Insulation Company in Santa Monica, CA
Old walls, damp air, and a marine layer that rarely lifts: that combination is why blown in insulation in Santa Monica is a different job than it is ten miles inland. We’re Hollywood Insulation Co, and we’ve served this city’s bungalows, stucco tract homes, and mid-century apartments since 2018. Our focus here is correcting what decades of coastal moisture does to under-insulated homes: sagging batts, cold spots in bedrooms, rooms that never quite warm up even when the heat runs. Call us at (866) 605-6949 and we’ll tell you what’s actually happening inside your walls.
Why Santa Monica Homes Are Different
Santa Monica is a coastal marine layer zone. That’s not a slogan. It means your home sits in damp, salty air much of the year, especially from May through August when the fog hangs until noon. Insulation here fails differently than in the hot-dry San Fernando Valley: it sags, it compresses, it soaks up condensation from the inside, and paper facers grow mold. Your 1920s Craftsman bungalow on a tree-lined street north of Wilshire or 1950s stucco rental off Pico Boulevard probably has empty wall cavities or a thin layer of something poured decades ago. The real problem isn’t just low R-value; it’s that moisture has turned what little insulation exists into a liability. A Santa Monica retrofit has to be moisture-tolerant and mold-resistant first, thermal second. That’s the only order that works here.
Stucco-over-wood-frame construction dominates, and many of these homes still carry knob-and-tube wiring or early Romex in the walls. That matters because blown-in work has to be installed around aging electrical, not carelessly over it. Vented crawlspaces under the 90402 bluff homes near San Vicente and Ocean Park stay damp for weeks at a time; we routinely pull out compressed fiberglass and moldy paper facers in those cavities. The right specification here is usually a tighter, moisture-resistant build, not a heavier one.
Our Main Santa Monica Services
Most Santa Monica homeowners call us for one of two jobs. Here’s what each one actually involves here.
Attic Insulation in Santa Monica
Attics in Santa Monica are small, low, and often under-vented because so many homes were built before ridge vents were standard. Combined with the marine layer, that means stagnant damp air sitting against the ceiling insulation all night. We correct that with dense, correctly spec’d attic coverage that works with the existing venting rather than against it. Attic Insulation in Santa Monica is a full service we run regularly across the 90401, 90402, and 90405 zip codes, and we know which homes need air sealing before we ever add material.
Spray Foam Insulation in Santa Monica
Spray foam makes particular sense in Santa Monica where air leaks around stucco penetrations and can lights pull damp outdoor air into wall cavities. We install both open-cell and closed-cell systems, using Icynene and Demilec products depending on whether the job calls for breathability or a vapor barrier. Spray Foam Insulation in Santa Monica covers full wall-cavity foam, rim joist sealing, and attic deck applications, and we specify the system based on the moisture load in your part of the city.
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 Santa Monica
Blown in insulation is the workhorse retrofit for Santa Monica’s older housing stock. When a 1920s bungalow near the bluffs or a 1960s stucco duplex off Lincoln Boulevard has almost nothing in the walls, blowing in dense-pack cellulose or fiberglass from the outside through small holes is the least invasive way to fix it. The marine layer changes what works: we lean on moisture-managed cellulose and fiberglass formulations that don’t sag or grow mold the way old batts do. Blown In Insulation is one of the three methods we install every week in this city, and it’s usually the right call when the wall cavities are open, the attic is accessible, or you want to keep existing wall finishes intact.
Cellulose Insulation
Signs you need it
Rooms that stay cold in winter, high utility bills, and visible settling or gaps in existing attic insulation all point to a cellulose retrofit.
What it costs in Santa Monica
Blown-in cellulose for a typical Santa Monica attic or wall retrofit runs $1.20 to $2.50 per square foot installed, with full-home retrofits commonly landing between $5,000 and $14,000 depending on square footage and access.
How we do it
We blow GreenFiber recycled cellulose into attic floors or dense-pack it into closed wall cavities through 2-inch access holes, then patch and finish each hole to match.
Blown In Attic Insulation
Signs you need it
Your upstairs rooms are noticeably warmer than downstairs in summer, or the insulation in your attic looks flattened, gray, and compressed instead of fluffy and even.
What it costs in Santa Monica
Blown-in attic insulation in Santa Monica typically runs $1.50 to $3.00 per square foot installed, with a standard 1,200-square-foot attic landing around $1,800 to $3,600.
How we do it
We remove or level existing material first, air-seal around can lights and ceiling penetrations, then blow fresh insulation to the depth required for your target R-value.
Blown In Fiberglass Insulation
Signs you need it
Your attic has fiberglass batts that have shifted or compressed below the joist tops, leaving gaps where conditioned air escapes.
What it costs in Santa Monica
Blown-in fiberglass typically runs $1.10 to $2.30 per square foot installed in Santa Monica, with most attic jobs falling between $1,300 and $3,200 depending on existing material and depth.
How we do it
We run loose-fill fiberglass through a calibrated hopper and hose, laying down a consistent, fluffed layer that won’t settle the way hand-placed batts can.
What Blown In Insulation Costs in Santa Monica
| Item | Typical range in Santa Monica |
|---|---|
| Blown-in attic insulation (per sq ft installed) | $1.50 – $3.00 |
| Blown-in cellulose wall retrofit (per sq ft installed) | $1.20 – $2.50 |
| Full-home blown-in retrofit (typical range) | $5,000 – $14,000 |
Is blown in insulation worth it in Santa Monica’s climate?
Yes, and the reason is moisture control more than heat. Santa Monica’s marine layer means damp air sits against uninsulated walls for months, and blown-in material with moisture-resistant treatment stops the condensation cycle old batts can’t. Expect more even temperatures and lower heating and cooling costs year-round.
Can you blow insulation into walls without removing the stucco?
Yes. We access wall cavities through small holes drilled from the exterior or interior, blow dense-pack material, then patch to match. It’s the standard approach for Santa Monica’s stucco-over-wood-frame homes and keeps the original 1940s or 1950s finish intact. Call (866) 605-6949 for a wall-by-wall assessment.
Brands We Service in Santa Monica
We carry Rockwool mineral wool, CertainTeed fiberglass, and both Icynene and Demilec spray foam systems, plus GreenFiber cellulose for blown-in work. Because we stock material from eight manufacturers, we don’t have to talk you into the one product that happens to be on the truck. Learn more on our our brands page.
Pricing for Insulation Company in Santa Monica, CA
| Service | Typical range in Santa Monica |
|---|---|
| Blown-in attic insulation (per sq ft installed) | $1.50 – $3.00 |
| Blown-in cellulose wall retrofit (per sq ft installed) | $1.20 – $2.50 |
| Blown-in fiberglass (per sq ft installed) | $1.10 – $2.30 |
| Full-home blown-in retrofit | $5,000 – $14,000 |
| Attic insulation (batt or blown, per sq ft) | $1.50 – $4.50 |
| Spray foam attic or rim joist (per sq ft) | $3.00 – $7.00 |
What pushes a Santa Monica price up: tight crawlspaces under 1920s bungalows, dense-pack wall retrofits that require patching dozens of small holes, and older wiring that slows down the work. We give you an upfront price before we start, and that number doesn’t change unless you change the scope.
Neighborhoods We Serve in Santa Monica
We run crews across the city every week, from the bluff-top streets north of Montana in 90402 down through Wilshire Montana, Mid-City, Sunset Park, and Ocean Park. Each of these neighborhoods has its own mix of building eras, but the common thread is old framing, stucco exteriors, and the marine layer pressing in from the west. Here are the areas we see most often:
- Ocean Park
- Sunset Park
- Wilshire Montana
- North of Montana (90402)
- Mid-City Santa Monica
Typical response for a Santa Monica insulation call is same day or next morning, depending on when you reach us and what part of the city you’re in. Estimates are always free.
Service Area – Cities Near Santa Monica
Our vans run up and down the west side every day. If you’re just outside Santa Monica, we also serve Venice, CA, Century City, CA, Culver City, CA, and Beverly Hills, CA. The coastal moisture and older housing stock issues don’t stop at the Santa Monica border, and neither do we.
Serving Santa Monica, CA — Our Local Coverage Area
We’re based in the Santa Monica 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 Santa Monica
Most jobs in Santa Monica are scheduled within 24 to 48 hours of your call. For attics that are actively losing heat or crawlspaces with visible moisture damage, we can often get a technician out same day. Call (866) 605-6949 and ask for the Santa Monica schedule.
Most insulation retrofits do not require a city permit in Santa Monica, though larger projects that involve structural changes or new venting sometimes do. We’ll check the scope of your job against current city requirements and tell you up front if anything needs to be pulled.
Yes. A large share of Santa Monica’s older housing stock is rental units and mid-century apartment buildings, and we work with property managers and owners on tenant-occupied retrofits. We coordinate access, keep work areas clean, and schedule around your tenants’ needs.
If your Santa Monica home is drafty, unevenly heated, or expensive to condition, call Hollywood Insulation Co at (866) 605-6949. We’ll tell you what’s actually in your walls and what it will take to fix it, with an honest price and no pressure.
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 within 30–60 min.
- 4You approve before work beginsNothing starts until you say go.
What Santa Monica Customers Say
"Plastic laid from the front door to the attic hatch and they vacuumed the hallway afterward."
— Heather Walsh"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."
— Cole Sullivan"Found and sealed a gap around the chimney chase that was basically an open chimney to the attic."
— Brandon Wong