Ducts and a furnace upstairs
Foam on the underside of the roof deck makes the attic a sealed, conditioned space, so the ducts and furnace up there sit inside the part of the house you cool.
Spray foam insulation in South Pasadena CA - an attic sealed from the roof down
Hot upstairs rooms, drafts and a high power bill usually start in the attic. We seal and insulate it in the right order.
- Licensed and insured.
- Free quotes on site.
- We respond within 1 business day.
What spray foam insulation does for your house
Spray foam insulation is foam sprayed onto surfaces such as the underside of your roof deck, where it blocks air flow and helps control heat and sound, and at E&J South Pasadena Spray Foam Insulation we install it in South Pasadena homes with drafty rooms or a hot upstairs.
In an older house, the attic is usually where a hot bedroom or a climbing power bill starts. What moves the price is how much surface we spray, which foam suits the space, how thick it goes and what has to be fixed or cleared first. The schedule turns on that prep, such as a roof repair, and on the time your household spends away while the foam cures, so I look at the space and put it all in a written estimate. That way you understand what you're paying for before any work starts.
A look before any talk of foam
I go into the attic or crawl space before we discuss materials, because the old insulation, the wiring and the roof deck decide whether foam is the right choice at all.
Order learned on commercial crews
I spent my early years on commercial insulation crews in offices, warehouses and metal buildings, and in 2023 I started this business to bring that same order and care to homes.
Licensed and insured for this work
In California, insulation work belongs to a state-licensed insulation contractor, and the city checks for a valid license and any required workers' compensation. We're licensed and insured, and you can look up a license with the state board.
How we plan and spray an attic
Foam costs more than loose fill and seals air while it insulates, so it usually wins when the ductwork lives in the attic. When it doesn't, air sealing the gaps around lights, pipes and the hatch, then topping up with blown-in insulation, loose fill blown through a hose, usually gives you more for your money. I'll tell you which side your house falls on, and our attic insulation work covers either path.
Before foam goes under a roof deck, we want the roof looked at and any leaks fixed, because the foam covers whatever is there and a drip you can spot today turns into one you can't. If the old insulation on the attic floor is soaked or full of droppings, I'll point that out as well, since new work over an old problem just wastes your money.
We also help you plan where your family will stay while the foam cures, so the time away is settled well before the crew arrives. Our install crew does the spraying and carries the foam out to the edges where the roof meets the walls, and I walk the finished attic with you before we call the job done.
Where spray foam makes sense in a house
Ceilings full of lights and vents
When your ceiling has many can lights, speakers and vents, sealing each one from below is hard. Foam at the roof deck puts the air seal above all of them instead.
Hot upstairs rooms in older houses
Older houses often leak air through gaps along the roof line, which leaves the rooms under them hot in summer. Foam blocks that air flow right where it's sprayed.
Open-cell or closed-cell foam
Open-cell foam stops air but lets moisture vapor pass, while denser closed-cell foam blocks moisture too. Some foams need a coating or drywall over them, so the choice changes what goes on top.
Get a written estimate for your attic
Send the form and we'll reply within one business day to set a visit. I'll come look at your attic and give you a free written estimate, with no obligation to go ahead.
Your roof's age and leaks
Tell us roughly how old the roof is and whether it has leaked, because foam under the deck waits until the roof is sound, and that can change the order of work.
Any old wiring or vermiculite
If you know of knob-and-tube wiring or pebbly vermiculite insulation in the attic, please mention it, so I come prepared and we sort those out before anything else is planned.
Where your ducts and furnace sit
Let us know if the ductwork or furnace is in the attic, since that usually decides whether foam or sealing with loose fill is the better use of your money.
Insulation examples for attics and crawl spaces
Examples of sprayed foam, blown-in fill and attic layouts you can point to when we talk through your own attic.
Spray foam questions from South Pasadena homeowners
These are the questions South Pasadena homeowners usually ask before foam goes into an attic, answered plainly.
How much does spray foam insulation cost in South Pasadena?
Spray foam insulation in Los Angeles usually costs about $2 to $5 per square foot. That's the usual range across the area, not our price, and where your job falls depends on the foam, the thickness and any repairs needed first. I put your figure in writing after I see the space, and the work is backed by our satisfaction guarantee.
Do we have to leave the house during spray foam insulation?
Yes. Safety guidance says to stay out for at least 24 hours, and the right return time varies with the product, the type of home and whether children or older relatives live there. We give you the foam's re-entry time, the point when everyone can come back. Cured foam is fairly inert, but later repairs near it shouldn't heat or grind it.
Does my roof need work before spray foam goes under the deck?
Often, yes. Guidance on foam under existing roofs says to inspect the roofing and fix any leaks and damage first, and if the roof is at or near the end of its life, replacing it may belong in the same plan. If your roof looks close, I'll say so before any foam is scheduled, so you can settle the order with your roofer.
Can you spray foam in an attic with knob-and-tube wiring or vermiculite?
We'd want those dealt with first. A best-practice attic checklist says insulation goes in only after live knob-and-tube wiring, the old wiring strung on ceramic knobs, is replaced with modern wiring, and that work stops if the old insulation is vermiculite, since it may contain asbestos. If I find either one, I'll tell you before we price any foam.
Who handles the permit for spray foam in South Pasadena?
We do, when your job needs one, from the application to setting up the inspection. The city's Building Division issues permits, and its list of covered work doesn't mention spray foam, so we ask the city about your job. Its Permit Technician answers questions at permittech@southpasadenaca.gov. The city says skipping a required permit can bring fines for the owner and the contractor.
Other attic work that fits with foam
Book a look at your attic
Call (626) 597-0202 or use the form, and if your home is in Pasadena, Alhambra, Glendale or another city nearby, we check that city's rules too.