Hot room over the garage, cold floors or a damp crawl space? Closed-cell foam seals the gaps and insulates in one rigid, sprayed layer.
Closed-cell foam insulation in Chico, CA is a dense spray foam that hardens in place, so one layer insulates, seals air gaps and keeps moisture vapor out. We use it where batts and loose fill struggle, like rim joists, crawl spaces and tight walls, and you'll need to be out of the house while it's sprayed and cures.
Most people call us about a room over the garage that bakes in summer, cold floors over a crawl space, or a power bill that keeps climbing in an older house. Closed-cell foam can fix those when air is leaking through gaps, not just when the insulation is thin. If thin insulation is the whole problem, a cheaper fix often does the job, and I'll tell you that.
The price comes down to how much foam the job takes, which is the area times the thickness, plus how easy the space is to reach, whether anything has to be fixed first and whether the product needs a covering. The schedule turns on that same prep, a permit if your job needs one, and the time you're out of the house. Your estimate puts your own figure on it.
Closed-cell foam isn't the right answer for every house, but it does a few things other insulation can't. Here's what matters when you're deciding whether it fits yours.
Closed-cell foam cures hard, far harder to compress than batts or loose fill, so it holds its shape where we spray it. At its usual thickness it lets almost no moisture vapor through, and a typical product gives about R-6 per inch, a measure of how well it slows heat, which is why it suits tight spots.
A federal spray foam guide calls closed-cell foam highly effective in hot, dry climates. That holds whether it goes on at full thickness or as part of a hybrid, a thinner layer of foam with other insulation over it. If your upstairs bakes all summer, that's worth weighing.
The rim joist is the wood band around the edge of your floor frame, and it's a common draft spot over a crawl space. Spray foam air-seals and insulates it in one step, and closed-cell stops air at a thinner layer than open-cell foam needs, which helps where there's little room to work.
Here's how a closed-cell foam job goes with us, from your first call to the walk-through at the end, including the part where you're out of the house.
Call (530) 399-1513 or send the contact form with your address and what's bothering you, like a hot room, cold floors or a damp crawl space. We'll set a time for me to come out.
I come out, look over the attic, walls or crawl space, and note anything that has to be fixed before we spray. Then I write up the estimate so you see the job and the price before you decide.
Our crew lead and installers do the spraying while you're away. You'll have planned your stay elsewhere around the re-entry time, when it's safe to come back, for the product we use, and we go over that beforehand.
I check the work before we call it finished. Then we walk you through what we did, where the foam went and anything you should know about the space now.
Before anything gets sprayed, I look at what's already there. If old insulation was soaked or full of droppings, or there's a leak another trade should fix first, I'd rather tell you and wait than foam over it. Doing the work in the right order is most of this job, because a problem we cover up is still there, just harder to see.
Closed-cell foam is rigid and handles vapor on its own, so we don't add a second vapor layer on the inside of it. The foam already blocks vapor on its outer side, and the spray foam guide says an extra layer inside has to be left out, because two layers can trap moisture between them.
While we spray, we shut down the heating and cooling in the work area and seal off its openings. EPA guidance calls for that step so nothing from the spraying travels through the ducts to the rest of your house.
Closed-cell isn't the only foam we spray. Open-cell foam insulation is softer and lighter and needs a thicker layer to stop air, so it fits some walls and rooflines better, and I'll tell you if that's your case. We also handle commercial insulation for shops and business buildings, where the same questions about air, moisture and time away come up.
Closed-cell can go on at full thickness, or as a thinner layer with other insulation over it. The hybrid still seals air and moisture with less foam, so it usually costs less, and I'll tell you which fits your space.
Foam costs more because it seals while it insulates. In most attics, sealing the gaps and topping up with loose fill blown in through a hose wins, unless your ductwork runs up there, and then foam is often worth it.
We reply within one business day to set a time, then I come out, look over the space and write a free estimate with no obligation. Have your address ready and tell us which areas you want done, like the attic, the crawl space or the rim joists.
(530) 399-1513In Chico, the City of Chico Building Division issues building and related permits for construction and remodeling work. I won't assume either way whether a foam job on your house needs one, so I check for your address. If it does, we handle the application and the inspection with the city or county office that covers you, and I'll tell you which one that is.
A lot of what we see here is older houses with thin or settled insulation, drafty rim joists and rooms that never quite cool down. The city runs a Residential Retrofit Program aimed at making Chico's older housing more energy efficient, so if your house is older and you're weighing insulation, it's worth asking the city whether it fits your plans.
We're based in Chico and work in the cities around it, including Durham and Oroville. If you don't see your city listed, give us a call and ask.
I'm the one who comes out to look at your house and write the estimate, so the person pricing the job is the one who has seen what's really up there. Our crew lead and installers do the spraying, and I check the work before we're done. I learned insulation on other contractors' crews, and we've been in business since 2020, six years now.
California's contractors board has a license class just for insulation work, covering anyone who installs material to control heat or sound, so it's fair to ask whoever you hire about their license. We're licensed and insured. Our promise is satisfaction guaranteed on every job.
If you want me to take a look, call (530) 399-1513 or send us the contact form.
Open-cell foam can be the better buy for walls and rooflines where moisture isn't the worry and you'd rather spend less on foam.
If you run a shop, warehouse or office building, we insulate business spaces too, with the same look-first approach.
The cities below have their own page on our site, and each gets the same closed-cell foam work we do in Chico. The list isn't everywhere we go, so ask if yours is missing.
Closed-cell spray foam insulation in Chico usually costs about $1 to $1.50 per board foot, which is one square foot of foam one inch thick. That's the going rate here, not a quote, so your total depends on how much area we cover, how thick it goes, how hard the space is to reach and whether a covering is needed.
EPA guidance says you should be out while the foam is sprayed and come back only after it has cured and the house has been aired out and cleaned. Some makers recommend 24 hours before you return, but it varies by product, so plan a stay elsewhere for you, the kids and the pets around the product we use.
It depends on the maker, because some products need a thermal or ignition barrier, a protective layer over the foam, to meet their instructions. We check the product we're using before we price the job, so any covering it needs is in your estimate and not a surprise later.
EPA guidance puts restarting the system after the foam has fully cured and the work area has been aired out and cleaned. Since we seal off the heating and cooling in the work area while we spray, ask our crew lead when they'll unseal it and turn it back on.
Plan where everyone in the house will stay until the re-entry time for our product has passed, and clear a path to the attic hatch, crawl space door or walls we're spraying. Move stored boxes out of the work area if you can, and I'll tell you at the estimate if anything has to be fixed first.
It depends mostly on how much area we're covering and what has to happen before we spray. Repairs another trade needs to make, a permit if your job requires one, and the cure time before you can return all shape the schedule, so I lay out the order of things when I write your estimate.
Knowing up front whether something has to be fixed first means your time away from the house only happens once, so call (530) 399-1513 or send the form.
