Insulation contractor in South Gate, CA - attics sealed before they're filled
Performance Bell Spray Foam Insulation insulates attics, walls and crawl spaces for homeowners and landlords in South Gate, CA. We seal the gaps first, then add the insulation your house actually needs, and leave the place clean.

- Licensed and insured.
- Free on-site estimates.
- Expect a reply within 1 business day.
Insulation work in South Gate houses
South Gate is a short drive from us in Bell, and the work here looks a lot like it does in Downey and Huntington Park. It's mostly homes, many of them single-story on tight lots, with rentals, back units and rooms built onto the garage mixed in, plus shops and warehouses that call us too.
In an older house, what's already up there decides the job. I look at how many inches are in the attic, whether it's been soaked or packed with droppings, and where air comes through around the lights, pipes and hatch. The size of the space, how tight the hatch or crawl space is, whether old fill has to come out first and whether we use foam or loose fill are what move the price and how long we're at your house, and I put that price in writing once I've seen it.
Insulation work we do in South Gate
Spray foam insulation
Foam fits the rooflines and cramped corners of South Gate's add-ons and garage rooms, sealing air and insulating in one pass.
Explore Spray foam insulationAttic insulation
A lot of South Gate attics have only a few tired inches left, so we seal the gaps and build the depth back up evenly.
Explore Attic insulationBlown-in insulation
Blown-in, loose fill sent through a hose, tops up a low attic over a single-story house without tearing anything out.
Explore Blown-in insulationHome insulation
On a whole South Gate house, I check the attic, walls and floor and tell you what to do first and what can wait.
Explore Home insulationInsulation removal
In older rentals, fill soaked by a roof leak or full of droppings comes out first, since new material on top keeps the problem.
Explore Insulation removalCrawl space insulation
Houses here on raised floors often have bare framing underneath, so we insulate between the joists to take the chill off cold floors.
Explore Crawl space insulationWall insulation
Plenty of older stucco houses have empty walls. We can fill them from outside or inside, then patch, without gutting the room.
Explore Wall insulationAir sealing services
In a drafty South Gate house, we close gaps around pipes, wiring and the hatch first, because insulation can't stop moving air.
Explore Air sealing servicesBasement insulation
Few houses here have a full basement, but when yours does, we deal with any moisture before we insulate the walls.
Explore Basement insulationClosed-cell foam insulation
Closed-cell foam, dense foam that blocks moisture, earns its higher price where damp is the worry, like a crawl space or block wall.
Explore Closed-cell foam insulationOpen-cell foam insulation
Open-cell foam is lighter and softer, a good fit for sealing the underside of the roof over a converted garage room or an add-on.
Explore Open-cell foam insulationCommercial insulation
For shops, warehouses and small office buildings in South Gate, we plan the work around your hours so you can keep working.
Explore Commercial insulationCrawl space vapor barrier
Bare dirt under a raised floor gives off moisture, so we lay a sealed barrier over it before the floor insulation goes in.
Explore Crawl space vapor barrierVapor barrier installation
On remodels, we put the vapor barrier on the right side of the wall, since one in the wrong spot traps water.
Explore Vapor barrier installationAttic air sealing
Can lights, plumbing stacks and the hatch are the usual leaks in a South Gate attic, and we seal them before fill goes down.
Explore Attic air sealingRetrofit insulation
Retrofit work adds insulation to a house you're living in, so we go in through the hatch, crawl space or small holes.
Explore Retrofit insulation
What South Gate houses ask of insulation
I started this business in Bell in 2020 after years on insulation crews around Los Angeles. I come out to look at your house myself, tell you straight what it needs and what can wait, and I'd rather say it isn't ready than take your money for it.
Gaps sealed before the insulation
Insulation over open gaps around can lights, pipes and the hatch ends up fighting a draft, so our crew seals those first and then brings the edges up as deep as the middle.
Eave vents left open
We keep insulation off the eave vents in older attics, so the space can still breathe and moisture has a way out instead of settling in the framing.
I look it over before we go
Our installers do the work, and I look it over before we wrap up, so anything that isn't right gets fixed while the crew is still there and the house gets cleaned up.

Get a written insulation price for your South Gate house
Tell us your address and what's going on, a hot room upstairs or cold floors, and we'll reply within one business day. I come out for a free, no-obligation look and give you the price in writing.
South Gate insulation questions
Do I need a permit to insulate my attic in South Gate?
You may, because the City of South Gate says building permits are typically required for any home improvement, repair or alteration, though its list doesn't single out insulation. Permit rules aren't the same in every city we work in, so we check with the city's Building and Safety Division for your address before we start. If your job needs a permit, we pull it.
Does an insulation contractor need a South Gate business license?
Yes, the city requires a business license of every business working inside city limits, and that includes contractors whose offices are in another city. The city also issues building permits only to the property owner or a state-licensed contractor who holds a South Gate business license, so ask whoever you hire, us included, to show you theirs.
When does an insulation contractor need a California state license?
A California contractor license is needed when the job requires a building permit, uses any hired help, or comes to $1,000 or more in labor and materials. The state contractors board's small-job exception used to stop at $500 and now reaches $1,000, but it only covers work that needs no permit and has no employees on it. If a company or an LLC owns your rental, the city won't give the owner a permit to do the work themselves, and a licensed contractor is needed, which we are, licensed and insured.
How much does attic insulation cost in South Gate?
There's no single price, because the cost turns on your attic: its size, how many inches are already there, whether old fill has to come out and how much air sealing it needs. Foam costs more than blown-in fill, and a tight hatch or a low roof slows the work down. I come out, look at it and give you the price in writing.
How long does insulation take, and when can we go back in the house?
With blown-in fill and air sealing you can usually stay home, while spray foam means everyone clears out, kids and pets too, until the foam maker's re-entry time, the wait before it's safe to come back, has passed. How long we're in the attic turns on its size, how easy the hatch is to reach and whether old insulation comes out first. I'll tell you the plan and the re-entry time when I give you the price.
What is the best way to insulate an older attic in South Gate?
Sealing the gaps first and then topping up with blown-in fill usually gives you the most for your money. Foam costs more because it seals air and insulates at once, and I'll point you to it when your ductwork runs through the attic, since sprayed under the roof it brings those ducts inside the insulated space.
Not in South Gate? Give us a call
If your city has its own page below, pick it. If not, call (213) 329-1866 and ask whether we come out your way.




