Open-cell foam insulation in State College PA - rooms that hold their heat
Drafty rooms, a hot upstairs or a high power bill? We'll tell you whether open-cell foam fits, then seal and insulate it right.

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Is open-cell spray foam right for my attic or walls?
Open-cell foam insulation is a soft, low-density foam that our crew sprays into attics, rooflines and open walls in State College with a high-pressure rig, and it expands to fill the gaps, so it seals air leaks while it insulates.
Most people call us because the upstairs is hot all summer, the room over the garage never warms up, or the power bill keeps climbing in an older house. At Apex State College Spray Foam Insulation, I'd want to see the space before calling foam the answer, because the price turns on how much area we cover, how thick the foam goes, how easy the space is to reach and whether old material needs insulation removal first. The schedule turns mostly on your family's time away from home and, where one applies, a permit, and the written estimate puts your own figure and plan on paper.
How we install open-cell spray foam
If anyone at home has asthma, allergies or skin trouble, please tell us at the first visit, because federal product safety guidance asks people with those conditions, or a past reaction to isocyanates, one of the foam's chemicals, to read the product information carefully and consider other insulation if needed. I'll also tell you plainly when open-cell isn't the right fit for the spot you have in mind. Once we've settled on it, I look for water stains on the roof decking first, since foam sprayed under a roof should go over sound, repaired roofing, and we pull out any old insulation that's soaked or full of droppings so the problem doesn't stay behind. We talk through fresh air and any gas or oil appliances before we start, then our installers spray the foam, trim it where it swells past the framing and clean up before I check the work.
Foam is often one piece of a bigger job. A damp crawl space should get a crawl space vapor barrier, a sheet that keeps ground moisture down, before the floors above it are insulated. Property managers and business owners can also ask about commercial insulation, where open-cell foam often goes into ceilings and interior walls.
Under the roof, when ducts are up there
Spraying the underside of the roof brings the attic inside the house, which matters most when your furnace ducts run through it. Foam costs more than loose fill, so if the ducts aren't up there, air sealing, closing the gaps first, and topping up with blown-in insulation usually wins, and I'll tell you so.
Open walls during a remodel
When a remodel has the walls opened to the studs, open-cell fills in around wiring, pipes and boxes in a way batts can't. We'll weigh it against closed-cell foam, the dense foam that blocks moisture, wall by wall before anything gets sprayed.
Open-cell foam insulation and permits in State College
Most of this area shares one code office. The Centre Region Code Administration reviews, permits and inspects building work in State College, Bellefonte and several nearby townships, and it issues building permits to put up or add onto a structure. Its list names new structures and additions, not insulation, so that list alone doesn't tell you whether foam in your house needs a permit. I check with the office that covers your address before we start, and where a permit applies, we prepare the paperwork, walk you through it and keep you posted on where it stands.
We're based in State College and work across the cities around it, and we see the same houses on jobs in Park Forest Village and Tyrone: older homes with a few tired inches in the attic and a bedroom over the garage that never feels right. If you don't see your city listed, please ask us.
Why State College homeowners call Apex for open-cell foam
I write every estimate myself
I come out to look at each job and write the estimate in person, then our installers do the work and I check it with you before we finish. You hear about your job from the same person who's responsible for it start to end.
Work done in the right order
I spent several years running insulation jobs for another contractor in this area before starting this business in 2023, and the lesson I kept is that nothing gets covered before it's ready. Every job is backed by our satisfaction guarantee.
Foam details ready for plans
If your foam is part of an addition or remodel, the regional code office wants insulation details and the maker's installation details on the plans so it can check them against code. We pull those details together with you, so the plans go in complete.
Licensed and insured, rules explained
We're licensed and insured. Pennsylvania doesn't license most contractors, but state law has most home improvement contractors register with the Attorney General's Office, carry minimum insurance and use contracts that meet its consumer protection rules, so it's worth asking any crew you're considering about all three.
When you're ready, please send us a few details or call (814) 996-0002, and I'll come take a look.
Request a quoteGet a written open-cell foam estimate for your attic or walls
We reply within one business day to set up a free estimate at your house, and there's no pressure and no obligation. I'll look over the attic, walls, basement or crawl space, go over what I find with you, and then write up the estimate for you to keep.
What happens after you call about open-cell foam?
Call or send the form
Tell us which area you'd like insulated and whether anyone at home has asthma or allergies. We'll set a visit time that suits you.
I look before I write
I come out, check the attic, walls, basement or crawl space, and walk you through what I find. Nothing gets written up until we've talked it over.
You get it in writing
Your estimate spells out where the foam goes, what prep comes first and what drives the cost. We take care of the permit side where one applies.
We spray, then I check
Our installers do the work while your family is away, and we go over fresh air and appliances first. I check the finished job with you before we call it done.
Frequently asked questions
Is open-cell spray foam good for walls in a cold climate?
It can work in walls, but it's usually not the first choice in a cold climate. Building Science Corporation says open-cell foam can go in wall cavities with an interior vapor retarder, a layer that slows moisture, to control condensation, and it prefers closed-cell foam in cold climates. I'd go over both with you for each wall before we choose.
What is the best way to use spray foam in an attic in State College?
The best approach depends on which foam your attic calls for, and the guidance leans toward closed-cell in colder regions. Building Science Corporation says both foam types work in most climates, but in IECC Climate Zones 5 and higher, the energy code's colder regions, it calls for high-density closed-cell foam or a hybrid that combines closed-cell and open-cell. I'll go over which way suits your roofline and ductwork once I've seen them.
How long do we have to stay out of the house after spray foam insulation?
Plan on at least 24 hours away, which is what federal product safety staff advise. The safe time to come back, called re-entry time, varies with the product, the house and whether children or older relatives live there, so we settle the timing and where you'll stay before we start.
How much does open-cell spray foam cost in State College?
Spray foam insulation in State College usually costs about $2 to $5 per square foot. Where your job lands depends on how much area we cover, how thick the foam goes and how much prep the space needs first. Your written estimate gives the figure for your house.
What is the difference between open-cell and closed-cell spray foam?
Open-cell foam is light and soft and expands a lot as it goes on, while closed-cell is dense and blocks moisture. Open-cell has an R-value, how well insulation slows heat, of about 3.5 per inch, which is lower, so it takes more depth to do the same work.
Does open-cell spray foam need to be covered after it's installed?
Sometimes, depending on the product and the code. Spray foam may need a thermal or ignition barrier, such as a coating or gypsum board, though not every product does. We check the product we'd use for your space and list any covering it needs in the estimate.
Other work that often goes with foam
Crawl space vapor barrier
If the floors over your crawl space feel cold or the space smells musty, a vapor barrier keeps ground moisture down before any insulation goes in above it.
Commercial insulation
For offices, shops and rental buildings around State College, we look over the space and how it's used, then plan insulation work that fits around the people inside.
State College, PA
Find out if open-cell foam fits your house
One visit to your attic or walls answers more than any guess, and it gives your family time to plan the night away if foam turns out to be the right call.
