Spray Foam Insulation in Hollywood — Same-Day Service, Done Right the First Time

Fast, Reliable Spray Foam Insulation Across Hollywood

Spray foam insulation in Hollywood typically costs $2.50 – $5.50 per board foot installed, with a 1,000-square-foot open-cell attic job running $2,800 – $4,600 and closed-cell rim joist packages starting around $900 – $1,800. Most Hollywood homes built before 1960 have zero attic insulation, which is why our crews are in the neighborhood weekly. We reach most 90028 addresses same-week, and we know the parking, alley access, and building-age realities that make Hollywood jobs different from anywhere else. Call (833) 390-3099 for a free site walk and a straight answer about what your building actually needs.

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Why Fountain Valley Insulation Is Hollywood’s Preferred Spray Foam Insulation Company

Hollywood property owners call us because we carry the products that solve the specific problems of 1920s – 1960s construction. Spray Foam Insulation is not a one-product conversation with us. We work across eight manufacturers, and for Hollywood’s dense, hilly, flat-roofed stock, we lean on closed-cell Icynene and open-cell Demilec where they actually make sense. Nate Calloway runs our crews, and his approach to Hollywood work is blunt: match the foam to the cavity, not the other way around.

We’ve foamed wall cavities in Spanish Colonial bungalows off Fountain Avenue that were packed with 1920s newspaper. We’ve done unvented flat-roof decks over courtyard-top units near Sunset and Vine where the plaster ceilings were 120 degrees by 3 p.m. in August. Hollywood customers don’t need a contractor learning on the job. They need someone who knows that balloon-frame walls breathe differently than modern studwork and that open-cell in a sealed tar roof is a moisture trap. We won’t sell you a spec that fails here.

Response time to Hollywood runs 24 – 48 hours for estimates, and most smaller jobs are scheduled within a week. We keep material stocked for the building types we see constantly here, which means fewer delays when the job is a pier-and-beam Hillside crawl space or a tight 90028 wall bay that only has alley access.

Rim Joist Spray Foam in Hollywood

Rim joist spray foam is one of the highest-leverage upgrades we do in Hollywood, where pier-and-beam foundations and raised crawl spaces are common in the Hillside neighborhoods and older bungalow stock. The rim joist, a.k.a. the band joist, is the wood framing that sits on top of the foundation wall and runs around the perimeter of your floor system. In most pre-war Hollywood homes, it’s uninsulated and full of gaps. We inject closed-cell foam at each joist bay to air-seal and insulate the transition between your crawl space and the rooms above.

Closed-Cell for Air Sealing and Moisture Control

Closed-cell Icynene is the right product for rim joists here because it stops the stack effect, the constant pull of hot afternoon air into the crawl space and cooled air out of it. It also handles occasional winter rain and marine-layer dampness without holding moisture.

When the Job Needs Crawl Space Access First

On pier-and-beam Hollywood homes, we check the crawl space before quoting. Tight clearances are normal, and some older foundations have settled enough that the rim joist varies in width bay to bay. We price that work honestly. Expect $1,200 – $2,400 for a standard perimeter rim joist job in a 90028 bungalow.

Crawl Space Spray Foam Insulation in Hollywood

Crawl space spray foam insulation in Hollywood addresses what we’d call the forgotten floor: the uninsulated cavity under your first floor that pulls hot outside air and dust into the house while letting cooled air leak out. Hollywood’s Hillside homes sit on pier-and-beam foundations with open crawl spaces, and the temperature swing between the shaded crawl space and the sun-baked stucco walls above creates condensation against the floor joists. We spray closed-cell foam directly onto the subfloor underside or the crawl space walls, depending on how the building is vented.

Floor Underside Foam for Hot-Season Comfort

When the top floor of an apartment building is unbearable and the crawl space isn’t the main source of heat gain, floor-underside foam still helps. It cuts the radiant transfer from a hot crawl space and keeps dust and pollutants from migrating up through old plank subfloors.

Wall Application for Vented Crawl Spaces

For vented crawl spaces common in Hillside bungalows, we often recommend foaming the perimeter walls instead of the floor, which seals the rim joist, the mudsill, and the wall cavities in one pass. A typical Hollywood crawl space job runs $2,000 – $4,500, depending on square footage and access.

Trusted Brands We Service in Hollywood

We’re not tied to one manufacturer, which matters in Hollywood because no single foam product handles a 1928 bungalow’s balloon-frame walls and a 1960s stucco apartment’s flat roof equally well. We regularly spec Icynene closed-cell for rim joists and unvented roof decks, Demilec open-cell for cost-sensitive attic fills where the assembly can breathe, and Rockwool mineral wool where fire rating or moisture resistance matters more than R-value per inch. Our crews bring the right product to the job, not whatever’s already on the truck. Call us and ask why we carry all three. Most contractors carry one.

Common Spray Foam Insulation Problems We See in Hollywood Homes

• Newspaper-and-rubble cavities: In the 90028 apartment corridors, crews regularly open walls to find nothing but 1920s newspaper and old plaster debris. Foam injected over that without clearing it won’t adhere, which is why we densify or remove the debris before spraying.
• Unvented asphalt-tar flat roofs: Hollywood’s courtyard apartments and many bungalows have original tar-and-gravel roofs over no ventilation. Open-cell foam in that assembly traps winter condensation and rots the deck, so this is a closed-cell job when done from below.
• Expansion blowout on lath-and-plaster: High-expansion foam in tight 90028 wall bays can bow old plaster and crack historic ceilings. We use low-expansion, slow-rise products around fragile lath-and-plaster.
• Alley-loaded access: Many Hollywood buildings have no street-front parking and tight alley access. We plan equipment staging around that, and we don’t need a parking spot to quote or to run most spray rigs.

Pricing for Spray Foam Insulation in Hollywood, CA

Open-cell attic spray foam in Hollywood runs $2.50 – $3.50 per board foot, and a 1,000-square-foot attic fill is $2,800 – $3,900 on average. Closed-cell is $3.50 – $5.50 per board foot, so rim joist work is $1,200 – $2,400 and a smaller flat-roof deck is $3,000 – $6,000 depending on access and thickness. What moves the number most in Hollywood is whether we’re working in a tight courtyard alley or a Hillside crawl space, and whether the assembly needs closed-cell for moisture control. Crawl space spray foam typically runs $2,000 – $4,500. We give free, line-itemed estimates before any work starts, so there’s no guessing. Call (833) 390-3099 and Nate will walk the job with you.

We Also Serve Cities Near Hollywood

Our crews work across Hollywood, plus Universal City, West Hollywood, Koreatown, and Echo Park. If you own a building on the border of 90028, ask us which crew is already in your area this week.

FAQs About Spray Foam Insulation in Hollywood