st Choice to anyone in need of spray foam insulation. Excellent company.

4.8
132 Google reviews

Recent Reviews:

Steve Delks★★★★★5 years ago

Superior Insealators is a very upstanding and reputable company. The employees are caring, conscientious, and courteous. Their work is unquestionably outstanding. We had our crawl spaces and roof line sprayed. Our heating and cooling bills have been reduced 30%... I highly recommend Superior!!! (the pictures posted are real and truthful)

John Smith★★★★★2 weeks ago

Pleased with the entire process. Sam Scott provided a great deal of technical expertise and presented several options to meet our insulation goals while staying within our budget. The crew was polite, thorough, and conscientious of keeping everything as neat and clean as possible.

ryan thornton★★★★★4 months ago

We’ve had 3 projects with Superior (exterior wall with water pipes, crawl space and attic). Juan and the Superior team were fantastic each time. Superior’s expertise and outstanding customer service were the main reasons we kept coming back. The difference with foam insulation is immediately noticeable.

4.5
26 Google reviews

Recent Reviews:

Lynn H★★★★★5 years ago

We are very pleased with Energy Savers. Our first experience with the company was in 2015 when we renovated a small home. Energy savers found and closed every possible energy leak plus we qualified for a tax break. We have just finished renovating a 3500 sq ft home, We contacted Energy Savers when we knew it would not be necessary to access the attic again. We again are extremely pleased. Pleased with the service, pleased with the initial plan, pleased with the crew that did the job, pleased that the price quoted was the final prices. From experience, we know the work will lower our energy usage.

Syrus Smith★★★★★3 years ago

Energy Savers has insulated, air sealed, and conditioned the crawl spaces on several houses my company owns. They are ALWAYS professional and treat every one of our homes like they own them. Their pricing is extremely competitive and it is always a pleasure dealing with their office staff for scheduling. I will continue to use their services.

Tawnya Higdon★★★★★2 years ago

Just a shout out to let you know what a phenomenal job Energy Savers did on adding insulation to my attic. Would highly recommend these folks, the service people, the office people and the sales people were top notch. Out of 1 to 5 stars, I give them 6. Thanks for a job well done!!

4.3
9 Google reviews

Recent Reviews:

Dana Bryant★★★★★10 months ago

Ruby Lamar Dedman★★★★★4 years ago

Fred Bennett★★★★★4 years ago

4.1
19 Google reviews

Recent Reviews:

Brandie Daniel★★★★★5 years ago

I called Sexton Insulation & Gutters and spoke with Victor and even though the weather was not the best they came over the next day repaired it very quickly did a phenomenal job. I was really impressed with the quality of service. I highly recommend this company! Thank you to Victor great job to your guys!

B Breutinger★★★★★5 years ago

This review is late, but when we bought our house about three years ago, we hired then to blow in insulation in our attic. Very professional. Arrived when they said they would. Was done when they said they would be. Fair price compared to the other estimates I got. I recommend them to any one who asks.

Hicham★★★★★7 months ago

For semi drivers: You will need to back into the Driveway. There is no room to turn around in the parking lot. You can park for overnight , clean restroom, nice people overall, thank you 🙏

Frequently Asked Questions — Spray Foam Insulation in Louisville

These are the questions Louisville 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 12 verified Louisville contractors above for exact quotes.

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

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