Wall insulation in Baldwin Park CA - rooms that stay cooler without tearing out walls
Hot bedrooms and drafty exterior walls in an older house? We fill the empty cavities through small holes, from the side that does less damage.
Can you add insulation to the walls of an older house?
Yes. At Baldwin Park Insulation and Spray Foam, wall insulation in Baldwin Park usually means filling the empty spaces between the studs through small holes, so an older house gets insulated walls without the drywall or the siding coming off.
Most calls start the same way, with a bedroom that's hot by late afternoon, a power bill that keeps climbing, and walls with nothing in them but air. The price moves with how much wall we're filling, which side we drill from, what the siding is and what turns up inside, like old wiring that has to be handled first, and the schedule turns on whether new siding is coming and whether the job needs a permit. We're licensed and fully insured, and that matters here, because California requires a contractor license even for small jobs under $1,000 once the work needs a permit or the person doing it brings in help. The estimate tells you what I found, what I'd do first and what it costs.
What happens after you call about your walls?
Call or send us a message
Call (626) 869-2237 or use the form, and tell us which rooms bother you. We'll set a time for me to come out.
I come out and look
I come out myself, look at the walls, the wiring and the siding, and walk you through what I found and what I'd do first. You leave with the method, which side we'd drill from, and a price for your house.
We pull any permit needed
When the job needs a permit, we pull it and set up the inspections, after checking which office covers your address, because around here it isn't the city every time. In Baldwin Park that's the city's Building and Safety Division, which issues permits and inspects the work and is open Monday through Thursday, closed Fridays.
Our crew does the work
Our own crew does the drilling, filling and patching. I check the walls myself before we call it done.
How we do wall insulation, in the right order
The first thing I ask is whether new siding is planned in the near future, because if it is, that's the time to do the walls, and nobody wants to pay to patch siding they're about to tear off. If not, I look at the house's age and the wiring before anything else, for the reasons in the questions below, then pick the side where drilling does less damage, inside or out. Before anyone picks up a drill, I walk the rooms with you and show you where every hole will go. Our crew drills into each stud space, blows the insulation in until the cavity is full and tight, then plugs and patches the holes. Your satisfaction, guaranteed.
Walls are only part of it. Air that leaks in around outlets, windows and the attic hatch slips right past new insulation, so we often pair this job with air sealing services, which means closing those gaps so the insulation isn't fighting a draft. If your house has a lower level with bare block or concrete walls, basement insulation is its own job, and I can look at it on the same visit. We do this work in Baldwin Park and the cities around it across the San Gabriel Valley, from West Covina and El Monte to Azusa and Rosemead.
Get a wall insulation plan for your house
We reply within one business day to set a time for me to come out. The estimate at your property is free and obligation-free, and you'll know what I found and what I'd do first before you decide anything.
Wall insulation questions from Baldwin Park homeowners
How do I insulate walls that are already finished without tearing them out?
Most finished walls get insulated by drill and fill, where small holes go into each empty stud space, blown-in insulation, loose fill pushed through a hose, goes in, and the holes are sealed. The loose fill reaches odd-shaped spots a batt can't, and packed tight enough it also slows air moving through the wall. Each cavity has to be filled completely and densely, though, or the insulation settles and leaves gaps.
Is it better to blow wall insulation in from the inside or the outside?
Usually whichever side does less damage, and on a lot of houses that's the inside, because drilling from outside breaks through the drainage plane, the water barrier behind the siding, and that then has to be patched or replaced. Going in from outside can also mean pulling small pieces of siding, and the patched holes may show unless new siding or trim covers them. Working from inside leaves that water barrier alone, so the outside of the house needs less repair.
How much does wall insulation cost in Baldwin Park?
Across the US, installing blown-in wall insulation usually costs about $4 to $4.50 per square foot, and that's the market's number, not a quote from us. Siding repair or wiring work found along the way adds to it. Your own price comes from the estimate, once I've seen the walls.
What needs to be checked before insulating walls in an older house?
Lead paint and old wiring are the two big ones. If your house was built before 1980, lead safety rules may apply depending on how much of the wall gets disturbed, and the National Electrical Code bars insulation from going on or around knob and tube wiring, the old wiring strung on porcelain knobs. If I find it, I'll tell you before anything goes in, because I'd rather say so now than be the one who covered it up.
What is the best time to insulate walls if I'm replacing my siding?
Right before the new siding goes on, because with the old siding off and the walls open, it's the easiest and least expensive time to insulate and air seal them. A continuous layer of insulation over the outside of the walls at that point usually costs only a little more than the siding itself, and it often pays for itself in energy savings.
How do I get my house ready for wall insulation?
Clear the spots where the holes usually go, which are above door frames, above and below windows, and behind cabinets on exterior walls. If a bathroom sits on an outside wall, a few tiles may need to come off before drilling, and I'll tell you up front how they go back on. Pulling furniture a couple of feet off those walls helps too.
Other work that often goes with wall insulation
Air sealing services
Drafts through outlets, window gaps and the attic hatch keep a room uncomfortable even with full walls, so closing them is often the first thing I'd suggest.
Basement insulation
A lower level with bare block or concrete walls loses heat its own way and needs a different approach than drilling and filling.
Find out what's inside your walls
Call (626) 869-2237 or use the form, and if you know the year the house was built, the siding type, the rough wall area and anything about the wiring, have it handy so the first visit covers more.