Insulation Company in Los Angeles, CA
Blown in insulation is the workhorse retrofit for Los Angeles homes built before energy codes existed. Most of the housing stock between South LA and Koreatown went up in the 1920s through 1940s, when nobody considered insulating walls or attic cavities. That means today’s homeowners carry the full weight of a long, hot, sunny season with almost no thermal barrier. We’re a dedicated insulation contractor serving Los Angeles from Van Nuys, and we install blown in fiberglass, cellulose, and mineral wool so you’re not paying to air-condition your attic. Call (855) 382-3451 for a free estimate on any insulation project in Los Angeles.
Why Los Angeles Homes Are Different
Los Angeles has almost no attic insulation problem in the winter-heating sense. The real battle is heat gain. The low angle of the sun in spring and fall hits west-facing walls and roof cavities for hours longer than most people realize, and by July, an uninsulated attic can sit at 140 degrees or more. That superheated air radiates down through ceilings all evening, long after the outside temperature drops. The 90005 through 90008 ZIP codes include a stretch of 1920s and 1930s single-family bungalows, Craftsman homes, and Koreatown and Westlake apartment courts where stucco over wood frame meets little or no cavity insulation. Many of these buildings still have knob-and-tube wiring in the walls, which means insulation retrofits require care around existing electrical. The dry climate is actually an advantage: we don’t deal with the vapor-drive headaches that dominate insulation specs in humid markets. In Los Angeles, the job is stopping radiant heat at the attic floor and sealing the paths where hot outside air pushes into living space.
Our Main Los Angeles Services
The two services Los Angeles homeowners call about most are attic insulation and spray foam, and each solves a different version of the same problem.
Attic Insulation in Los Angeles
Attic insulation in Los Angeles is where most homes lose the most, and the fix usually starts with air sealing around ceiling penetrations, can lights, and plumbing chases before any new material goes down. The pre-war housing stock here often has shallow attic cavities, so we’re selective about material and depth to keep soffit vents from getting blocked. Attic Insulation in Los Angeles covers the full scope, from batts and blankets to blown in options, sized to the actual roof configuration of your home.
Spray Foam Insulation in Los Angeles
Spray foam in Los Angeles earns its keep in the tight, awkward spaces where batts and loose fill can’t reach or won’t air seal, like rim joists, knee walls, and the unvented roof decks common in older Koreatown apartment courts. The hot attic air problem in those buildings often calls for closed-cell foam against the roofline rather than another blanket on the floor. Spray Foam Insulation in Los Angeles covers both open-cell and closed-cell applications, including when each makes sense in an LA climate.
What happens when you call
- 1
A real person answersNo phone trees — you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Blown In Insulation in Los Angeles
Blown in insulation is the most common retrofit we perform in Los Angeles because it’s the cleanest way to add real thermal resistance to an existing attic without tearing out ceilings or walls. In the 90005 through 90008 corridor, where 1920s bungalows and apartment courts dominate, attics are often shallow, irregular, and interrupted by framing, which makes loose fill far better suited than rigid batts. The material flows around obstacles and fills the entire cavity, cutting the radiant heat path from the roof deck to the ceiling below. We install blown in fiberglass and cellulose from brands like Owens Corning, Johns Manville, and GreenFiber, matched to the home’s existing conditions rather than whatever happens to be on the truck. For a deeper look at the method, see our Blown In Insulation page.
Cellulose Insulation
Signs you need it
Your attic insulation has settled to below the top of the ceiling joists, and rooms directly under the attic stay noticeably hotter than the rest of the house by late afternoon.
What it costs in Los Angeles
Blown in cellulose in Los Angeles typically runs $1.50 to $2.80 per square foot installed, depending on the depth needed to reach the target R-value.
How we do it
We air seal the attic floor first, mark the final depth lines on the joists, then blow GreenFiber cellulose through a hose to the exact R-value the job specifies, keeping the fill level consistent across every bay.
Blown In Attic Insulation
Signs you need it
Your upstairs ceiling is hot to the touch in summer, your air conditioner runs long after the sun goes down, and you can see bare drywall between the joists when you look in the attic.
What it costs in Los Angeles
A full blown in attic insulation job in Los Angeles typically lands between $1,200 and $2,800 for a standard 1,200 to 1,800 square foot home, with the final figure set by depth, access, and prep work.
How we do it
We seal penetrations and bypasses, verify that soffit vents stay clear with baffles where needed, then blow the loose fill to the specified depth and R-value, working from the far end of the attic back toward the access hatch.
What Blown In Insulation Costs in Los Angeles
| Item | Typical range in Los Angeles |
|---|---|
| Blown in cellulose (per sq ft installed) | $1.50 – $2.80 |
| Blown in attic insulation (standard 1,200 – 1,800 sq ft home) | $1,200 – $2,800 |
| Attic air sealing prep before blow in | $400 – $1,000 |
Does blown in insulation actually make a difference in Los Angeles heat?
Yes. In an LA summer, an uninsulated attic can reach 140 degrees, and that heat pushes down through the ceiling for hours. Proper blown in insulation cuts that transfer substantially and lets your AC cycle off for longer stretches.
Call (855) 382-3451 and we’ll assess your attic depth and give you an exact number, free.
How long does a blown in insulation job take in Los Angeles?
Most single-family homes in Los Angeles are done in half a day to a full day, including air sealing prep. Larger or hard-to-access attics may run into a second day. We schedule around your availability and keep the work area clean.
Call (855) 382-3451 to get a time estimate for your specific home.
Brands We Service in Los Angeles
We carry Owens Corning and Johns Manville blown in fiberglass, Knauf batt products, and GreenFiber cellulose for recycled-content jobs. Because we stock competing brands, the recommendation follows the home’s needs, not inventory surplus. See our brands for the full line.
Pricing for Insulation Company in Los Angeles, CA
| Service | Typical range in Los Angeles |
|---|---|
| Blown in insulation (per sq ft installed) | $1.50 – $3.50 |
| Blown in attic insulation (standard 1,200 – 1,800 sq ft home) | $1,200 – $2,800 |
| Air sealing before insulation (attic prep) | $400 – $1,000 |
| Attic insulation (batts, standard attic) | $1.00 – $2.50 per sq ft |
| Spray foam insulation (open-cell) | $1.50 – $3.00 per board foot |
| Spray foam insulation (closed-cell) | $2.00 – $4.00 per board foot |
| Whole-home insulation retrofit (1,500 sq ft home) | $4,000 – $9,000 |
| Air duct insulation replacement | $1,500 – $3,500 |
| Insulation removal and replacement | $500 – $1,500 |
What pushes the price up in Los Angeles is usually attic access: tight scuttles, low clearance, and older wiring that needs to be worked around all add labor. We give upfront pricing before any work starts, so the number we quote is the number you pay unless you change the scope.
Neighborhoods We Serve in Los Angeles
We work across central and South Los Angeles, and we know the housing stock in each area well enough to know what the job will look like before we arrive. That matters when the difference between a clean retrofit and a mess is knowing how a 1920s Craftsman is framed versus a 1940s stucco bungalow.
- Koreatown
- Westlake
- South LA
- Mid-City
- Arlington Heights
Typical response time across the Los Angeles service area is 24 to 48 hours for an estimate.
Service Area – Cities Near Los Angeles
Our trucks run regularly from Los Angeles into the surrounding neighborhoods, so if you’re in Koreatown, CA, Echo Park, CA, Silver Lake, CA, or Hollywood, CA, we can schedule without the long wait. Each of those areas has its own mix of pre-war and mid-century housing, and we’ve worked in all of them enough to know what to expect.
Serving Los Angeles, CA — Our Local Coverage Area
We’re based in the Los Angeles area and know this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs About Insulation Company in Los Angeles
In most cases we can have someone at your property in Los Angeles within 24 to 48 hours for an estimate. If the job is an emergency, such as exposed wiring in an attic that needs sealing before insulation, we do our best to prioritize it.
Most insulation retrofits in Los Angeles don’t require a building permit, but some larger projects that involve structural work or major changes to a roof assembly might. We can tell you what applies to your specific home when we see it. We also work around HOA requirements where they exist.
We cover the full city of Los Angeles from our base in Van Nuys, including the 90005, 90006, 90007, and 90008 ZIP codes and surrounding areas. If you’re not sure whether we reach your street, call (855) 382-3451 and we’ll confirm on the spot.
What happens when you call
- 1A real person answersNo phone trees — talk to a local insulation pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3A background-checked tech heads outLicensed & insured, typically same-day.
- 4You approve before work beginsNothing starts until you say go.
What Los Angeles Customers Say
"Work is good and the house is noticeably more comfortable. There was insulation debris left in the hall closet under the attic access that I had to clean up."
— Maya Singh"Attic was at maybe R-11 from the 1970s and blown in over the top would have just buried the problem. They removed the old material, air sealed the top plates and penetrations first, then blew in to R-49. The upstairs is a completely different house in August."
— Christine Park"Handled the utility rebate paperwork, which knocked a real amount off the final cost."
— Chris Kowalski