Spray Foam Insulation in Louisville, KY

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

💰 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

Spray-Tec, Inc.

Direct: 5026335499

5
55 Google reviews

Recent Reviews:

Chad Vaughn★★★★★5 months ago

Quin and the spray-tec team did an amazing job on our new dormitory build at Country Lake Christian Retreat. We were on a very tight time schedule and they did what needed to be done to help us accomplish our goals. We will definitely be working with them again in the future. Chad Vaughn CLCR Property Manager

Blake Bramer★★★★★2 years ago

My wife and I are currently building a new location for our fitness facility in New Albany. We've been doing the process without a GC and taken time to collect bids from many different contractors. Not all of our decisions were based exclusively on cost; we also highly valued good communication and gained perspective. From the first time Anthony came to bid for our job, he asked a bunch of questions to help us bring clarity to what we needed. He was very helpful and provided a lot of wisdom that this rookie didn't know anything about! As the start date came close, Quin was our main point of contact and he took great care of us. Communication on the timeline was always clarified as they continued to make progress. For the actual work, it turned out phenomenal! They did a great job of covering our entire facility in a plastic barrier as they began. At the end, there was a little over spray onto our overhead garage door, but Quin was quick to scrub it off and even off to replace the door paneling if needed. They stand behind their work proudly and do it well. Anybody that I know in the future that is doing a build is going to get my STRONG recommendation for Spray-Tec! Thank you guys for setting us up so well.

Brady L Smith★★★★★4 years ago

We had Spray-Tec install closed cell spray foam to the roof decking and in the basement. I was very impressed with every aspect of the process. I will break down my review in parts. Estimate: Jacob was out first point of contact with Spray-Tec. He was very well informed about the subject matter but more importantly for me was when he wasn't sure about something he wouldn't make it up and would look into it and get back to me (which he did). This was going to be a large purchase so my wife and I had a list of questions to ask and Jacob to the time to answer them all. He seemed genuinely interested in our project and wanted to make sure we were getting what we wanted. He quoted a timeframe for when he would get back to us with a completed estimate and met that to the day. I can honestly say that one of the major reasons I went with Spray-Tec is because of Jacobs customer service, professionalism, and his willingness and ability to answer my questions in a timely manner. Scheduling Once we agreed to go further with Spray-Tec we were turned over to Quin. We were scheduled quickly and he took his time to explain the process and what we should expect for the project to be complete and he was also able to confirm what we were getting and went over any specific requests that we had gone over previously with Jacob. He was very polite and again showed genuine interest in our project and my wife and I felt like there was nothing that would surprise us during the process. The day(s) of installation We were given a time that Spray-Tec would arrive on the day of installation and they arrived right on time. I met Quin in person at this time and he made sure that everything we had gone over on the phone and by email were correct now that they were on site. I was introduced to the to installers at that time and we walked the entire project (the attic and the basement) to make sure that there would not be anything that either of us overlooked or were confused about. Able was the main installer and he along with his team did an amazing job. I am very particular about making sure things are done the way that I had envisioned and I was more than impressed. They took their time to cover our valuables and also made sure they did not cause excessive over-spray and at the same time did not show any evidence that they were cutting corners. Able and his team were friendly and polite and I felt very comfortable leaving my home in their very capable hands. The results This review is being written about 2 weeks after installation so I have a limited amount of data to share. But in that time I have been absolutely amazed at the difference we can see already. Spraying the roof decking would make the attic area become a conditioned space and it was instantly clear that that area was more comfortable. Before we had little to no insulation in that area so the winters were brutally cold and the summers were almost too much to deal with for any amount of time. Now the temperature has not been more than +/- 5 degrees from what the main floor is. Also (and most importantly) is that our HVAC system does not come on hardly at all. It's almost unbelievable how little it runs now. During the day we keep the thermostat at around 71 and in the evening we lower it to 65. We had a night that got down to the upper 20's just recently. The inside temperature never actually got down to 65 until 8 hours later so the heat never kicked on the entire night. Before it would have to run 2 to 3 times an hour. The overall comfort of the house has completely changed for the better. I can't think of a better return on our money than what we are seeing already. I can't wait until this summer to see how well everything works during our hot days. Price We had several estimates done for spray-foam in both open and closed cell. Spray-Tec had the best price for what we wanted and provided more services than the other (more expensive) competitors. We are so thankful that we reached out to Spray-Tec. It has completely changed our forever home for the better.

Indiana Spray Foam

Specialist

Direct: 2196966100

5
8 Google reviews

Recent Reviews:

Lori C★★★★★2 months ago

We used Indiana Spray Foam for our Barndominium house and are completely satisfied with the entire process. Chris was an excellent salesman, Cindy kept us informed and got us scheduled and Juan, Eli, Dom and Jose were efficient, very professional, friendly and did an AMAZING job! Highly recommend ❤️

Ricardo Vasquez★★★★★3 weeks ago

I had Indiana Spray Foam insulate my attic and garage, and I am incredibly pleased with the results! From start to finish, the experience was fantastic. The entire team was professional and efficient, but I want to give a special shout-out to Juan, Eli, Louise, and Eduardo. This crew did an absolutely great job and worked tirelessly to ensure everything was done perfectly. They were courteous, answered all my questions, and left the work areas spotless. Thanks to their hard work, my home is already feeling more comfortable and energy efficient. I highly recommend Indiana Spray Foam and this wonderful team to anyone needing insulation services!

Caryl Polisson★★★★★a month ago

Chino, Martin, and Yair were wonderfully professional, courteous, and knowledgeable about their work. They kept us informed of their progress and answered any questions that we had. We did not feel the need to hover over them. Our Pole Barn feels so much different now—-quiet, warm, even though our overhead doors are not yet installed. Thank you guys for a job well done!!

Epiphany

Specialist

Direct: 8595591889

5
8 Google reviews

Recent Reviews:

Jason Huber★★★★★2 years ago

We have used Epiphany Foam Insulation in our last 2 homes and could not be happier with the pricing we received, the quality installation the installers did, and more importantly the unbelievable difference their foam insulation made in our heating and cooling bill reductions. I highly recommend Epiphany for your next insulation project.

Jimmy Connor★★★★★a month ago

Contacted Jim with Epiphany foam came out and had my quote the same day and scheduled the work to be done 3 days later. Customer service is top notch and professional from the top down. Technician showed up on time and completed the work and cleaned up. Very pleased with there work and highly recommend this company!!

Craig Johnson★★★★★a year ago

The level of professionalism is outstanding. The team went above and beyond to ensure everything was up to my satisfaction. The team provided suggestions of products to cover the foam with when discussing my future plans. I am beyond happy with the control of temperature that I have now with my building and it looks amazing

Energy Savers LLC

Direct: 5028178400

5
5 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!!

Weather Stop

Direct: 5025509127

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

USA Insulation of Louisville

Direct: 5023583626

5
9 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.

Insulateky

Direct: 5023965828

5
544 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!

Superior Insealators

Direct: 5022668868

5
6 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.

Axis Spray Foam Insulation Louisville

Specialist

Direct: 5023609200

5
5 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

Isenberg Spray

Specialist

Direct: 5025440379

4.9
8 Google reviews

Recent Reviews:

Jeremy Johnson★★★★★a year ago

Not many companies meet my expectations, let alone exceed them, but Isenberg Spray Foam Insulation definitely did. I called and the owner came out the same day, provided a quote that afternoon and did the job 2 days later. Their price was better than the company my “general contractor” originally hired and the knowledge and professionalism is untouchable. The employees care about the customer and it shows.

Seay Graphics★★★★★a year ago

On time and exceptional great work, had the underside of our sunroom insulated very professional and cleaned up the underside of the joist which is great since we are planning on closing this in with boards.

Chris MoMotko★★★★★10 months ago

Theses guys were awesome, our house was freezing even using a pellet stove, wasn't cutting it, they left and our house And its super warm, and no more pellet stove. Jaret was great to work with.🤗

Louisville Insulation

Direct: 5024611435

4.9
500 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 .

Josh★★★★★a week ago

I had a great experience with Louisville Spray Foam. I called them around 2:00 PM one day, and they were at my property by 2:00 PM the very next day — an incredibly fast response time. This was a last-minute project on my end, and they really understood my timeline and made arrangements to make it work, which I truly appreciated. Even though my project was a small job and right at their minimum, they still worked with me on pricing and gave me a very fair deal. They also did an excellent job educating me on my options and explaining everything clearly so I felt confident in the decision we made. What really stood out was their attention to detail. The prep work was done properly, the installation was clean and professional, and the cleanup was outstanding — honestly, it was like they were never even there when they finished. They treated me like I was their only client the entire time. Professional, friendly people who take pride in their work. I highly recommend Louisville Spray Foam and would absolutely use them again

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.

Premier

Direct: 5025986523

4.9
85 Google reviews

Recent Reviews:

B P★★★★★2 years ago

They were on time and very polite. Their work was very professional. A great value for the cost.

Kris Trautwein★★★★★3 years ago

Brandon and the team at Premier Spray Foam were great to work with. Communication was great, they showed up and finished the job when they said they would. They even helped find some plumbing issues in my crawl space that I otherwise wouldn’t have known about. They completely encapsulated my crawl spade and their work was fantastic. I would recommend them to anyone.

Tim LeDonne★★★★★a year ago

Brandon and the Premier team were great to work with and very knowledgeable. These guys were presented with a very challenging ceiling height and they didn’t blink twice. They did exactly what they said they’d do, and they were very professional about it. Everything was masked off to keep the place as clean as possible. Also…unlike other contractors, these guys did a great job cleaning up after themselves. Would hire again in a heartbeat.

1st Choice

Direct: 5028029730

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.

Koala Insulation of Louisville

Direct: 5023524022

4.8
8 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!!!!

Cardinal Industrial Insulation

Direct: 5025895794

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.

Kentuckiana Spray Foam

Specialist

Direct: 2707500877

4.3
6 Google reviews

Recent Reviews:

jenurarn★★★★★3 months ago

These guys are amazingly honest and have immense integrity! We had an estimate for new insulation and set a date for the removal of the old insulation and addition of the new. Once up in the attic space they measured our existing insulation and it was more than sufficient for our home. Chad who I had dealt with through the whole process came to me and told me that while he would do the job if that’s what I wanted but he felt that it wasn’t necessary. He saved us thousands of dollars! If I had any needs for insulation this is the only company I would trust! Honesty in business is so rare these days and Chad and this company renewed my faith in humanity!!!

Tim Cooley★★★★★3 months ago

Chad responded over a holiday weekend and him and Gary came out immediately following the holiday and responded with a competitive bid. They completed the job that same week that I’m extremely appreciative of thanks guys for following through and taking care of business. It’s extremely much appreciated Tim

A. A★★★★★4 months ago

They responded to my inquiries for a quote promptly. They were extremely professional and respectful on the job site. I am pleased with the work.

W H Davis Insulation Co

Direct: 5023092825

4.3
9 Google reviews

Recent Reviews:

Dana Bryant★★★★★10 months ago

Ruby Lamar Dedman★★★★★4 years ago

Fred Bennett★★★★★4 years ago

4 Seasons Insulation And Spray Foam Llc

Specialist

Direct: 5028274546

4.2
5 Google reviews

Recent Reviews:

Emily M★★★★★3 years ago

Jeff and his team spray foamed our new build home and put batting in the garage walls. They did an awesome job! They were in and out quickly, cleaned up after themselves and Jeff provided great customer service. Always answers my questions and calls or text messages. I would highly recommend!

Michael Kelly★★★★★a year ago

Jeff and his team were on it. Even through the setbacks of machine failure. Issues were communicated and job was completed better than anticipated!

Jamie Lambert★★★★★6 years ago

Awesome guys. Came in beat the pricing from the other big name guys. Did amazing work and left with out a trace. Highly recommended.

Sexton Insulation & Gutters

Direct: 5029646510

3.5
6 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

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?
Spray foam insulation typically costs $1.00–$3.00 per square foot installed, depending on the type and your location. 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 costs $2,000–$6,000. Most 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?
Look for contractors 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 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 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.