Spray foam insulation in Downey CA - sealed gaps and rooms that stay comfortable
Hot upstairs, a drafty room over the garage or old insulation you don't trust? We find out why, then spray the foam that fits.
- Licensed and insured.
- Free on-site estimates.
- Expect a reply within 1 business day.
Is spray foam the right insulation for your Downey house?
Spray foam insulation in Downey is foam our crew sprays into your attic, walls or framing, where it cures in place to slow heat, stop drafts and quiet outside noise.
Most people call us because a room won't stay comfortable, like the hot upstairs or the room over the garage, or because the old insulation up there looks wrong and they're not sure what to do with it. The price mostly turns on how many square feet we're covering, which foam each spot needs, how thick it goes on and how much has to be fixed or cleared out first. The schedule turns on that same prep, any permit the job needs and when everyone at home can be away while the foam goes on and cures. Your written estimate lays out each of those steps, so you can see where the money and the time go before you decide anything.
How we handle spray foam insulation
First I go up and look at what's there now, and I show you, because anything that needs fixing, like old insulation that got soaked or a buried eave vent, should get fixed before foam covers it. Then we talk through which foam suits each spot, and I ask whether anyone at home has asthma, respiratory allergies, a skin condition or a past reaction to isocyanate chemicals. EPA guidance says people with those conditions should carefully review the product information and may want to consider safer alternatives, so if that's your house, I'd rather talk about other options up front than after the job's booked. Once the foam is chosen, we plan with you for everyone to be away while it goes on and cures, and then our crew masks off the space, sprays, trims what needs trimming and cleans up.
Foam isn't the answer in every attic. It costs more than loose fill, and while it does seal air as it insulates, in a lot of attics sealing the gaps around lights, pipes and the hatch and then topping up with blown-in insulation, loose fill blown through a hose, does the job for less. Foam usually wins when the ductwork lives up there, and if that's not your house, I'll tell you so and we'll look at attic insulation that fits it better.
Foam under the roof deck
This suits houses where the ducts or the furnace run through the attic, because spraying the underside of the roof pulls that space inside the sealed part of the house instead of leaving the ducts out in it. It's the case where I'll most often say foam is worth the extra cost.
Foam in open walls and framing
This suits a remodel with the walls open or a room over the garage with gaps all around it, because foam fills in around pipes and wires and seals air while it insulates. Once the drywall goes back on it's a much harder job, so it's worth deciding before the walls close up.
Spray foam insulation and permits in Downey
Downey's Building counter issues the city's permits, which are generally required for alterations or repairs to an existing building, but its list names re-roofs and remodels and doesn't mention spray foam. That leaves the question open for a foam job, so the Building counter at Downey City Hall is where your project gets its answer. When your job needs a permit, we take care of it with the city or county office that covers your address, and if you're not sure whether yours does, we'll find out with you. We're based in Downey and work in the cities around it, so that office isn't always the same one.
Many of the houses we're called to are older, with attics holding whatever went in years ago, flattened in some places, thin at the edges and sometimes full of droppings, so we deal with that before any foam goes on. We see the same attics on jobs in Paramount and Pico Rivera.
Why Downey homeowners call Precision Downey Spray Foam Insulation about spray foam
I write your estimate myself
I come out to look at the job and write the estimate myself, after showing you what's under the old insulation. You get your answers from the person responsible for the work, and I'd rather go over something twice than have you sign off unsure.
Installing insulation since 2017
We've been in business since 2017, and before that I learned insulation on someone else's crew. Our trained install crew does the work, and I check it with you before we call it done.
Licensed, insured and easy to check
We're licensed and insured. Insulation work has its own license class in California, and the city points owners to the Contractors State License Board to check that a contractor's license is valid, so look us up there before you sign anything.
Satisfaction guaranteed on every job. When you're ready, send us a message or call (562) 306-5737 and tell us which space you want insulated.
Request a quoteGet a written spray foam estimate for your Downey home
Send the form and we'll reply within one business day to set a time for me to come out. I'll look at the space with you and give you a free written estimate with each step laid out, and there's no pressure to book.
What happens after you call about spray foam in Downey
Call or send the form
Tell us which space is giving you trouble, whether that's the attic, a wall or the room over the garage. We'll set a time for me to come out and see it.
I look and write it up
I go through the space with you, show you what I found and what I'd do first, and point out which foam suits each spot. You get a written estimate with each step laid out, so you know what's covered and what comes first before you decide.
We prep, spray and walk through
We take care of any permit the job needs, then our crew preps, sprays and cleans up while your household is away. When it's finished, I walk through the work with you and show you where the foam sits.
Frequently asked questions
What is the best way to choose between open-cell and closed-cell spray foam?
Choose by whether that spot needs to slow moisture as well as stop air. Open-cell foam blocks air flow but lets moisture vapor pass, while closed-cell foam, the denser kind, works as a vapor retarder at typical thicknesses, which means it slows moisture moving through. I'll show you which one each spot calls for when I come out.
How long does spray foam take before we can go back in the house?
You come back once the foam has finished curing and the house has been aired out and thoroughly cleaned, which is what EPA guidance says re-entry should wait for. Some makers recommend 24 hours after a professional high-pressure job, though it can vary, so ask us for the ventilation and re-occupancy times of the product we'll use. EPA guidance also says everyone in the house, kids included, should be out while it's sprayed, so plan somewhere to stay.
How much does spray foam insulation cost in Downey and around Los Angeles?
Spray foam insulation in the Los Angeles area usually costs about $2 to $5 per square foot of area insulated. That's the going rate around here, not our quote. Where your job lands depends on the foam type, how thick it goes on and how much prep comes first, and the written estimate I give you after seeing the space has your figure.
Who pulls the permit for spray foam insulation in Downey?
In Downey, generally only a California licensed contractor or the property owner can pull a permit, with a few exceptions. We settle with you at the estimate which of us will apply, and when it's us, we handle it with the city.
How much can an insulation contractor ask for up front in California?
The state licensing board says a contractor can't ask for or accept a down payment of more than $1,000 or 10 percent of the total contract price, whichever is less. Later payments have to be listed in the contract and based on work completed or materials delivered, so read that part of any contract before you sign.
Can an electrician or plumber work around spray foam later?
Yes, but EPA guidance says plumbers, electricians and other maintenance workers should not heat or grind spray foam, because it can give off toxic emissions. Tell anyone working in your attic or walls later where the foam is, which is why I point it out on the walkthrough.
Other insulation work for the same house
Attic insulation
If your ducts aren't in the attic and it simply needs more insulation, this is often the simpler and cheaper route.
Blown-in insulation
Loose fill blown over a thin attic floor can bring it up to depth and reach the corners without the cost of foam.
Downey, CA
Talk through spray foam for your house
Have the space you want insulated, its rough square footage and any health concerns at home handy, and we can get the first conversation right.