Attic insulation in Hollister CA - a sealed attic and a more comfortable upstairs
Hot upstairs, drafty rooms or a power bill that keeps climbing? We fix what's wrong up there, seal the gaps, then insulate.
I come out and check the work
I come out to look at your attic myself, so the person pricing the job is the one who's actually seen it. Our crew does the install, and I check the work before we call it done. Satisfaction guaranteed on every job.
Crawling attics long before 2017
I spent school summers on an insulation crew and kept at it on other people's crews before starting this business in 2017. We're still best known for the unglamorous part, finding the gaps and problems before any insulation goes in.
Fully licensed and insured, every job
We're fully licensed and insured for every job we take on. If you want a straight answer on whether your attic is worth redoing, and I'll tell you when it isn't, call (831) 245-4007 or use the form on this page.
Attic insulation for Hollister homes
Attic insulation in Hollister, CA, from Premier Hollister Spray Foam Insulation means sealing the air leaks between your attic and the rooms below, then adding insulation on top. It helps when the upstairs runs hot, rooms feel drafty, or moisture, dust and pests keep finding a way in.
Price comes down to the size of the attic, how many inches are already up there, how many gaps need sealing around pipes, lights and the hatch, and what turns up when I look. A damp spot, an old roof leak or wiring that needs work adds to the job and can push the start date, because those get fixed before anything new goes down. You'll see your own figure on the written estimate after I've been up there.
What makes the job worth doing usually happens before any insulation goes in, so the first visit is a slow look around the attic, not a quick tape measure. Tell me the house's age, what's up there now, and any damp ceiling spots, old wiring or recessed lights you've noticed, since each one changes the plan. In California, installing insulation is its own license class with the state contractor licensing board, so ask anyone headed into your attic for theirs.
Attic insulation and the work that comes first
Checking the attic before insulating
Before anything goes on the attic floor, I look for old wiring, damp spots and suspect insulation, and whatever we find gets handled first. Knob and tube wiring, the pre-1930 system, can be a fire hazard in contact with insulation, so it has to be replaced or properly boxed before we cover it, which means owners of older homes plan the electrical work first. Wet insulation from a roof leak, moldy or rotted rafters, and vents blowing into the attic get fixed first too. Burying them just hides the problem under a nicer blanket.
Sealing gaps and keeping vents open
Next we air seal, closing the gaps around pipes, wires, lights and the hatch, because insulation laid over a draft is fighting it. In attics with vented soffits, we set baffles at the eaves, short chutes that keep air moving from the soffit vents up to the ridge, so the attic still breathes. Recessed lights get covered only if they're IC rated for insulation contact, usually marked on a sticker or stamp inside the housing, and one with slits, holes or no marking isn't. Then the insulation goes in full depth, right out to the edges.
Choosing foam or blown-in fill
Foam costs more and seals air while it insulates. For most attics, sealing the gaps and topping up with blown-in insulation, loose fill sent through a hose, gets you there for less, so that's usually what I recommend. The exception is ductwork running through the attic, where foam earns its price. If the attic is only part of the problem, with cold floors over the crawl space or drafty walls, we can look at home insulation for the whole house. Sealing leaks and adding attic insulation is one of the most cost-effective ways to improve how a house performs.
Get a free on-site look at your attic
Send the form and we'll get back to you within one business day to set up a visit. The estimate is free, done on site and comes with no obligation to hire us.
(831) 245-4007How an attic job goes with us
You call, I come out
Call (831) 245-4007 or send the form, and we'll get back to you to set a time. I come out and look at the attic myself, along with the crawl space or walls if they're part of the problem.
Written estimate, then permits
You get a written estimate that lists what needs fixing first and what we'd do about it. Once you're ready, we sort out any permit with the right office, and anything that has to be fixed first gets done before the crew starts.
Crew installs, I check it
Our crew seals the gaps and puts in the insulation, then I check the work before we call it done. We walk through the attic with you so you know what went in and where.
Attic insulation questions in Hollister
Is my old attic insulation safe to cover with new insulation?
Usually, but not if it's vermiculite, a pebble-like fill that's usually gray-brown or silver-gold and may contain asbestos. The EPA's vermiculite guidance says to leave it undisturbed and look without touching, and new work waits until it's handled. If you choose removal, the EPA says a trained, accredited asbestos abatement contractor should do it, separate from whoever assessed it.
Can new insulation go over the old insulation in my attic?
Yes, usually, and it doesn't have to match, so loose fill can go over batts and the other way around, as long as the old layer is dry and clean. Batts laid over loose fill should be unfaced, with no paper or foil backing. Loose fill goes in with a blowing machine, which is why ENERGY STAR's guide says hiring a professional may be wise.
Does California have rules for adding attic insulation in Hollister?
Yes, state rules may treat adding insulation in a vented attic as altering the ceiling over your living space, which brings in air sealing and insulation requirements that a building department official checks. Attics whose insulation already rates R-38 or better for slowing heat are exempt. I check with the city or county building office for each address, and we handle the permit when the job calls for one.
How much does attic insulation cost in Hollister, CA?
Insulation jobs of any kind, not only attics, usually run about $1,800 to $6,200 per job around the San Jose area. That's the regional range, not our price. Where your attic lands depends on its size, what's up there now and any repairs that come first, and you'll get your own figure in writing after I've seen it.