Basement insulation in Burnsville MN - warm walls with the dampness handled first
Cold floors upstairs and a chilly, damp-smelling basement? We look for water first, then insulate the walls so the space stays comfortable.

What does it take to insulate a basement in Burnsville?
Basement insulation in Burnsville lines your foundation walls, from the inside or the outside, so the basement becomes part of the heated house and stays comfortable like the rooms above it instead of pulling cold up through your floors.
Most people call us because the floors upstairs are cold, the basement smells a little damp or the heating bill keeps climbing, and some are about to finish the space and want the walls done right before the drywall goes up. The price moves with how much wall there is, whether there's water to deal with first, whether we work from inside or dig outside, and which material fits your wall. The schedule mostly turns on that same water question, because if a wall has to dry out or another trade has to fix a leak, we wait for that before we start. I give you your own number after I've looked at the space in person, and we often pair the job with air sealing, which closes the gaps first so the new insulation isn't fighting a draft.
How we handle basement insulation
The first thing I do in your basement is look for water, because insulation over a damp wall just covers the problem up. I check the walls and floor for damp spots, stains and that musty smell and ask where the water goes when it rains, and if the real fix is a roof leak or a crack another trade should handle, I'll tell you to do that first. Once we know how the wall will stay dry, we insulate the walls instead of the ceiling in most basements, and I walk you through whether working from inside or outside makes more sense for your house. Our crew then installs it the way we planned, keeps it tight to the wall so air can't slip behind it, and cleans up before we leave. Satisfaction guaranteed on every job.
Against concrete, the material matters. Closed-cell foam insulation is dense foam that blocks moisture and seals air in the same layer, so it's often our pick for the inside of a basement wall even though it costs more. Open-cell foam insulation is lighter and costs less, but it lets moisture pass through, so we usually keep it for walls and ceilings above ground rather than against your foundation.
Basement insulation rules and conditions in Burnsville
The City of Burnsville issues residential permits and wants them in hand before a project starts, but its list names remodels, decks and additions, not basement insulation, so whether your job needs one isn't settled until we ask. We check with the city before work starts, take care of the permit when the job calls for one, and set up and meet the inspector if there's an inspection. The state energy code also has a say on a basement wall that's part of the heated house, because it wants insulation from the top of the wall down to a set depth below the ground, or to the footing if that comes first, put in the way the maker's instructions say.
On basements around here we usually find bare block or poured walls, or an older finish job with something behind it nobody has looked at in years. Dakota County recommends testing every home for radon, a gas that comes up out of the soil, and says the colder months are a good time since the furnace tends to draw it in, so I'll ask whether you've tested while we're planning. We're based in Burnsville and do the same basement work in Apple Valley, Eagan and many other cities nearby, Minneapolis and Saint Paul included, and if you're not sure we come to you, just call and ask.
How basement insulation works
Call or send the form
Call (952) 234-9016 or send the form, and we'll set a time for me to come out. We answer into the evening on weekdays and through the weekend, so it's easy to fit around work.
I look at your basement
I come out myself, check the walls for water and anything that has to be fixed first, and talk through inside versus outside with you. You get a price based on what I saw, and if a leak needs fixing before insulation makes sense, I'll tell you before you spend anything on insulation.
Our crew does the install
Our install crew shows up with the plan we agreed on and insulates the walls the way we laid it out at the estimate. If opening a wall turns up something we didn't expect, we stop and talk with you before going further.
Walk the finished basement together
Before we leave, I walk the finished job with you and show you what we did on each wall. If something doesn't look right to you, that's the time to say so.

Get a basement insulation estimate in Burnsville
We reply within 1 business day to set up a visit. I come out, look at your basement in person and leave you a free on-site estimate. There's no pressure to book.
Questions about basement insulation before you book
What is the best way to insulate basement walls, inside or outside?
Inside is usually easier and costs less because nobody has to dig around your foundation, while outside keeps the wall itself warm and far less likely to fail from moisture. For most basements I lean toward inside with the dampness handled first, and I save outside for when the ground around the foundation is already being dug up.
How much does basement insulation cost in Burnsville, MN?
Basement insulation around the Minneapolis area usually runs about $1.50 to $2.50 per square foot. That's the going market rate, not our price, and I give you your own number after I've seen your basement in person.
What causes mold behind basement insulation?
Usually it's dampness that wasn't dealt with before the walls were covered, because mold and mildew can grow behind wall coverings where nobody sees them. Finishing over a moisture problem can make health conditions worse and lead to serious damage, and since most Minnesota basements connect to the rest of the house through ductwork and other openings, the problem doesn't stay downstairs.
Who can get a building permit for basement work in Burnsville?
Burnsville issues residential permits to a licensed contractor, or to a homeowner who owns and lives in the house and is doing the work. When we're doing the job, we're the ones who handle it.
Is it better to insulate the basement walls or the basement ceiling?
Insulating the basement walls is usually better than insulating the ceiling. National energy guidance says that holds even when the basement isn't heated, because the basement is more connected to the rest of your house than to the outdoors.
How do I choose a contractor to insulate my basement?
Ask how they'll manage moisture, because insulation that goes up without a plan for it can hide problems and sometimes trap water in the wall. Federal guidance also says batts, blown cellulose or mineral wool on the inside of a basement wall shouldn't get plastic sheeting or a foil facing on the room side, so it's fair to ask what goes over the insulation.
Why Burnsville homeowners call Thermal Burnsville Insulation Company for basement insulation
The owner prices every basement
I come out to look at every job and put the estimate together myself. That way the price you get comes from someone who has stood in your basement and seen the walls.
Licensed and fully insured crew
Minnesota licenses residential contractors and remodelers who offer homeowners more than one special skill and registers those who offer just one. We're licensed and fully insured, so you aren't carrying the risk of a crew working in your house without coverage.
In business since 2021
I learned insulation working next to my dad in attics and crawl spaces, and we've been at it on our own for five years now. We're best known for sealing and insulating attics in the right order, and a basement works the same way, starting with water.
On a basement, the whole job rides on whether the wall stays dry, so that's the first thing I'll look at. Set up a visit and we'll start there.
Foam options for basement walls
Closed-cell foam insulation
Worth a look if you want insulation and an air seal in one layer right against the concrete.
Open-cell foam insulation
A lighter, lower-cost foam for walls and ceilings above ground, if other parts of the house need attention too.
Book your basement insulation estimate
Call (952) 234-9016 or use the form, and have a rough idea of your wall area and any damp spots you've noticed so I can come out ready for your basement.





