Basement insulation in Monterey Park CA - walls that stay dry behind the drywall
Basement walls cold to the touch, or a room down there nobody uses? We insulate and seal them so the space holds its temperature.
What's the right way to insulate a basement in Monterey Park?
Basement insulation in Monterey Park usually goes on the inside of the foundation walls, either behind new framing or on furring strips, which are thin wood strips fastened to the concrete, and it makes the room downstairs easier to keep warm, cool and quiet.
Most calls start with a basement that feels cold or clammy, or one you're about to finish and want done right before the drywall goes up. The price comes down to how much wall there is, whether it's bare concrete or already framed, which material suits how you'll use the room and whether anything damp needs fixing first, and that last point plus any framing or drywall work is what moves the schedule. I'll give you your own number after I've seen the basement.
- Fully licensed and insured.
- Free in-person estimates.
- Expect a reply within 1 business day.
What basement insulation looks like
How we handle basement insulation
I start by checking the walls for damp spots and stains, because insulation over a wet wall just hides the problem until it shows up behind the drywall. Then we talk about how you'll use the room, since a finished playroom and a storage area don't call for the same thing, and that decides what I recommend. Basement walls have to stay dry, so when our crew goes in, most of the care goes into sealing the edges and seams and into what ends up on the room side of the insulation. We clean up before we leave, and the hatch or door closes on work you won't have to think about again.
Foam costs more than batts behind framing, but it seals air while it insulates, and on bare concrete I'd usually spend the money there. Closed-cell foam insulation is dense foam that holds back moisture, so it's the usual pick right against the foundation. Open-cell foam insulation is softer and costs less, so it fits better in framed walls or overhead where you mostly want sound kept down.
Why homeowners around Monterey Park call us for basement insulation
I look before I quote
I come out and put the estimate together myself, and I go over the finished work with you before our installers wrap up. You deal with one person who has actually seen your basement.
Doing this work since 2013
Before I went out on my own in 2013, I spent years on upkeep for a property management company, much of it fixing insulation somebody else rushed. That's why I'll tell you what isn't worth doing instead of selling it to you.
Licensed and insured on every job
We're fully licensed and insured. That matters on a basement because the work runs right up against your framing, wiring and drywall, and you want whoever's down there covered.
Permits checked before work starts
Monterey Park requires a building permit to install, alter or repair any structure outside a few exempt items, and its list names drywall replacement but not insulation, so we check with the city's building permits office for your address first. When your job needs one, we pull it and set up the inspection.
On a basement, what counts is the sealing nobody sees once the drywall's up. While you're planning, a radon test is worth doing, because testing the air is the only way to know your level and it's simple and inexpensive. When you're ready, call (626) 597-0201 or send us the details with the basement's square footage, how you plan to use it and any drywall work you have coming.
Get a free on-site estimate for your basement walls
Send the form and we'll get back to you within one business day to set a time. I come out, look at the basement and give you a free estimate on site, with no obligation.
- Fully licensed and insured.
- Free in-person estimates.
- Expect a reply within 1 business day.
What happens after you call about your basement
Call or send the form
Call (626) 597-0201 or use the form, and tell us roughly how big the basement is and what you want to use it for. We'll set a time for me to come out.
I look and price it
I check the walls, the rim joists and any damp spots, then go over which method fits your plans and what the price covers. If something has to be fixed first, you hear about it before anything gets scheduled.
We insulate, then walk through
Our installers do the work, sealing as they go so nothing gets closed in with gaps behind it. Before we wrap up, I go over the finished walls with you.
Basement insulation questions
How much does basement insulation cost near Monterey Park?
Basement insulation in the Los Angeles area usually runs about $1.50 to $4.50 per square foot installed, which is the going rate around here and not our quote. Foam usually lands higher than fibrous insulation, and framing or drywall on top adds to it. I'll give you your own figure once I've measured.
Should I insulate my basement walls or the ceiling?
If you use the basement or plan to, insulate the walls. Energy Department research says the ceiling is only an option when the house is in a dry climate and the basement isn't living space. That's why the first thing I ask is what the room is for.
How do I keep moisture out of insulated basement walls?
Seal every gap so damp air can't reach the insulation, and keep plastic sheeting or foil off the room side of fibrous insulation, because both can trap moisture in the wall. The same federal guidance says foam board should stick fully to the foundation with no air gaps behind it, with tight seals at the edges, seams and any openings through the drywall. It suggests kraft-faced fiberglass batts, which have a paper backing, or latex paint on the drywall instead, so ask any contractor which one their plan uses.
Does foam insulation in a basement have to be covered?
Yes, in any room people live in, foam needs a covering such as drywall between it and the space. So if you're finishing the basement, plan on wallboard over the foam. Local code officials have the final say if a rule differs, and we go with what they tell us.
Do I need to insulate the rim joists in my basement?
Yes, the rim joists need to be air sealed and insulated along with the walls. They're the band of framing around the edge of the floor that sits on the foundation, and they leak a lot of air when they're skipped. Foam is a common choice there because it seals and insulates in one pass.
What kind of contractor installs insulation in California?
A contractor the state licenses for that trade, and its insulation and acoustical class covers installing any insulating material for temperature or sound control. Ask which license category a contractor holds and check it with the state licensing board. Monterey Park issues some permits only to people licensed for the proper trade, though a homeowner can sometimes get one as an owner-builder.
Foam options that go with basement insulation
Closed-cell foam insulation
Worth a look if your foundation walls feel cool and clammy and you want one layer that does the sealing too.
Open-cell foam insulation
Worth a look if you're finishing the basement and want the rooms above or beside it to stay quieter.