Crawl space insulation in Apple Valley MN - warm floors and a crawl space that stays dry
Cold floors and a draft underfoot? We insulate your crawl space so the floors warm up and the space underneath stays dry.

What does insulating a crawl space actually involve?
Crawl space insulation in Apple Valley means sealing the air leaks under your house and insulating either the crawl space walls or the floor above them, so the rooms over it stop pulling cold up through the floor. Done right, it keeps those floors warmer and helps keep the pipes and any heating equipment down there from freezing in a Minnesota winter.
Most people call because the floor over the crawl space is cold, a pipe down there froze once, or they looked through a vent and saw insulation hanging loose. What moves the price is how big and how cramped the space is, whether we insulate the walls or the floor above, and what has to be fixed first, such as water getting in or old, wet batts that need insulation removal before anything new goes in. The schedule mostly turns on whether your heating system needs changes too and whether the city wants a permit, and your own figure comes from the estimate I write after I've been down there with you.
- Licensed and insured.
- Free in-person estimates.
- We reply within 1 business day.
What crawl space insulation looks like
How we handle crawl space insulation
The first thing I look for is anything down there that burns fuel, like a furnace or water heater, because closing up a vented crawl space changes the air around it. Then we decide with you whether the walls or the floor above makes the better line between warm and cold for your house. If it's the walls and they're concrete block, Minnesota's energy code says block walls insulated on the inside have to drain through each block's hollow core to an approved drainage system inside, so that drainage can become part of the job, and the city's Building Inspections Division can tell you how it applies to your house. Our crew then seals the gaps around pipes, wires and framing, puts in the insulation and leaves the space a way to dry out, because a crawl space shut tight with nowhere for moisture to go just trades a cold floor for a damp one.
Crawl space work often goes hand in hand with air sealing services, since the gaps around pipes and wires that let cold air in under the floor usually show up elsewhere in the house too. If the rooms above still feel cold once the floor warms up, wall insulation is often the next thing I'd check, especially in older houses with little in the walls.
Why Apple Valley homeowners call Apple Valley Insulation Company for crawl space insulation
The owner writes your estimate
I come out and write every estimate myself, and our installers do the work. I look the job over before we finish, so the person who told you what it would include is the one checking it.
Licensed and insured for crawl spaces
We're licensed and insured. That matters under a house, where our crew works in tight spaces around your pipes, wiring and furnace.
Problems found before anything's covered
Before anything goes in, I look for water getting in, wet spots and old insulation that's soaked or full of droppings, because new insulation over any of that just hides the problem. Most of our calls come from older houses around Apple Valley and the cities near it, where those problems have had years to build.
Explaining before anyone picks material
We've been in business since 2021, and what people know us for is slowing down and showing you what's going on under your floor before anyone picks a material. I'd rather answer the same question three times than have you agree to work you don't really understand.
Under a house, what matters most is getting the air and the moisture right before the insulation goes in. Call Apple Valley Insulation Company at (651) 268-6025 or send us a message, and if you can, tell us whether your crawl space has vents, whether a furnace or water heater sits down there and whether the walls are block.
Get a straight answer on your crawl space
Send the form and we'll get back to you within one business day to set up a time. I'll come out for a free on-site estimate, and there's no obligation to go ahead.
- Licensed and insured.
- Free in-person estimates.
- We reply within 1 business day.
What happens after you call about your crawl space?
Call or send a message
Call (651) 268-6025 or fill out the form, and we'll set a time for me to come out. We take calls Monday through Friday from 8 AM to 10 PM and weekends from 6 AM to 9 PM.
Look at it together
I look over the crawl space with you, tell you what I found and what I'd do first, and write up the estimate. You'll see what's driving the price before you decide anything.
Our crew does the work
Once you decide on the plan, our installers do the work and clean up the crawl space when they're done. I go down and look it over myself before we call the job finished.
Crawl space insulation questions from Apple Valley
How do I decide between insulating the crawl space walls or the floor above?
Most of the time we lean toward the walls, which national guidance calls a best practice in every climate, because it ties the crawl space into the house and keeps the pipes and heating equipment down there on the warm side. The floor above can be the better choice in some houses, but it has to be done carefully, since a floor over unheated space is a prime source of heat loss and cold floors. I'll tell you which one I'd pick for yours once I've seen it.
Can I just seal my crawl space vents to stop the cold?
No, sealing the vents by themselves isn't enough to turn a vented crawl space into a sealed, insulated one. On its own it can raise the moisture down there, and if a furnace or water heater that draws its air naturally sits in the crawl space, it can create a deadly situation. Closing a crawl space up properly usually involves your heating and cooling system as well as the insulation.
How much does crawl space insulation cost near Apple Valley?
Insulating a crawl space in the Minneapolis area usually costs about $1,700 to $7,700 per job. That's the going rate around here, not a quote from us, and where your house lands depends on what I find down there, which the estimate spells out.
How do I keep a sealed crawl space from getting damp?
Give it a way to dry out, because national guidance says a crawl space always needs one, and one of the most effective is a small amount of heated or cooled air from your house's own system. The same guidance calls for plastic sheeting across the floor and lapped up the walls to hold back moisture and soil gases from the ground, with a radon vent under it, so ask whether those are in any plan you're given.
Do I need a permit to insulate a crawl space in Apple Valley?
It may, so check with the city's Building Inspections Division, because its permit list names building, mechanical, plumbing and demolition work and doesn't name crawl space insulation by itself. If the city wants a permit for your job, we check with that office, handle the paperwork through the city's ePermits system and set up the inspections. Owners can also schedule an inspection by calling the division at (952) 953-2588.
Does foam insulation in a crawl space have to be covered?
Usually, yes, because some foams can give off toxic or flammable gases when heated, so most codes call for a covering such as drywall over them. Some products are made and tested to lower that risk, and national guidance says to check the one being used with local authorities, which here means the city's building inspectors.
Work that goes with crawl space insulation
Wall insulation
A room over the crawl space can lose just as much heat through its outside walls as through the floor.
Air sealing services
Closing the leaks around the attic hatch, outlets and windows keeps the warmth you've gained in the floor from slipping out the rest of the house.




