Spray foam insulation in Bell CA - the right foam for each space, sealed tight
Hot upstairs or a drafty room over the garage? The right foam seals the gaps and keeps the heat where it belongs.

- Licensed and insured.
- Free on-site estimates.
- Expect a reply within 1 business day.
Spray foam types we install in Bell
Open-cell spray foam
Softer, lighter foam that fills odd-shaped cavities and quiets sound between rooms. It suits attic rooflines and inside walls where the space needs to breathe.
Closed-cell spray foam
Dense, rigid foam that blocks moisture and stiffens what it sticks to. It suits crawl spaces, garage walls and spots that see damp.
What does spray foam insulation do for a house in Bell?
Spray foam insulation in Bell, CA is foam our crew sprays into attics, walls and crawl spaces. It expands to seal the gaps air leaks through and insulates at the same time, so rooms hold their temperature and the drafts stop.
Most calls start with an upstairs that won't cool down, a room over the garage nobody wants to sleep in or a power bill that keeps climbing. The price moves with how many square feet we cover, which foam the space needs, how thick it goes on and whether old insulation or open gaps have to be dealt with first. The schedule mostly depends on that prep and on when your household can be out of the house. After I've seen the space, I'll give you the price in writing.
Spray foam jobs, from prep to cleanup
First I settle open or closed cell, based on where the foam goes and how you use the space. If no ducts run through your attic, sealing the gaps and topping up with blown-in insulation usually beats foam.
Pull out bad material
If the old attic insulation is soaked or full of droppings, we pull it first, since new foam over it seals the problem in.
Mask off the space
We cover vents, wiring boxes and anything that stays in the space, so foam only lands where it's meant to.
Edges and gaps first
We start with the edges, the hatch and the gaps around can lights and pipes, since that's where drafts get in.
Trim, clean and hand off
We trim the foam where it bulges, haul off the scraps and leave the space ready for whatever goes over it next.
Why Bell homes go with Performance Bell
I learned to fix things on a family farm and spent years on insulation crews around Los Angeles before I started this business in Bell in 2020. We're known for doing the prep and sealing first, and for telling you straight what your attic, walls or crawl space actually need.
I check the work before we leave
Our installers do the spraying, and I look the job over myself before we wrap up, edges and corners included.
Told straight when it's not ready
If a crawl space floor is wet or the attic still has open gaps, I'll tell you the job isn't ready rather than take your money for it.
Licensed, insured and tidy on site
We're licensed and insured. I want my crew working safely and your house left clean, with the scraps hauled off and the dust wiped up.
What happens when you call about spray foam in Bell?
We plan a spray foam job around your household. Before anything is booked, we settle with you where everyone stays while we spray and what goes over the foam once it's in.
or call (213) 329-1866
Call or send the form
Call (213) 329-1866 or fill out the form on this page and tell us what space you want insulated. We'll set a time to come out.
I look the space over
I come out myself, look the space over and walk you through what I find, what has to be fixed first and what can wait.
Your price in writing
You get the price in writing for the work we went over, so you can look it over and decide when you're ready.

Get a spray foam and sealing estimate for your Bell home
Tell us which spaces you want insulated, a rough square footage and how you use the attic. We'll get back to you within one business day to set up a free, no-obligation estimate at your place.
Spray foam questions from Bell homeowners
What is the best way to choose between open-cell and closed-cell spray foam?
Choose by the space, because the two handle moisture differently. Open-cell foam stops air but lets water vapor pass, while closed-cell foam at the usual thickness holds vapor back. That means a frame wall filled with closed cell won't dry well to the outside, so the foam has to suit the wall. One cost guide also notes that closed cell costs more because you're paying for a denser foam that needs less thickness to do the same work.
How long does it take before we can go back inside after spray foam?
Federal safety guidance says residents should stay out of the house for at least 24 hours during installation. The chemicals in fresh foam can irritate skin and eyes and can bring on asthma or harm the lungs, so plan a place to stay for the family and the pets. We sort that out with you before spray day and let you know when it's time to come back.
What covers spray foam in an attic?
If you store things in your attic or use it as living space, federal guidance calls for a thermal barrier such as drywall over the foam. Foam facing any room you live in gets the same. An attic you only enter to service equipment gets a lighter covering called an ignition barrier instead. That's why I ask how you use your attic before I price the job.
What does spray foam insulation cost around Los Angeles?
Spray foam in Los Angeles usually costs about $2 to $5 per square foot of area covered. That's the going rate across the area, not our price. Closed cell, extra thickness and heavy prep usually push a job toward the top of that range. I'll give you the price for your house in writing once I've seen the space.
Can I install spray foam insulation myself in my Bell home?
It's not a do-it-yourself job. Spray foam comes from a high-pressure professional system that federal safety guidance says only a trained applicator should use. California's contractor license board also licenses insulation contractors as their own trade, covering insulation installed for temperature or sound control.
Does spray foam insulation need maintenance?
No, insulation in general needs no maintenance once it's in place, which keeps care simple. The one thing to watch is later work that cuts into the foam, like a new light fixture or a plumbing repair. When that happens, make sure the opening gets sealed back up.
Other insulation work we do
Attic insulation
If foam isn't the right call for your attic, a deeper layer of standard insulation can still cool off the rooms upstairs for less.
Explore Attic insulationBlown-in insulation
Loose fill blown through a hose packs in around joists and wiring quickly, so it suits attics where the ducts don't run through the space.
Explore Blown-in insulationAttic air sealing
Sealing the gaps around can lights, pipes and the attic hatch stops the drafts that make any insulation work harder than it should.
Explore Attic air sealing
Spray foam rules and houses in Bell
The City of Bell uses permits to keep construction safe. Building there also has to meet the state codes and energy conservation laws, so the city decides whether your spray foam job needs a permit. You can ask the city at (323) 588-6211, extension 2611. We check with the office for your address before we start either way, since the rules differ between Bell, the cities around it and the county areas. If your job needs a permit, we handle pulling it.
Most houses we work on around here are older. Their attics have been patched over the years, and ducts often run right through them, which is where foam tends to earn its price. We see the same kind of houses on jobs in Huntington Park and South Gate.
