Spray foam insulation in Burnsville MN - seal the drafts and hold the heat
Cold floors, a drafty basement or a high power bill usually trace back to air leaks. Foam seals them and insulates in one step.

Will spray foam fix the cold floors and drafts in my house?
Spray foam insulation is sprayed straight onto a surface like a basement rim joist or a foundation wall, where it seals air leaks and insulates in the same pass, so a Burnsville house holds its heat instead of losing it around the edges.
Most calls start with cold floors, a basement that never warms up or a power bill that climbs every winter, and the leak is often right where the house sits on the foundation. The price mostly turns on how much area we're covering, how thick the foam goes and whether it's open-cell or closed-cell, and it goes up if old insulation has to come out first or the foam needs a covering where it faces a room. The schedule depends on the permit, any inspection and the time you'll spend out of the house while the foam cures, and the estimate I leave after looking at your space gives you the price for your house.
What our spray foam insulation work includes
In a basement we usually start at the rim joist, the band of wood where the house sits on the foundation, because it's often the leakiest spot and the least expensive one to do, so it pays back the most for what you spend. Before anything gets sprayed, we talk through open-cell foam or closed-cell foam, the dense kind that blocks moisture, for each spot, since that choice changes how we handle moisture on that wall. I also ask whether anyone in the house has asthma or allergies, and we help you plan where you'll stay while the foam cures. Then our crew masks off the space, sprays to the thickness we agreed on and cleans up when it's done.
Foam costs more than loose fill, and it earns that price because it seals air while it insulates, which is why I like it on rim joists, foundation walls and attics where the ductwork runs. In an open attic with no ducts up there, sealing the gaps and topping up with blown-in insulation, loose fill blown through a hose, usually does the job for less, and that's part of our attic insulation work. I'll tell you which one fits your house, even when it's the cheaper one.
Spray foam insulation jobs in Burnsville
Burnsville's rule is that a permit is in place before every project, and the city is the office that issues residential building permits. We check with the city before work starts and take care of the permit when the job calls for one, so you aren't sorting it out while the crew waits.
We're based in Burnsville and work in many of the cities around it, and the basements we open up tend to look alike. Plenty of houses here have a rim joist with an old fiberglass batt pushed in or nothing there at all, and you feel it as a cold floor in the room above and a draft along the baseboards in January. Foam sprayed on a wet foundation wall just traps the problem, so if a wall is damp, that gets fixed before we spray, and we see the same setup on jobs in Apple Valley and Eagan.
How a spray foam job goes
Call or send a message
You call (952) 234-9016 or fill out the form and tell us which areas are bothering you. We get back to you and set a time for me to come out.
I look at the space
I come out, look at the rim joist, walls or attic, and check for anything that has to be fixed first. You get an estimate that lays out the areas, the foam type and the price, so you know the cost before anything is sprayed.
Our crew sprays the foam
Our install crew does the work the way we planned it while you're staying somewhere else. If the city inspects the job, I set it up with Burnsville's Building Inspections Department, which schedules inspections Monday through Friday, and I meet the inspector.
Walk the finished job together
Once the house is ready for you to come back in, I walk the finished job with you. You see where the foam went and how thick it is before we close things out.

Get a spray foam estimate for your basement or attic
We reply within 1 business day to set a time for me to come out. I look at the space in person and leave you a free on-site estimate, and there's no pressure to book.
What people ask about spray foam insulation
How much does spray foam insulation cost in the Minneapolis area?
Spray foam in the Minneapolis area usually costs about $2,000 to $4,900 for 1,000 square feet sprayed 3 inches thick. Open-cell sits toward the low end and closed-cell costs more, so the foam type and the depth move your number the most. I give you the price for your own house after I've measured on site.
Should I choose open-cell or closed-cell spray foam for my basement?
On a basement wall the choice comes down to moisture, because open-cell foam lets some water vapor through and closed-cell foam 2 inches or thicker doesn't. Federal guidance says closed-cell that thick needs no separate vapor retarder, a layer that slows moisture, in a cold climate, while Minnesota's rule says open-cell sprayed on a foundation wall gets a vapor retarder and air barrier on the side that's warm in winter. That extra layer is part of why I talk through both with you before we spray.
How long do I have to stay out of the house after spray foam insulation?
Plan to be out during the spraying and for at least 24 hours after, which is what federal safety guidance tells homeowners. What the foam gives off varies with the type and the house, so we settle where you'll stay before we start. If anyone at home has asthma, allergies, a skin condition or has reacted to foam chemicals before, the guidance says to read the product information carefully and consider another insulation if needed.
Who can pull a building permit for spray foam insulation in Burnsville?
Burnsville issues residential permits to a licensed contractor or to an owner who lives in the house and does the work. If our crew is doing the spraying, you won't need to pull it yourself.
Does spray foam insulation have to be covered with drywall?
Yes, wherever foam faces a room you live in, federal guidance says it needs a covering such as drywall between the foam and the room. On a finished basement wall or an exposed rim joist, I build that covering into the plan and the estimate so it isn't a surprise later.
Does an insulation contractor need a license in Minnesota?
Only if they work in more than one skill area, because Minnesota's Department of Labor and Industry puts insulation and vapor barriers under one skill, interior finishing, and contractors who do just one skill, other than residential roofers, don't need a state license. That means a crew that only sprays foam may not hold one, so it's fair to ask what a contractor carries before you hire.
Why Burnsville homeowners call Thermal Burnsville Insulation Company for spray foam
The owner looks at every job
I come out myself to look at the space, put your estimate together and check the finished job with you. You deal with the person who planned the work from start to finish.
Started here in Burnsville in 2021
I learned this trade working next to my dad in attics and crawl spaces and opened this business in Burnsville in 2021. Five years in, we're best known for sealing and insulating in the right order.
Licensed and fully insured, every job
We're licensed and fully insured. That matters when a crew is running spray equipment inside your house.
Told straight when foam won't help
If a roof leak or a plumbing problem has to be fixed first, or another trade should go before us, I'll tell you instead of selling you foam that hides it. Our promise is satisfaction guaranteed on every job.
Call (952) 234-9016 or send us a request, and I'll come look at your basement or attic before we talk about foam.
Other insulation work that goes with spray foam
Attic insulation
If the upstairs is hot in July and cold in January, the attic floor is usually where the heat is getting out.
Blown-in insulation
Loose fill over a sealed attic floor is often the cheaper way to add depth when there's no ductwork in the way.
Have us look at your basement rim joist
Call (952) 234-9016 or use the form with the areas you want done, like the rim joist, and a rough square footage, so I can come out ready to measure.





