Vapor barrier installation in Burnsville MN - a sealed cover over the crawl space dirt
Torn plastic, bare dirt or a musty smell in the crawl space? We lay a sealed sheet that keeps ground moisture out of your house.
Does my crawl space need a new vapor barrier?
Vapor barrier installation in Burnsville means laying sealed plastic sheeting over the dirt floor of your crawl space, so ground moisture stays under it instead of drifting up into the rooms you live in. On most houses it comes down to one decision: a new barrier, a repair to the old one, or moisture work first.
Usually somebody goes down to check the furnace or a pipe and finds the old sheet torn, bunched at the walls or missing over part of the floor. If you also see standing water, mold, rotten wood or anything that might be hazardous, that cleanup comes first, and soaked old insulation may call for insulation removal before any plastic goes down, because a new sheet over a wet or moldy floor just hides the problem. The price moves with the size of the space, how much of the floor is bare, whether the old plastic can stay and how many walls, piers and equipment paths the sheet has to work around, while the schedule mostly turns on whether that cleanup has to happen first. I give you your own number once I've looked at the space in person.
What our vapor barrier installation covers
I start by looking at the plastic that's already down there and telling you plainly whether taping it will do or a new sealed layer is the better buy. Then our crew clears the floor, lays the sheet with the seams overlapped and taped shut and fastens the edges so nothing curls back to bare dirt. The usual spec for this work has the cover reaching all the exposed dirt and running up the foundation walls and piers while staying off untreated wood. Where you or a service tech walk to reach the furnace, water heater or other equipment, we use a heavier sheet, because plain plastic tears under knees and boots and thicker, reinforced sheeting holds up much better there.
The plastic takes care of the ground under your house, but the warm air you pay to heat usually escapes higher up, so we often pair this job with attic air sealing to close the gaps around lights, pipes and the hatch. In an older house where the walls or attic never got much insulation, retrofit insulation adds it to the spaces that are already finished.
Vapor barrier installation permits in Burnsville
The City of Burnsville issues residential building permits and wants them in place before a project starts, but its list names roofing, windows, decks and remodels, not vapor barriers. That leaves the question open for a crawl space job, so we check with the city before work starts, take care of the permit if yours calls for one and set up and meet the inspector when there's an inspection.
On jobs around here we see a lot of crawl spaces with thin plastic laid loose years ago, never taped at the seams, pulled back from the walls and torn along the path to the furnace. We find the same thing on jobs in Minneapolis and Saint Paul, and we work in many of the cities around Burnsville besides those, so if you're not sure we come to yours, just call and ask.
How vapor barrier installation works
Call or send a message
Call (952) 234-9016 or use the form, and tell us about the crawl space and anything you've noticed down there. We set up a time for me to come out and look.
I inspect the crawl space
I check the old plastic, the walls and piers, and look for water, mold or rot that has to be handled first. You get an estimate that gives you the price, says whether we'd tape or lay a new layer and names anything to fix before we start, so you know the cost before anything is booked.
Our crew lays the barrier
The install crew does the work the way we planned it, sealing the seams and putting the heavier sheet where people walk to the equipment. If you can, clear stored boxes and junk out ahead of time so the plastic can reach the whole floor.
We walk the finished job
I walk the finished crawl space with you before we leave, so you can see the seams and edges for yourself. Satisfaction guaranteed on every job.
Get a price on your crawl space vapor barrier
We reply within one business day, and then I come out, look at your crawl space and leave you a free on-site estimate with no pressure to book. If you note the rough size of the space and whether you've seen standing water or mold, I'll know what to look for when I get there.
Questions before you book a vapor barrier
What does a vapor barrier in a crawl space do?
It keeps ground moisture and soil gases from rising out of the dirt into the crawl space. Without it, that damp air can get pulled up into your house through cracks in and around the subfloor, which is why every crawl space should have plastic over the ground.
How much does crawl space vapor barrier installation cost?
A basic vapor barrier, just plastic over the dirt floor, usually costs about $0.50 to $1.50 per square foot across the US. That's the going rate for the plain job, not our price, and heavier sheeting, repairs to old plastic or moisture cleanup all change it, so I price yours after I've seen the space.
How do I know if my old crawl space plastic can be repaired?
If it's 6-mil plastic, the common thin grade, and the trouble is open seams, tears or edges that were never fastened to the walls, taping the tears and seams may be enough. A new sealed layer laid over it lasts longer, so when the old sheet is badly worn I'll usually tell you the new layer is worth the extra.
Is a vapor barrier enough to fix a wet basement?
Usually not. A membrane or coating put on the inside without drainage generally won't solve basement water for the long run, so if water is getting in, ask how drainage fits the plan before anything goes on the walls. If the fix belongs to another trade, I'll tell you that first.
Who can get a building permit in Burnsville?
Burnsville issues residential permits to a licensed contractor, or to a homeowner who owns and lives in the house and does the work themselves. When our crew is doing the job, sorting out the permit with the city is on us.
How do I test my Burnsville home for radon?
Dakota County sells radon test kits to county residents for $10 each, and its public health office recommends testing every home, with the colder months an especially good time to do it. Radon is a gas that comes up from the ground, so a test is worth doing whether or not you put down new plastic.
Why Burnsville homeowners call Thermal Burnsville Insulation Company for vapor barriers
The owner prices every job
I come out to look at every crawl space myself and build the estimate from what I saw, not from a phone description. That way the price already accounts for the old plastic, the equipment paths and anything that has to be fixed first.
Straight talk about the real problem
If a roof leak, a plumbing drip or a drainage problem is the real issue, I'll tell you to fix it or call another trade before we lay any plastic. Covering a wet problem just hides it, and you'd be paying for work that won't help.
Licensed in Minnesota, fully insured
The state requires a license for residential contractors and remodelers who offer a homeowner more than one skill, and we're licensed and fully insured. That matters when a crew is working under your floor.
Learned the trade in crawl spaces
I learned this work beside my dad in attics and crawl spaces, and I started this business in Burnsville in 2021. We're best known for doing sealing and insulation in the right order, and that same order carries down to the crawl space.
On this job, moisture gets handled first and plastic goes down second. Call (952) 234-9016 or tell me what you've seen down there through the contact page.
Related insulation work
Attic air sealing
Stops heated air from leaking out through the top of the house, where most drafts and ice dams start.
Retrofit insulation
Brings an older house with thin or empty walls and attics up to a comfortable level without starting over.
Get your crawl space plastic looked at
We pick up early and late, 6 AM to 9 PM on weekdays and 8 AM to 10 PM on weekends, so you can call (952) 234-9016 or use the form right after you've been down there with a flashlight.
