Crawl space insulation in State College PA - warmer floors and a space that can still dry
Cold floors over the crawl space, or pipes you worry about every winter? We insulate the walls or the floor, in the right order.
- Licensed and insured.
- Free quotes on site.
- Replies within 1 business day.
What does crawl space insulation do for a cold floor?
Crawl space insulation in State College goes either on the foundation walls around your crawl space or on the underside of the floor above it. Through our winters, that means warmer floors and some protection against freezing for the pipes and heating equipment down there.
Most calls I get start with a cold floor in the room over the crawl space, or a drafty older house where the air under the floor finds its way upstairs. Which way we go depends on whether the space is vented, whether your furnace or ducts live down there and how it will dry. Those same things move the price, along with the size of the space, how easy it is to get into and whether old insulation has to come out first. The schedule mostly turns on that prep work and on whether a permit applies at your address. The written estimate I give you after looking at it lays out the plan and the price for your house.
How we do crawl space insulation
Before we choose between the walls and the floor, I look at whether the crawl space is vented, what equipment sits down there and how the space will dry once we're done, because those three things decide where the insulation belongs. Closing off the vents is only one piece of that, so we won't do it without a plan for the rest. Once the plan is set, our crew pulls out any old insulation that's soaked or full of droppings, since new material laid over it just keeps the problem. Then we seal the gaps around pipes, wires and the edge of the floor framing so the new insulation isn't fighting a draft. After that we install it on the walls or under the floor and clean up before we leave.
A cold floor is often only part of a drafty house, so if the rooms above still feel chilly, we can look at wall insulation too. Our air sealing services close the leaks between the crawl space, the living space and the attic that let cold air move through the whole house.
Insulating the crawl space walls
This suits a crawl space we're closing off and giving a proper way to dry, especially when your furnace, water heater or ducts are down there, because it brings that equipment inside the insulated part of the house. It takes more planning up front, since the vents, the moisture and any gas or oil appliances all get handled as one job.
Insulating the floor above
This suits a crawl space that stays vented, where you want a warmer floor and the space below keeps breathing the way it does now. It's usually the simpler path when nothing that needs warmth sits under there, though any pipes below end up on the cold side and need their own protection.
Crawl space insulation and permits in State College
Whether a crawl space job needs a permit isn't something I'd guess at, because it depends on where your address actually falls. The Centre Region Code Administration issues building permits for State College Borough and for College, Ferguson, Harris, Halfmoon and Patton Townships, and the Borough requires a zoning permit before any structure is altered or built. Plenty of houses with a State College mailing address sit in one of those townships rather than the Borough. So we check with the office that covers your address, and where a permit applies, we prepare the paperwork, walk you through it and keep you posted on where it stands.
Many of the houses we see here and on jobs in Bellefonte and Tyrone are older, with vented crawl spaces, a furnace or water heater tucked under the floor, and fiberglass that has sagged or dropped onto the dirt over the years. Our winters are hard on pipes in a space like that, so we find out what's down there before anything goes in.
Why State College homeowners call Apex State College Spray Foam Insulation for crawl spaces
I write every estimate myself
I come out to look at each job and write the estimate myself, and our installers do the work. I check it with you before we finish, so the person who made the plan is the one who signs off on it.
Years running local insulation jobs
Before I started this business in 2023, I spent several years as the right hand to another insulation contractor in this area, running jobs from the attic floor up. That's where I learned to work in order, so nothing gets sealed or covered before it's ready.
Licensed and insured for this work
We're licensed and insured, and I'm glad to answer questions about either when I'm out for the estimate. That counts for something when a crew is working under your house around wiring, pipes and gas lines.
Insulation details written down for review
An older handout from the regional code office says that when a project goes through its plan review, it asks for building plans and insulation details. I write down what goes where in your crawl space, so that information is ready if your job needs it.
If your floors are cold or you're not sure what's in the crawl space, please send us a few details or call (814) 996-0002, and I'll come take a look.
Request a quoteGet a written plan and price for your crawl space
Send the form and we'll reply within one business day to set up a visit. I'll come out for a free estimate on site, look over your crawl space with you and then write up the estimate. There's no pressure and no obligation.
What happens after you call about your crawl space
Call or send the form
Call (814) 996-0002 or use the form and tell us a little about the house and what you're noticing. We'll get back to you and set a time for me to come out.
I look over the crawl space
I check whether it's vented, what equipment is down there and how it will dry, and I go over what I find with you before anything is written up. The written estimate then shows where the insulation goes, how the space will dry and what it will cost, so you know the price before we schedule anything.
Plan fresh air, then schedule
Before we start, we talk through fresh air, any gas or oil appliances and whether anyone needs to be out of the house, and we handle the permit side if your address needs one. Then we set a day for our installers.
Our crew installs, I check
Our installers do the work and clean up after themselves. I check the job before we call it finished.
Frequently asked questions
What is the best way to insulate a crawl space, the walls or the floor above?
One cost guide advises insulating the floor above when the crawl space is vented, and the walls when it's closed off or holds heating and cooling ducts. National building guidance adds that with rigid foam board on the walls of a closed crawl space, the floor above doesn't need insulation of its own. I'd want to see whether yours is vented and what sits down there before I pick one.
How much does crawl space insulation cost in State College?
Across the US, crawl space insulation usually costs about $1 to $4.50 per square foot, and that's the market range, not our price. In one cost guide's example, insulating the walls cost less than insulating the underside of the floor. Your own price comes in the written estimate after I've seen the space.
Is sealing the crawl space vents enough to fix cold floors?
No, closing off the vents by itself can raise moisture levels, and it can turn deadly when gas or oil equipment that draws its air from the space around it sits in the crawl space. Sealing a house can also trap carbon monoxide, radon and other pollutants, which may call for added ventilation fans and repairs to whatever is causing them. That's why we talk through your appliances first, and you can ask about a radon test, since the EPA and the Surgeon General recommend testing all homes.
How do I keep a sealed crawl space from getting damp?
Give it a way to dry out, such as a small amount of air from your heating and cooling system, because national guidance says a crawl space always needs one. A sealed, insulated crawl space also cuts the condensation that forms on cold floor framing when humid air comes in through the vents. How yours will dry is part of the written plan before we insulate anything.
Who issues building permits for insulation work in State College?
The Centre Region Code Administration issues building permits for State College Borough and the townships around it, and it answers permit questions at 814-231-3056. We check with that office for your address before the job is scheduled.
Does foam insulation in a crawl space have to be covered?
Usually yes, because most codes require a covering such as gypsum board over foam insulation, since some foams can give off toxic or flammable gases when heated. Some foam products are designed and tested to lower those risks, and it's fair to ask any installer whether the foam they plan to use meets local code. I'll tell you which product we'd use and how it gets covered before any work starts.
Other work that often goes with it
Wall insulation
If rooms above the crawl space still feel cold after the floor is done, the exterior walls are often where the heat goes next, and filling them can even out those rooms.
Air sealing services
Drafts don't stop at the floor, so sealing gaps around pipes, wiring, the attic hatch and other openings keeps cold air from moving up through the whole house.
State College, PA
Have your crawl space looked at
Call (814) 996-0002 or use the form with your address, whether the crawl space has vents and whether a gas or oil appliance sits down there, so I know what to look for when I come out.