A&S Alhambra Spray Foam Insulation

Blown-in insulation in Alhambra CA - an even layer out to the attic edges

Hot upstairs rooms or a drafty ceiling usually mean thin attic insulation. We seal the gaps first, then blow an even layer across it.

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Loose blown-in insulation blankets an attic floor beneath exposed wooden roof trusses.

Will blown-in insulation fix my hot upstairs rooms?

Blown-in insulation is loose fill blown through a hose across your attic floor. In an Alhambra house it gives the whole ceiling an even layer out to the edges, so the rooms below stay cooler in summer and hold their heat in winter.

At A&S Alhambra Spray Foam Insulation, most of the attics I look at already have some insulation, just not enough, and it's usually thinnest near the edges where the roof comes down low. The price turns mostly on the size of the attic, how many inches are already up there and whether they can stay, how much attic air sealing the gaps need, and how easy the attic is to reach. The schedule turns on whether the attic is ready, because damp insulation, old wiring or anything that needs testing gets dealt with before we blow, and the estimate I do at your house gives you your own figure.

How we do a blown-in insulation job

I start by going up into the attic myself, because I want to see how many inches are already there, whether any of it is damp or full of droppings, and what the wiring looks like before anyone talks about a price. Damp spots and old wiring get sorted out before any blowing starts, since fresh insulation over a problem only hides it. Then our crew does the air sealing, closing the gaps around can lights, pipes and the attic hatch so the new layer isn't fighting a draft, and we set baffles, short guards that hold insulation back from the eaves, so the vents stay clear and the attic can still breathe. Last, we blow an even blanket across the whole ceiling, taking the hose out to the low edges rather than piling depth in the middle, and we clean up the path we used through your house.

If the old layer is soaked, moldy or full of droppings, we handle the insulation removal first and start from a clean attic floor. When the attic is only one part of a drafty house, the walls and floors come into it too, and our home insulation work looks at the whole house together.

  • Topping up what's already there

    This suits an attic whose old insulation is dry and sound but too thin, because we can seal the gaps and blow new material right over it. It usually costs less, since nothing has to come out first.

  • Clearing out and starting over

    This suits an attic where the old layer is wet, matted or full of droppings, because new insulation on top would only keep the problem in place. Removal adds to the job, but I'd rather do it than cover something that will come back.

Blown-in insulation permits and attics in Alhambra

The city's Building Division issues permits for most residential work on private property and decides whether a project needs one, so that's the office to call if you'd like to ask about your attic yourself. California's licensing board has a license class for contractors who install insulation, and the city lets only properly licensed contractors, or people exempt from the state's contractor law, pull a permit. I check with the city before work begins, and when a job needs a permit, we pull it and keep you informed through the inspections.

Many of the houses we see in Alhambra are older, with tight attics and low eaves where the insulation is thinnest and the rooms below run hottest, so we spend the extra time reaching those edges. We find the same kind of attics on jobs in San Gabriel and Monterey Park, and we work in many other cities around Alhambra too, so please ask if yours isn't listed.

Get an estimate for blown-in insulation in your attic

We reply to every request within one business day, and the estimate is free, done at your house and carries no obligation. I'll set a time to come out, look over the attic and explain what it needs before you decide anything.

(626) 525-0036

Blown-in insulation questions in Alhambra

How do I find out if I need a permit for attic insulation in Alhambra?

Call the city's Building Division, because it decides whether a residential project needs a permit and answers that question for owners. If you hire us, I check with them before work begins, and we pull the permit when one is required.

How much does blown-in insulation cost in the Los Angeles area?

A blown-in insulation project in the Los Angeles area usually costs about $1,600 to $3,600 per job, which is the going rate in the market and not a price of ours. Where your attic lands depends on its size, the sealing it needs and whether old insulation has to come out, and the estimate at your house gives you your own figure.

How do I know if my attic is ready for blown-in insulation?

Your attic is ready once wet insulation, moldy or rotted framing, poor ventilation, and kitchen, bath or dryer vents blowing moist air into the attic have been fixed, which national guidance says to have a professional handle first. Knob and tube wiring, found in houses wired before 1930, can be a fire hazard against insulation, and vermiculite, a light, pea-size, flaky gray fill, may contain asbestos, so it stays undisturbed until an approved lab tests it. I check for all of this on the first visit, and it's a normal first step.

Can my old attic insulation stay when you add more?

Usually yes, because insulation that's only dirty is still fine to leave in place and blow over. It has to come out when it's soaked or full of droppings, since those problems stay put under a new layer.

Is it safe to air seal an attic if I have a gas water heater or furnace?

It can be, as long as gas appliances are tested for proper drafting before and after sealing, because in some cases a tighter house makes a naturally venting appliance send combustion gases back indoors. National guidance suggests a Home Performance Contractor for that test, so please tell me about any gas appliances when you call and we'll plan the sealing around it.

Is there help paying for attic insulation in California?

Yes, households that meet the CARE or FERA income limits can get no-cost weatherization, including attic insulation, through the state's Energy Savings Assistance program. If you think you qualify, it's worth looking into before you book a paid job.

Book your attic check in Alhambra

We take calls at (626) 525-0036 into the evening every day of the week, so you can ring after work and describe your attic while it's on your mind.

(626) 525-0036
(626) 525-0036Request an estimate