Insulation Company in Hollywood, CA
Blown in insulation is the most common retrofit we perform in Hollywood, and for good reason: most of the homes here were built between 1920 and 1940, with balloon-frame construction and plaster walls that make traditional batt installation impractical. The shallow attics and converted storage spaces throughout the 90028 flatlands and Hollywood Hills demand a material that can flow around old wiring, odd framing, and tight clearances without disturbing the original structure. Call us at (844) 241-0737 when you’re ready to stop fighting a hot, drafty house.
Why Hollywood Homes Are Different
Hollywood’s housing stock is dominated by 1920s and 1930s Spanish Colonial and Craftsman bungalows, duplexes, and courtyard apartments. Many still have their original knob-and-tube wiring and no wall cavities to speak of, which means a retrofit insulation job here is rarely as simple as rolling out batts between standard studs. The plaster walls common to these buildings crack if you force material into odd spaces, and the balloon framing means wall cavities run open from foundation to attic, pulling hot air up through the house all summer long. Balloon-frame construction lets heat move freely; sealing the top plates in the attic is often the single biggest comfort fix for these older properties.
Hollywood’s climate shapes the work differently than a cold-weather city. Warm, dry summers mean we’re primarily keeping heat out and reducing solar gain, especially in west-facing walls and attics that bake through the afternoon. Mild winters make heat retention a secondary concern. Add in the fact that many homeowners in this area are long-term owner-occupants in rent-controlled buildings, and you have jobs that require working around tenants, respecting historic-preservation constraints, and coordinating access through tight courtyard entries. These aren’t obstacles you’ll find on a standard 1990s tract home in the Valley.
Our Main Hollywood Services
Most Hollywood homeowners call us about two things: an attic that’s turning the upstairs into an oven, or an older home that needs an air seal plus insulation but can’t accommodate traditional batts. Here’s what each one looks like on the ground in this city.
Attic Insulation in Hollywood
Attic insulation in Hollywood is the highest-impact upgrade for most of the bungalows and duplexes we see. Attics here are often shallow, and many have been partially converted into storage or a bonus room, which means we’re frequently working around recessed lights, old venting, and framing that was never designed with modern insulation depth in mind. Air sealing comes first: we seal every top plate, wire penetration, and light fixture before any material goes in. Read the full breakdown on our Attic Insulation in Hollywood page, including what it costs in this market and the signs your attic is under-insulated.
Spray Foam Insulation in Hollywood
Spray foam earns its keep in Hollywood when we’re dealing with homes that have no wall cavities, open floor plans, or a converted attic with an unvented roof assembly. Closed-cell foam air-seals and insulates in one pass, which matters in older buildings where we can’t easily add a continuous air barrier any other way. The tight clearances and irregular framing in these 1930s homes are exactly the situations where foam outperforms batts. See what’s involved and what drives the price in this market on our Spray Foam Insulation in Hollywood page.
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 Hollywood
Blown in insulation is the workhorse retrofit for Hollywood’s pre-war housing stock. It installs from a hose, so we can fill the irregular cavities in balloon-frame walls and shallow attic bays without cutting open plaster ceilings or disturbing the original architecture. In a city where heat rejection matters more than heat retention, a dense, even blanket of blown-in material across the attic floor stops the sun’s energy from radiating down into the living space. For a deeper look at the materials and process, see our Blown In Insulation hub page.
Cellulose Insulation
Signs you need it
Rooms under the attic get hot by mid-morning in summer, or you can see bare ceiling joists and sparse, settled insulation when you pop your head up through the attic hatch.
What it costs in Hollywood
Blown-in cellulose for an attic in Hollywood typically runs $1.50 to $2.30 per square foot, with attic jobs ranging from $2,800 to $4,800, and labor rates of $45 to $75 per hour for dense-pack installations.
How we do it
We air-seal every penetration and top plate first, then blow the cellulose to a uniform depth with a calibrated machine, checking density with a gauge as we go.
Loose Fill Insulation
Signs you need it
Existing attic insulation looks thin, uneven, or disturbed from old wiring work or roof repairs, and your upstairs feels several degrees warmer than the floor below.
What it costs in Hollywood
Loose fill insulation in Hollywood typically runs $1.10 to $2.00 per square foot, with most residential jobs landing between $2,000 and $4,000 including air sealing, and labor rates of $45 to $75 per hour.
How we do it
We use a blowing machine to feed loose material through a long hose, layering it across the attic floor and fluffing it to a consistent depth over the entire plane.
What Blown In Insulation Costs in Hollywood
| Item | Typical range in Hollywood |
|---|---|
| Blown-in attic installation (entire attic) | $2,000 – $4,200 |
| Dense-pack blown-in for existing walls | $2.25 – $4.00 per sq ft |
| Labor rate for an insulation crew | $45 – $75 per hour |
Is blown-in insulation worth it for an older Hollywood bungalow?
Yes, almost always. The material fills irregular cavities that batts can’t reach, and in a city where the sun drives indoor temperatures, an even attic layer makes a noticeable difference. Call (844) 241-0737 for a free estimate.
Can you blow insulation into walls with knob-and-tube wiring?
No, we do not blow insulation into wall cavities that contain active knob-and-tube wiring. It’s a fire hazard and against code. We’ll assess the wiring first and recommend the right approach for your home.
Brands We Service in Hollywood
We install Knauf fiberglass, Rockwool mineral wool, CertainTeed fiberglass, and Icynene spray foam, with materials stocked and ordered from local distributors so turnaround on Hollywood jobs stays short. Curious what each material does best? Browse our brands page for the full breakdown.
Pricing for Insulation Company in Hollywood, CA
| Service | Typical range in Hollywood |
|---|---|
| Blown-in attic insulation (whole attic) | $2,000 – $4,200 |
| Dense-pack blown-in for existing walls | $2.25 – $4.00 per sq ft |
| Loose fill attic insulation | $1.10 – $2.00 per sq ft |
| Blown-in cellulose attic insulation | $1.50 – $2.30 per sq ft |
| Blown-in fiberglass attic insulation | $1.20 – $1.90 per sq ft |
| Spray foam insulation (open-cell) | $1.80 – $2.80 per sq ft, 1 – 2 inches |
| Spray foam insulation (closed-cell) | $2.20 – $3.50 per sq ft, 1 – 2 inches |
| Mineral wool batt installation | $2.00 – $4.50 per sq ft, including labor |
| Fiberglass batt installation | $1.00 – $3.00 per sq ft, including labor |
| Insulation removal (old, damaged, or infested) | $1.50 – $4.00 per sq ft |
| Basic air sealing package | $500 – $1,800 |
Prices in Hollywood push toward the upper end of these ranges when attics are shallow, access is tight, or tenants need to be worked around. We quote upfront and in writing, so the number on your proposal is the number you pay.
Neighborhoods We Serve in Hollywood
We regularly work across the 90028 zip code and the surrounding Hollywood area, from the flatlands around Sunset and Santa Monica Boulevards up into the hills. We know which blocks have converted attics, which courtyard buildings have tenant-access issues, and which street-facing walls catch the worst afternoon sun.
- Hollywood Heights
- Whitley Heights
- Hollywood Dell
- Spaulding Square
- Little Armenia
We typically respond to Hollywood service calls within one to two business days, and free estimates are available at (844) 241-0737.
Service Area – Cities Near Hollywood
Our crews serve Hollywood and the surrounding communities. If you’re just over the border, we also work in Universal City, CA, West Hollywood, CA, Koreatown, CA, and Echo Park, CA. Each of those areas has its own housing quirks, but the material-matching approach is the same.
Serving Hollywood, CA — Our Local Coverage Area
We’re based in the Hollywood 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 Hollywood
We usually reach Hollywood homes within one to two business days for estimates and installs. Emergency situations, like a ceiling opened up during a reno and exposed insulation, get priority scheduling. Call (844) 241-0737 to check the current calendar.
Most straightforward attic and wall insulation retrofits don’t require a building permit in Los Angeles. But if the work affects historic status, rent-controlled units, or involves spray foam in certain unvented assemblies, we’ll flag what’s needed before we start.
Yes. We handle tenant-occupied jobs regularly, coordinating access, scheduling around quiet hours, and keeping workspaces clean. Most of our work happens in attics or exterior walls, so disruption inside the units is minimal.
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 Hollywood Customers Say
"He did a blower door test before and after and gave me the numbers. I like being able to see the difference rather than being told about it."
— Ebony Dawson"Handled the utility rebate paperwork, which knocked a real amount off the final cost."
— Adriana Vargas"Installed baffles at the soffits so the new insulation didn't block the ventilation, which the previous contractor apparently never considered."
— Gilbert Hernandez