Wall insulation in Torrance CA - filled walls without tearing out drywall
Rooms that run cold in winter and hot by afternoon usually have empty walls. We fill them through small holes and patch them clean.
- Licensed and insured.
- Free quotes on site.
- Expect a reply within 1 business day.
Can my finished walls be insulated without tearing them out?
Yes. For wall insulation in Torrance houses with finished walls, we use drill and fill. We drill a small hole near the top of each cavity, the space between two studs, and blow loose insulation in through a hose until the cavity is full, so the wall stays where it is.
A lot of older houses around Torrance have walls with little or nothing in them, which is why one bedroom feels like a walk-in fridge while the hallway's fine. The price moves with how much outside wall you have, which side we drill from, what's already in the cavities and how much patching follows. The schedule turns on access, how full the rooms are and anything we find that has to come first, like a leak or old wiring, because insulation can't fix what it's covering. I'll give you a figure for your own house once I've looked at the walls.
How can you tell your walls need insulation?
Outside walls feel cold
On a cool night, put your hand on an outside wall and then on an inside one. If the outside wall feels a lot colder, there's usually little or nothing in it, and every winter you wait, the heater keeps losing that argument.
Rooms stay hot by evening
A room with a wall that takes the afternoon sun and stays hot well after dark often has empty cavities letting the heat straight through. The AC runs longer to keep up, and the power bill shows it month after month.
Drafts at outlets and switches
If you feel air moving at a plate on an outside wall, the wall is leaking, and it's often empty too. Insulation alone won't stop that draft, so the gaps need sealing first, or you keep paying to heat and cool the street.
Work that often goes with walls
Air sealing services
Closes the gaps around outlets, windows and pipes so your newly filled walls aren't fighting a draft.
Basement insulation
For houses with a basement, it covers the below-ground walls that stay cold after the rest of the house warms up.
How we do wall insulation in finished walls
I start by finding out what's in the walls now and what's behind the siding, because that decides which side we drill from. Drilling from outside breaks through the layer behind the siding that sheds water, so it has to be patched or replaced properly, while drilling from inside leaves that layer alone and puts the patches on your drywall, and when the siding or what's under it is in poor shape, I'd rather go in from inside than poke more holes in it. In a closed wall we blow in loose fill, because it packs around pipes, wires and the odd-shaped spaces that a precut roll can't reach. It has to go in packed tight, since loose fill that settles leaves a gap at the top of the wall, and we check that each cavity filled before the holes get patched.
Walls are usually only part of the story. If air is getting in around windows, outlets and the bottom of the walls, air sealing services, which means closing those gaps before insulating, often do as much for comfort as the fill itself. Not many houses here have one, but if yours does, basement insulation handles the walls below ground, which call for a different approach than the framed walls upstairs.
Drilling from inside
Suits houses where the stucco or siding is sound and best left alone, or where the outside is hard to get to. The patches end up on your drywall, where they get filled, sanded and painted.
Drilling from outside
Suits rooms that are packed with furniture, or homeowners who'd rather keep the work out of the house. The trade-off is that the siding and the water layer behind it have to be patched right.
Rolls for open walls
Suits a garage wall or a remodel where the studs are already exposed and evenly spaced. Precut rolls that match the spacing can be the cheapest way to fill those walls.
Get a free estimate for your walls
Send this and we'll reply within one business day to set a time for me to see your walls. The estimate is free with no obligation, and you can call (424) 318-3075 instead.
Call (424) 318-3075Why Torrance homeowners call SealPro Torrance Insulation Company about their walls
I look before I quote
I come out to every job and write the estimate myself, after I've seen what's in your walls. That way you don't pay to bury a leak or bad wiring behind new insulation.
Insulating houses since 2017
We've been at this since 2017, and it started with neighbors' attics here in Torrance. That's long enough to know which walls are worth filling, and I'll tell you when yours aren't.
Licensed and insured, inside your walls
We're licensed and insured. That counts for something when a crew is drilling holes in your house.
Based in Torrance, working nearby
We're based in Torrance and work in the cities around it. California's Energy Code covers changes to existing homes, not just new ones, and its rules for a house's outer shell depend on climate zone, so an older house doesn't get a pass just for being old.
On this job, what matters most is a wall that's full from bottom to top, because a half-filled cavity still leaks at the top. Send us a request or call (424) 318-3075 and I'll come take a look.
What happens after you call about your walls?
Call or send a request
Call (424) 318-3075 or use the form, and we'll set a time for me to come out. It helps to know roughly how old the house is and which rooms bother you most.
I look and write it up
I check what's in the walls now and what's behind the siding, then give you an estimate listing what gets fixed first, what gets sealed and what goes in. You'll know what you're paying for before we drill a single hole.
The crew drills and fills
A crew I trained fills each cavity, patches the holes and cleans up. If they turn up something that has to come first, like a damp spot or old wiring, I'll tell you before any insulation goes over it.
I check before we finish
I go over the fill and the patches myself before we call it finished. The crew doesn't pack up until I have.
Common questions
How do you insulate walls that are already closed up?
You drill a small hole into each cavity, blow insulation in until it's packed full and patch the hole. Inside, the hole gets a drywall or rigid foam plug and joint compound, and once that dries it's sanded smooth and painted. Once the paint's on, most people have to hunt for the patches.
How much does wall insulation cost around Los Angeles?
Wall insulation in the Los Angeles area usually costs about $1 to $4 per square foot. That's what the work generally runs across the area, not our price, and where a job lands depends on how much wall there is, which side we drill from and how much patching follows. I'll give you a figure for your house after I've seen the walls.
Can I stay home while my walls are being insulated?
Usually, yes, with blown insulation, but spray foam is a different story. One contractor writes that people can carry on at home while walls are dense-packed, meaning filled with tightly packed blown insulation, but that spray foam needs the house fully cleared. When we blow from inside, we cover the floor below the work and close off the area so the dust stays put.
What license covers insulation work in California?
The state licensing board has a class for it, the C-2 Insulation and Acoustical Contractor license, which covers installing any insulating material for temperature or sound control. Before anyone drills into your walls, it's fair to ask which license they hold.
How do I find out if my walls already have insulation?
You can check in any of three ways: look beside an outlet or switch box on an outside wall with the power shut off, cut a small hole in the drywall, or scan the wall with an infrared camera. The outlet is the easiest place to start. I check the same way when I come out, so you don't have to cut anything yourself.
Is there a rebate for blown-in wall insulation in Southern California?
Southern California Edison's Home Performance Plus program lists a wall insulation rebate for blown-in fiberglass, cellulose or rock wool. As listed, it's limited to homes under 3,000 square feet with certain heating and cooling equipment, so check the program's rebate page for current terms before you count on it.
Book a look at your walls
When you call (424) 318-3075 or send the form, have your home's rough square footage and the kind of heating and cooling you have handy, since the rebate turns on both.