Thorough Insulation Contractor in Brentwood CA - Even Temperatures in Every Room
Advanced Brentwood Insulation Company seals and insulates attics in Brentwood and nearby cities like Antioch and Oakley. We also insulate the room over the garage that bakes in summer, and use spray foam where ducts run through a hot attic.
Brentwood insulation done in the right order
I started Advanced Brentwood Insulation Company here in 2021 after learning the trade on an insulation crew, and today we're a licensed and insured insulation contractor in Brentwood, CA. We're best known for attic work done in order, sealing the gaps first and insulating after, because I'd rather tell you a job isn't ready than do it twice. We offer 16 insulation services and have pages for 12 of the cities we work in, from Antioch and Oakley out to Livermore and Tracy, so if your city isn't listed, just ask. You can read more about who we are and how we work.
Insulation services in Brentwood CA
We insulate attics, walls, crawl spaces and commercial buildings, take out old insulation, and install foam and vapor barriers. Price and schedule mostly turn on the prep the space needs, its size and access, and the material, and your written estimate lists that prep beside the insulation.
Spray foam seals air and insulates in one layer, which helps most where ductwork runs through a hot attic. It costs more than loose fill, so if your ducts aren't up there, sealing gaps and topping up usually makes more sense.
Attic insulation is most of what we do, and the attic is usually where a hot upstairs starts. We check the inches already up there, deal with leaks or damp spots, then bring coverage up evenly, as thick at the edges as in the middle.
Blown-in insulation is loose fill blown through a hose, so it fills corners and gaps around framing that rolled batts miss. We keep it clear of the eave vents, the openings at the roof edge, so your attic can still breathe.
If the whole house feels uneven from room to room, we look at the attic, walls and crawl space together and tell you which to do first. Sometimes the answer is one space, not all three, and your estimate says so plainly.
We vacuum out old insulation that's soaked, matted or full of droppings, because new material laid over it keeps the problem in your attic. If it looks like it could hold asbestos, we stop and point you to a specialist.
Insulating under the floor helps with cold floors in winter, as long as the crawl space underneath stays dry. We check for standing water and damp wood first, then fit insulation between the floor joists so it stays in place.
In a finished house, we blow insulation into the walls through small holes and patch them, so there's no drywall tear-out. If you're remodeling and the walls are already open, you can choose batts or spray foam instead.
Air sealing means closing gaps before insulating, around windows, outlets, plumbing and the door from the garage. It often fixes a drafty room on its own, because moving air carries heat right past even thick insulation.
If your house has a basement, we insulate its walls or the ceiling above it, depending on how you use the space. A room you live in usually gets the walls, and storage space usually gets the ceiling.
Closed-cell foam is a dense foam that blocks moisture as well as air, so it suits rim joists, damp-prone walls and tight spots where every inch counts. It's the pricier foam, and we'll tell you where it's worth it.
Open-cell foam is softer and lighter, and it expands to fill odd-shaped cavities and quiet sound between rooms. It costs less than closed-cell but doesn't block moisture the same way, so we use it where the space stays dry.
Property managers call us for offices, shops and other commercial buildings, and we plan the work around your tenants where we can. The order stays the same as on a house, with leaks and damp spots handled before new insulation goes in.
A crawl space vapor barrier is a heavy sheet laid over the dirt to keep ground moisture from rising into your floor framing. We overlap and tape the seams so it works as one piece instead of loose strips.
Beyond the crawl space, we put vapor barriers in walls, attics and remodels, where damp indoor air could meet a cold surface and condense. Which side it goes on depends on the wall, so we sort that out at the estimate.
Most of the gaps that make a house feel drafty sit in the attic floor, around can lights, pipes, wires and the hatch. We seal those from above first and insulate after, so the work goes in the right order from the start.
Retrofit insulation means adding to a house that's already built and lived in, usually by topping up the attic and filling walls without opening them. We measure what's there first, so the estimate covers what's missing rather than what already works.
How a job goes, start to finish
Call or send a message
Call (925) 503-1068 or use our contact form to tell us what's going on, like a hot upstairs or a drafty room. We reply within one business day, by phone or email, and set up a free look at the house.
I look and write the estimate
I come out myself, go up into the attic or down into the crawl space, and walk you through what I found and what should happen first. You get a written estimate listing any prep work, with no obligation to book.
Prep, insulate and walk through
Our crew lead and a small crew cover your floors, handle the prep, seal the gaps and then put the insulation in, cleaning up as they go. When they're finished, they walk the completed job with you.
What insulation work looks like up close
Insulation questions from Brentwood homeowners
Does an insulation contractor in Brentwood need a state license?
Yes, for most insulation jobs. California's Contractors State License Board licenses anyone who builds or alters a structure, and a license applies when the job needs a building permit, uses employees or costs $1,000 or more, all in. A bigger job can't be split up to get under that line, and Brentwood's business license application asks contractors for their state license too.
How much does attic insulation cost in Brentwood, CA?
It depends on what your attic needs first, so I price it after I've been up there. The big factors are the inches already in place, whether old insulation has to come out, how many gaps need sealing and how easy the attic is to reach. Your written estimate lists that prep along with the insulation.
Do we have to leave the house while you insulate the attic?
Usually not for blown-in or batts, since the work stays in the attic and we cover the path to the hatch. Spray foam is different, so you, the kids and the pets stay out until the foam maker's re-entry time, the wait before it's safe to come back, has passed. I'll tell you that wait at the estimate.
How long will the insulation crew be in my attic?
It depends on the attic, so I'd rather give you a schedule at the estimate than a guess on the phone. Size, access and prep move it most, since removing old insulation or dealing with a leak or old wiring comes before anything new goes in. If the space isn't ready yet, I'll tell you, and the insulation can wait.