Blown-in insulation in Downey CA - even coverage across your whole attic
Hot rooms upstairs and a high power bill often come from thin, patchy attic insulation. We blow it in evenly, edge to edge.
- Licensed and insured.
- Free on-site estimates.
- Expect a reply within 1 business day.
Is blown-in insulation right for my Downey attic?
Blown-in insulation is loose fiberglass, cellulose or rock wool blown through a hose across your attic floor, and for most Downey homes it's the simplest way to get the whole ceiling covered, so it slows the heat coming down in summer and the warmth leaking out in winter.
Most people who call us have a bedroom over the garage that never cools off, or they've looked through the hatch and seen a few inches of gray, flattened fill and wondered if it's doing anything. The price mostly turns on how big your attic is, how much is already up there, how easy it is to move around in, and how many gaps, can lights and vents need sealing or guarding before we blow. The schedule turns on whether your job needs a permit and whether anything has to be fixed before it gets covered, and the written estimate I give you lays out each step so you can see what the work involves.
How we install blown-in insulation
I start by going through the attic with you and pointing out what's there, because anything that needs fixing should get fixed before it's buried. Our crew then does the air sealing, which means closing the gaps around pipes, wires, light housings and the hatch, so the new fill isn't fighting a draft. Baffles go in at the eaves to keep the vents open and stop the fill from sliding into them, and metal guards go around flues and exhaust fans to hold insulation away from the heat. Recessed lights have to be the kind rated to be covered, airtight and safe under insulation, so I check each one before we start. Then we blow the fill to an even depth across the whole ceiling, edges included, and pack it firm enough to hold up, because a thin edge or a soft spot is where the heat gets through.
If the old fill is soaked or full of droppings, new insulation on top just hides the problem, so I'll show you what I see and we'll talk about insulation removal first. When the drafty rooms and cold floors go past the attic, home insulation looks at the rest of the house. Foam costs more and seals air while it insulates, so I'll bring it up when your ductwork runs through the attic, but for most attics, sealing the gaps and blowing in loose fill is the better buy.
Loose-fill fiberglass
Fiberglass is light and doesn't soak up water, so it suits most attics that are dry and just need full, even coverage. It's what we usually reach for when the space is clear and the framing is simple.
Cellulose
Cellulose is recycled paper treated to resist fire, and it packs denser, so it's a good fit for attics with lots of small gaps and odd framing. It's heavier too, so I check the ceiling below before we pick it.
Blown-in insulation in Downey: permits and what we find up there
The city's Building counter issues permits, and they're generally needed for alterations or repairs to an existing building, but the city's list names re-roofs and remodels and doesn't name blown-in insulation, so it isn't settled whether your attic job needs one. When it does, we take care of it with the city or the county office that covers your address. If you'd like to ask yourself, Downey's Building & Safety Division takes permit questions at (562) 904-7142.
A lot of the attics we open around Downey have been topped up before, often thick in the middle and thin along the eaves, sometimes right over the vents. We fix the edges first, since that's where the attic stops breathing and where most of the heat gets in. We're based in Downey and work from Long Beach up to East Los Angeles, and we find the same kind of attics on jobs in Paramount and Norwalk.
Why Downey homeowners call Precision Downey Spray Foam Insulation for blown-in work
I look at your attic myself
I've run this business in Downey since 2017, and I still come out to see the job and write the estimate. You're talking to the person who decides how the work gets done, so your questions get straight answers.
Problems fixed before they're covered
We do the steps in order, sealing gaps and setting baffles and guards before any fill goes down. Once the insulation is in, nobody sees those spots again, so they have to be right first.
Licensed and insured in California
We're licensed and insured, and our trained install crew does the blowing. Satisfaction guaranteed on every job, and I check the finished attic with you before we call it done.
If you want someone to look before anything gets covered up, send us a message or call (562) 306-5737.
Request a quoteGet a written estimate for blown-in insulation in your attic
We reply within one business day of your message. I come out, look at your attic, show you what I found and leave you a free written estimate with each step laid out. There's no obligation to book.
What happens after you call about blown-in insulation in Downey?
Call or send a message
Call (562) 306-5737 or use the form and tell us which rooms give you trouble. We'll set a time for me to come out.
I look at your attic
I check the space, show you what I found and what I'd do first, and answer whatever you want to ask. You get a written estimate with each step laid out, so you know what you're paying for before you decide.
We prep and blow it in
When you're ready, we take care of any permit the job needs, then our crew does the prep and the install. Clear a path to the attic hatch beforehand, since that's where the hose and the crew go in.
Walk through the finished attic
I go over the finished work with you, and you can see the depth and the edges for yourself. We don't call it done until you've had your look.
Frequently asked questions
How much does blown-in insulation cost in Downey?
Attic insulation installation in the Los Angeles area usually costs about $1 to $4 per square foot, and that's the going rate for the work around here, not a quote from us. Where your attic lands depends on its size, how much is already up there and how much sealing and guarding it needs first. I'll give you a written figure for your own house once I've seen the space.
What is the best way to insulate an attic, blown-in or batts?
For most attics, blown-in is the better pick, because blowing loose fill usually costs less than laying batts and covers better, though install costs vary from house to house. Loose fill flows around joists, wires and tight corners where a batt tends to leave gaps.
What causes blown-in insulation to settle?
Blown-in insulation settles when it goes in too loose, and as it sinks it leaves holes and voids where heat slips through. Building science guidance says it has to go in dense enough to fill each space completely, so it's fair to ask any contractor about density as well as depth. That's the reason we pack ours firm instead of just fluffing it deep.
How do I get a permit for insulation work in Downey?
In Downey, a permit can go to a California licensed contractor or to an owner-builder who lives in the single-family home. For townhomes, condos, apartments and duplexes, only a licensed contractor can get one. On jobs that need it, we handle that part for you.
Do we have to leave the house while you blow in insulation?
It's worth talking through before install day, because the safety precautions on a blown-in job apply to anyone who stays nearby, not only our installers. I'll go over what that means for you, your kids and your pets when I come out, so you can plan around it.
Do I need a licensed contractor for attic insulation in California?
For most attic jobs you do, and California has a license class just for this trade, called C-2 Insulation and Acoustical Contractor. The state lets unlicensed people take on work under $1,000, but only when the job needs no permit and they have no one working for them.
Other work that often goes with blown-in insulation
Home insulation
When the drafts and cold floors go past the attic, a whole-house look shows where the rest of your heat is going.
Insulation removal
If what's in your attic now is wet or full of droppings, start here so fresh fill isn't laid over the problem.
Downey, CA
Request your blown-in insulation estimate
Tell us your attic's rough square footage and how many recessed lights you have, so I show up ready to check the right things.