Insulation Company in Hollywood, CA
Blown in insulation is the most common service we perform for Hollywood homeowners, and for good reason. The 1910s to 1940s wood-frame bungalows, courtyard apartments, and dingbat-style buildings that dominate the flats were built long before insulation was standard, leaving attics and walls largely empty. Add in Hollywood’s intense summer sun beating down on those old roofs, and you get homes that bake upstairs while the AC runs nonstop. East Los Angeles Insulation Co has served Hollywood since 2018, and we carry eight insulation brands so we’re never forcing one product into the wrong house. Call (866) 566-0304 and we’ll look at what you actually need.
Why Hollywood Homes Are Different
Hollywood’s housing stock splits into two eras with very different insulation problems. The older flats, especially south of Franklin and east toward Virgil Village, are filled with 1920s bungalow courts and courtyard apartment buildings framed in wood, sided in stucco, and built before R-value was even a concept. Those attics are usually empty or holding a thin layer of dust. The walls sit between knob-and-tube-era framing and have little to no cavity fill. On the other side, the newer mid- and high-rise condos around Hollywood Boulevard and Sunset need dense acoustic and fire-rated assemblies, not just a thermal layer.
Climate tells the rest of the story. Hollywood’s summers are hot and long, with sun that punishes unvented attics and turns upstairs bedrooms into ovens by 2 p.m. The primary job here is heat reflection, attic ventilation, and stopping solar gain, not freeze protection. And while the winters are mild, Hollywood’s rain comes hard for a few weeks at a time, and a roof leak into an old attic can soak insulation without anyone noticing until the ceiling stains. Dry air hides moisture problems well. If you live in one of the older Hollywood courts, your first call is usually about noise through shared walls more than anything else.
Our Main Hollywood Services
Most Hollywood homeowners call us about two things: redoing an old attic, or sealing and insulating with spray foam where traditional batts can’t do the job. Here’s how each one works in this city.
Attic Insulation in Hollywood
In Hollywood’s older bungalows, attics are usually the single biggest leak point in the house. Heat pours in through the roof deck in summer, and whatever cool air the AC makes escapes up through the ceiling plane. We start with air sealing around plumbing penetrations, wiring holes, and the top plates of interior walls, then bring the attic to the R-value that makes sense for a hot, sunny climate. Loose fill or batts both work; the answer depends on your roof pitch, access, and whether you have old knob-and-tube wiring that needs clearance. Read more about how we approach this specific to Hollywood here: Attic Insulation in Hollywood.
Spray Foam Insulation in Hollywood
Spray foam is the right tool for Hollywood’s tighter, harder-to-reach spaces: knee walls in the old bungalows, rim joists on crawlspace homes, and the lid of a garage under a converted bedroom. Closed-cell foam is also the most effective option for blocking street noise from Sunset Boulevard or the 101 when it bleeds through an old wall. We install open- and closed-cell systems from Icynene and Demilec, and we’ll tell you honestly if foam is overkill for your situation and a less expensive fill will do. Here’s the full story on foam in Hollywood: Spray Foam Insulation in Hollywood.
Blown In Insulation in Hollywood
Blown in insulation is the fastest, least disruptive way to get R-value into the old attics and wall cavities that dominate Hollywood’s housing stock. Most Hollywood homes built before 1950 have zero cavity fill, which means the only thing between the roof deck and your ceiling is air. We blow loose fill to a consistent depth across the attic floor or dense-pack it into closed wall cavities, and we do it without tearing out drywall or moving you out of the house. If you want to understand the full scope of this service, see Blown In Insulation.
Cellulose Insulation
Signs you need it
You have an older attic with no fill or a thin, settled layer that no longer covers the joists, and your upstairs rooms gain heat fast in the afternoon.
What it costs in Hollywood
Blown cellulose in a typical Hollywood attic runs $1,800 to $3,600 depending on square footage, access, and how much air sealing is needed first.
How we do it
We seal the bypasses, lay down vent chutes where needed, and blow the cellulose to a uniform depth that hits your target R-value without blocking soffit vents.
Blown In Attic Insulation
Signs you need it
Your attic floor has less than six inches of material across most of its area, or you can see bare spots where insulation has shifted and settled over the years.
What it costs in Hollywood
Blown in attic insulation in Hollywood runs about $1,500 to $2,900 for a standard bungalow attic, with larger or multi-story homes landing at the upper end.
How we do it
We access the attic through the existing hatch or a gable vent, run a hose from the truck, and build the fill depth up to your target R-value in a single pass.
Blown In Cellulose Insulation
Signs you need it
You want a higher-performing attic fill with better resistance to convective heat loss than fiberglass, especially in an older Hollywood home with irregular joist spacing.
What it costs in Hollywood
Blown in cellulose in Hollywood costs $1,800 to $3,200 for most attics, and dense-packing walls runs higher depending on the number of cavities opened.
How we do it
We load bales of cellulose into the hopper, and the machine fluffs the material at the hose end while we apply it at measured density for attics or dense-pack for walls.
Loose Fill Insulation
Signs you need it
You have open attic joists, an accessible attic hatch, and an existing layer that’s thin, packed down, or contaminated by rodents, and you want a clean, uniform blanket.
What it costs in Hollywood
Loose fill insulation in Hollywood runs $1,500 to $2,800 for a one-story attic area, with add-on costs if we remove old material or add baffles.
How we do it
We blow fiberglass or cellulose loose fill across the attic floor to the required depth, keeping a close eye on depth markers so the R-value is even wall to wall.
What Blown In Insulation Costs in Hollywood
| Item | Typical range in Hollywood |
|---|---|
| Blown in attic insulation (standard bungalow) | $1,500 – $2,900 |
| Blown in cellulose attic fill | $1,800 – $3,200 |
| Dense-pack wall insulation (per cavity set) | $2,200 – $4,600 |
How long does blown in insulation last in a Hollywood attic?
Cellulose and fiberglass loose fill last 20 to 30 years in a dry Hollywood attic, but it can settle or get matted down by roof leaks. The bigger risk here is moisture, which Hollywood’s winter rains can push into an attic and hide until the material loses its loft. Have it checked every few years. Call (866) 566-0304 if you suspect old, settled fill.
Can you blow insulation into the walls of an old Hollywood bungalow without tearing them open?
Yes. We dense-pack blown insulation into wall cavities through small access holes from the exterior or interior, and the material compacts enough to stay in place. It’s the standard fix for uninsulated 1920s wood-frame walls in Hollywood. Call (866) 566-0304 and we’ll tell you if your walls are a good candidate.
Brands We Service in Hollywood
We stock and install products from CertainTeed, Icynene, Demilec, and GreenFiber, among others, so the material is matched to the Hollywood home rather than whatever is on the truck. Most attic and wall fills are in our local yard and ready for same-week scheduling. See our brands for the full list and what each one does best.
Pricing for Insulation Company in Hollywood, CA
| Service | Typical range in Hollywood |
|---|---|
| Blown in attic insulation | $1,500 – $2,900 |
| Blown in cellulose attic fill | $1,800 – $3,200 |
| Dense-pack wall insulation | $2,200 – $4,600 |
| Attic insulation (full job, old bungalow) | $2,200 – $5,700 |
| Spray foam knee walls | $1,900 – $3,800 |
| Spray foam rim joists | $1,400 – $2,700 |
| Closed-cell spray foam (whole wall or ceiling) | $5,200 – $11,300 |
| Open-cell spray foam (unvented attic) | $4,100 – $8,600 |
| Basement or crawlspace insulation | $1,300 – $3,300 |
| Soundproofing / acoustic insulation (party walls) | $1,700 – $3,900 |
What pushes a Hollywood quote up is access: attic hatches in old bungalow courtyards are often small, the roof pitch is low, and sometimes we’re working around knob-and-tube wiring that needs clearance. If the job requires removing old, settled material or adding vent baffles before we start blowing, that cost goes on top. Whatever the number is, we give you the full price before any work begins, and we don’t change it after the truck pulls up.
Neighborhoods We Serve in Hollywood
We work across the 90028 ZIP and the surrounding Hollywood area, from the bungalow courts south of Franklin to the condo and apartment buildings around the Hollywood core and west toward Laurel Canyon. Most jobs are within 35 minutes of our East LA yard, and we schedule around your availability, not the other way around.
- Hollywood Dell
- Whitley Heights
- Beachwood Canyon
- Little Armenia
- Thai Town
Service Area – Cities Near Hollywood
If you’re outside Hollywood proper, we also cover the surrounding neighborhoods and cities on a regular route. Universal City, CA straddles the hills to the north, and we handle its older hillside homes and newer condos. West Hollywood, CA has its own mix of courtyard apartments and high-rises needing acoustic and thermal work. Koreatown, CA brings older prewar multifamily buildings that almost always have no cavity insulation. And Echo Park, CA is dense with 1920s bungalows where attic work is the default starting point.
Serving Hollywood, CA - Our Local Coverage Area
We serve Hollywood and nearby communities. Use the map below to see the area we cover. If you’re nearby, we can almost certainly help.
FAQs About Insulation Company in Hollywood
Most Hollywood appointments are scheduled within two to five business days, and we try to group jobs in the same area so we’re not running the 101 back and forth. Emergency calls for insulation failures, like a ceiling soaked from a roof leak, get triaged as fast as the road allows. Call (866) 566-0304 and we’ll tell you exactly when we can be there.
Insulation alone rarely triggers a permit in Hollywood, but if you’re adding it as part of a room addition or roof re-do, the project likely falls under Title 24 cool-roof and energy compliance rules. We can tell you whether your project needs sign-off before we touch anything, and we’ll work with the plans your architect or contractor has in place.
Yes. The 1920s and 1930s courtyard apartment buildings in Hollywood were built with minimal wall cavity fill, so neighbor noise travels easily. We dense-pack blown insulation into party walls or use Rockwool batts where access allows, which knocks down most mid-frequency sound. It’s one of the most common jobs we do in Hollywood’s older multifamily stock.
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.
- 3We come out and measureLicensed & insured, at a time that suits you. The visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Hollywood Customers Say
"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."
- Jason Walsh"Handled the utility rebate paperwork, which knocked a real amount off the final cost."
- Rosa Martinez"Plastic laid from the front door to the attic hatch and they vacuumed the hallway afterward."
- Diego Castillo