Trusted Spray Foam Insulation for Hollywood Homeowners
Spray foam insulation in Hollywood is the most effective way to seal a home against the heat that builds up in attics and exterior walls from April through October, and it typically pays for itself within 3 to 5 years through lower cooling costs. If you’re wondering how much Spray Foam Insulation costs, we can help. Hollywood Insulation Co installs both open-cell and closed-cell spray foam systems from Icynene and Demilec, so the recommendation you get is based on what your home actually needs, not what happens to be on the truck that day. Noel Camacho leads our Hollywood-based crew, and we respond to most calls in the area within 24 to 48 hours. If you’re tired of rooms that never hold temperature or energy bills that spike every summer, call us at (866) 605-6949 for a free estimate.
Key Takeaways
- Spray foam insulation in Hollywood typically ranges from $1.50 to $4.50 per board foot installed, depending on open-cell vs. closed-cell and the area being treated.
- We install both Icynene and Demilec spray foam systems, covering open-cell and closed-cell applications.
- Most Hollywood spray foam projects are completed in one day, with larger whole-home jobs taking two to three days.
- As a dedicated insulation specialist, we match the method to the home, never the other way around.
Closed Cell Spray Foam Insulation
Closed Cell Spray Foam Insulation is a dense, rigid foam that delivers the highest R-value per inch of any insulation product we install, typically around R-6.5 to R-7 per inch, and it acts as both an air barrier and a moisture barrier. We recommend closed-cell foam for Hollywood homes with limited cavity space, for areas exposed to moisture like rim joists and crawl spaces, and for any homeowner who wants maximum structural rigidity along with thermal performance. Hollywood Insulation Co installs Demilec closed-cell systems, and pricing for closed-cell spray foam in Hollywood generally runs $2.50 to $4.50 per board foot depending on depth and access. The material cures quickly, which means most closed-cell applications are walkable and paintable within hours, not days.
Where Closed-Cell Earns Its Cost
In Hollywood, where many homes sit on hillsides or have converted garages and bonus rooms, closed-cell foam is often the right call because it doubles as a vapor barrier. That matters when you’re insulating against concrete or masonry, or when cavity depth is limited by older framing. We’ve seen homes in the Hollywood Hills where closed-cell spray foam cut cooling costs by 30 to 40 percent in the first summer alone.
Demilec Closed-Cell Systems
Demilec’s closed-cell lineup is what we reach for when a Hollywood home needs high R-value, air sealing, and moisture resistance in one application. The foam expands to fill every gap and then hardens, which strengthens the wall assembly. It’s the option we recommend for rim joists, crawl spaces, and any below-grade application where moisture intrusion is a real concern.
Open Cell Spray Foam
Open Cell Spray Foam is a lighter, softer foam that expands aggressively to fill cavities and seal air leaks, delivering about R-3.5 to R-4 per inch while allowing the structure to breathe. In Hollywood, open-cell foam is a strong fit for attic roof decks and interior walls where sound dampening matters and moisture permeability is acceptable. Hollywood Insulation Co installs both Icynene open-cell systems and Demilec open-cell products, and pricing for open-cell spray foam in Hollywood typically falls between $1.50 and $2.75 per board foot. It’s an excellent air-sealing material that can dramatically reduce the stack effect in older Hollywood bungalows and two-story homes.
Attic Roof Deck Applications
When we spray open-cell foam directly onto the underside of a roof deck, the attic becomes conditioned space. That means ductwork sitting in the attic isn’t fighting 130-degree air anymore. For Hollywood homes with HVAC equipment in the attic, this change alone can take a noticeable bite out of summer electric bills.
Icynene Open-Cell Foam
Icynene open-cell foam is a water-blown product that doesn’t off-gas and won’t support mold growth. We use it frequently in wall cavities and between floor joists in Hollywood homes where sound transfer between units or rooms is a complaint. The foam’s expansion characteristics let it fill tight corners and odd framing bays that batts could never seal properly.
Spray Foam Insulation Contractors
Spray Foam Insulation Contractors are specialists who install two-component polyurethane foam that expands on application, and hiring the right contractor is the single biggest factor in whether a spray foam project performs as promised. In Hollywood, the difference between a good spray foam job and a bad one usually comes down to temperature control during application, proper mixing ratios, and an honest assessment of whether spray foam is even the right material for the job. Hollywood Insulation Co is a dedicated insulation contractor, meaning spray foam, blown-in, and batt installation is all we do. Spray foam contractor labor and material in Hollywood typically runs $1.50 to $4.50 per board foot, and our estimates are always itemized by material and area.
Why Specialists Beat Generalists
A general contractor who occasionally sprays foam doesn’t have the same depth of experience with Icynene or Demilec system chemistry. Off-ratio foam that never fully cures, shrinkage that pulls away from studs, or foam that off-gasses for weeks are all failures we’ve been called to fix in Hollywood homes. A spray foam specialist diagnoses the thermal envelope first and chooses the material second.
What to Expect From a Professional Crew
Our Hollywood crew shows up with calibrated proportioning equipment, not rented rigs. Every technician is trained on both open-cell and closed-cell application, which means the crew on your job actually understands what happens if the substrate is too cold or the humidity too high. That’s the kind of judgment you pay for when you hire spray foam insulation contractors, and it’s the reason our foam jobs don’t get callbacks.
Spray Foam Attic Insulation
Spray Foam Attic Insulation is the application of expanding foam to the underside of the roof deck or to the attic floor, and it’s the most impactful single insulation upgrade most Hollywood homeowners can make. Attics in this area routinely hit 130 to 140 degrees in July and August, and that heat radiates down into living spaces for hours after sunset. Hollywood Insulation Co sprays attics in Hollywood with either open-cell Icynene or closed-cell Demilec foam, depending on whether the attic is vented or unvented. Spray foam attic insulation in Hollywood typically costs $4,000 to $12,000 for a whole-attic application, though partial treatments like knee walls or a specific gable end run less.
Vented vs. Unvented Attics
For a vented attic, we usually apply closed-cell foam to the attic floor, sealing the ceiling plane and keeping ductwork and stored items in conditioned comfort. For an unvented conversion, open-cell foam on the roof deck transforms the attic into usable, conditioned square footage. The right choice depends on your roofline, your HVAC placement, and whether you’re planning to finish the attic later.
Dealing With Hollywood’s Heat Load
Conventional fiberglass in an attic floor loses effectiveness as temperatures climb, which is exactly when you need it most. Spray foam doesn’t have that problem because it seals air movement instead of just slowing conductive heat. Homeowners in the foothills above Hollywood Boulevard report the sharpest improvements because their attics bake harder and longer than homes down in the flats.
Spray Foam Wall Insulation
Spray Foam Wall Insulation fills entire wall cavities with expanding foam that seals every seam, crack, and penetration, eliminating the air leakage that batt insulation can leave behind. In Hollywood, where many homes were built between 1920 and 1960, original wall insulation is often missing entirely or has settled into uselessness. Hollywood Insulation Co installs spray foam in existing walls in Hollywood using injection techniques for closed-cell and cavity spray for open-cell, depending on what the wall assembly can handle. Spray foam wall insulation in Hollywood generally runs $2.00 to $4.00 per square foot of wall area treated.
Retrofit vs. New Construction Walls
During a gut remodel or new build, we spray open-cell foam directly into open stud bays before drywall goes up. For existing walls with intact drywall, closed-cell injection through small drilled holes gets foam into the cavity without tearing the room apart. Both approaches work; the right one depends on where your Hollywood project is in its construction timeline.
Sound Control in Dense Hollywood Neighborhoods
Open-cell spray foam cuts noise transfer between rooms and from street level, which matters when you live on a busy corridor like Sunset Boulevard or Fountain Avenue. The foam fills the cavity completely and doesn’t sag over time the way some batts do. For Hollywood homeowners dealing with traffic noise or loud neighbors, open-cell wall foam is a quiet, effective upgrade.
Rim Joist Spray Foam
Rim Joist Spray Foam seals the perimeter band where your first-floor framing meets the foundation, a spot that leaks air in nearly every Hollywood home built before 1990. The rim joist area is a notorious air infiltration point, and because it sits near ground level, it’s also where moisture and pests find their way into your crawl space or basement. Hollywood Insulation Co treats rim joists in Hollywood with closed-cell Demilec foam, which seals air, stops moisture migration, and adds structural rigidity. Rim joist spray foam in Hollywood typically costs $1,200 to $3,000 for a full perimeter treatment on an average home.
What Makes the Rim Joist a Problem
Builders in the 1950s and 1960s often stuffed fiberglass scraps into rim joist bays, which does almost nothing against air movement. Closed-cell foam expands into every gap between the sill plate, the band board, and the subfloor, cutting off the stack effect that pulls hot air in through the bottom of a house and pushes it out the top. Hollywood hillside homes with pier foundations get hit hardest here.
Moisture and Pest Blocking
Closed-cell foam at the rim joist doesn’t just stop air; it forms a barrier against moisture wicking up from damp soil in crawl spaces. That same seal also closes the gaps ants and rodents use to get into the walls. It’s one of the smallest jobs we do by square footage, but it’s consistently one of the highest-impact upgrades for comfort and pest reduction in Hollywood homes.
Crawl Space Spray Foam Insulation
Universal City Spray Foam Insulation also covers crawl spaces, applying foam to the underside of the first floor, the crawl space walls, or both, depending on whether the crawl space is vented or sealed. Homes in the Hollywood Hills and parts of Beachwood Canyon often sit above crawl spaces that leak air into the living space and pull moisture up from the ground. Hollywood Insulation Co applies closed-cell Demilec foam in Hollywood crawl spaces, because open-cell foam in a damp crawl environment can absorb moisture and hold it against framing. Crawl space spray foam insulation in Hollywood typically runs $2,500 to $6,000 depending on square footage and access.
Floor vs. Wall Application
For vented crawl spaces, we spray the floor system from below, sealing the band joists and coating the underside of the subfloor. For sealed crawl spaces, we move the treatment to the perimeter walls and the rim joist, which conditions the entire crawl area. The right approach depends on the existing venting, the moisture profile, and whether ductwork runs through the space.
Why Hollywood Hills Homes Benefit Most
Sloped lots mean crawl spaces with uneven clearances and odd geometry. Foam reaches every corner where batts would leave gaps. We’ve worked in Hollywood Hills homes where sealing the crawl space eliminated musty smells in the living room above within a week, because the odor source was ground moisture wicking into the floor assembly.
Garage Spray Foam Insulation
Garage Spray Foam Insulation treats the garage ceiling, the shared wall between the garage and the house, or an exterior garage wall to stop heat transfer and air leakage. In Hollywood, many garages are attached, which means an uninsulated garage can drag down the efficiency of the whole house, especially if the garage sits under living space or shares a wall with the kitchen. Hollywood Insulation Co installs both open-cell Icynene and closed-cell Demilec foam in Hollywood garages, and garage spray foam insulation typically costs $1,500 to $5,000 depending on which surfaces get treated and the size of the garage.
The Shared Wall and Ceiling Problem
The wall between an attached garage and the house is often one of the leakiest, least-insulated surfaces in the building. We spray that shared wall and the garage ceiling where it sits beneath a bedroom or living room, and the temperature difference is immediately noticeable. Converted Hollywood garages used as workshops, gyms, or studios need the same treatment to hold temperature.
Garage Conversions and ADUs
With Hollywood ADU rules changing and more homeowners converting garages into rentable units, spray foam has become the default insulation choice. It provides the air seal and R-value a habitable unit needs without eating into already-limited headroom the way thick batt systems can. We’ve sprayed more garage conversions in Hollywood in the last few years than in the previous decade combined.
Brands We Service
Hollywood Insulation Co works with eight manufacturer brands across every major insulation category, which means the recommendation you get is built around your home’s actual needs. For spray foam specifically, we install both Icynene and Demilec systems, covering open-cell and closed-cell applications without having to steer you toward one brand because it’s the only one we carry. That’s the difference between a contractor who sells what they stock and a specialist who picks the right product for the job.
Beyond spray foam, our Hollywood team also installs Rockwool mineral wool for fire resistance and sound control, and CertainTeed fiberglass for batt applications where traditional insulation is the right call. We also work with Owens Corning, Johns Manville, Knauf, and GreenFiber when a project calls for those specific products. Whether you have a specific brand in mind or want an honest recommendation, call us at (866) 605-6949 and we’ll walk you through what makes sense for your Hollywood home.
Signs You Need a Pro Right Now
- Rooms that never hold temperature. If your thermostat says one thing and your living room feels like another, your home’s thermal boundary is compromised. Spray foam seals the air leaks that cause this, and it’s a problem that won’t fix itself as Hollywood summers get hotter.
- Energy bills climbing year over year. Southern California electricity rates keep rising, and an unsealed envelope means you’re paying to cool air that leaks straight out. A spray foam upgrade in the right place can cut heating and cooling costs by 20 percent or more.
- Hot ceiling or warm walls at sunset. If your ceiling feels warm to the touch in the evening, your attic insulation isn’t holding. That trapped heat radiating into your home is exactly what spray foam attic insulation stops.
- Dust, drafts, or musty smells near baseboards. Air leaking in through rim joists and crawl spaces carries dust and moisture into your home. Sealing those paths with closed-cell foam stops the draft and the debris at the source.
- Noise from outside or between rooms. Open-cell spray foam in walls damps sound transfer significantly. If you hear street noise through closed windows or every footstep from the floor above, your wall cavities and floor system likely lack the air seal that foam provides.
Our Process, Step by Step
- 1
Site assessment and thermal diagnosis. Noel Camacho or a senior tech walks your Hollywood home room by room, checking attic depth, rim joist access, wall cavities, and any crawl space. We use thermal imaging to find exactly where heat is moving and where air is leaking, so the treatment plan targets the real problems instead of guessing.
- 2
Material and method recommendation. Based on the diagnosis, we recommend open-cell or closed-cell foam from Icynene or Demilec, and we explain why that product fits your home’s construction type and your goals. If spray foam isn’t the right answer for a particular surface, we’ll tell you that too; it’s why we carry Rockwool, CertainTeed, and GreenFiber as well.
- 3
Prep and protection. We mask and cover surfaces that aren’t being sprayed, ventilate the work area, and confirm substrate temperatures are within manufacturer spec. The most common cause of failed foam in Hollywood is applying it under the wrong conditions, and we don’t cut that corner.
- 4
Application by trained spray foam technicians. Our crew applies the foam at the specified depth and density, wearing full PPE and monitoring equipment output throughout. Open-cell and closed-cell applications require different rig settings and technique, and our installers are trained on both Icynene and Demilec systems.
- 5
Post-install verification and cleanup. We check foam thickness with depth probes, confirm full cavity fill, and then remove all masking and debris. You get a walkthrough of the work before we leave, along with any notes on cure times and when you can resume normal use of the space.
How Much Does Spray Foam Insulation Cost in Hollywood?
Our Spray Foam Insulation in Hollywood runs $1.50 to $4.50 per board foot installed, with open-cell foam at the lower end ($1.50 to $2.75) and closed-cell foam at the higher end ($2.50 to $4.50). For a whole-attic application on a typical 1,200 square foot Hollywood home, expect $4,000 to $12,000. A rim joist treatment runs $1,200 to $3,000, a crawl space job runs $2,500 to $6,000, and a garage or single wall cavity project usually lands between $1,500 and $5,000. These ranges cover the material, equipment, labor, and prep work.
What moves the price: the depth of foam required to hit code or comfort targets, how accessible the work surfaces are, whether the space is currently insulated and needs removal, and the square footage of the treatment area. The best way to avoid overpaying in Hollywood is to get an itemized estimate that separates material costs from labor and shows exactly which surfaces get treated to what depth. Our free estimates include all of that, plus thermal imaging findings, and you can call (866) 605-6949 to schedule one without any obligation.
Our Service Area Near Hollywood
Hollywood Insulation Co serves the entire Hollywood area and surrounding neighborhoods. We work in West Hollywood, Koreatown, Silver Lake, Echo Park, Los Feliz, Studio City, Universal City, Burbank, Glendale, North Hollywood, and the Hollywood Hills. Most calls in Hollywood get a site visit within 24 to 48 hours, and we can often schedule the installation itself within the same week. If you’re in any of these neighborhoods, you’re in our normal service area. See our home page for the full list of services.
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.
Frequently Asked Questions About Spray Foam Insulation in Hollywood
Spray foam insulation is a two-component polyurethane product that expands on application to fill cavities and seal air leaks. It’s available as open-cell foam, which is softer and more sound-dampening, and closed-cell foam, which is rigid and doubles as a moisture barrier. Hollywood Insulation Co installs both types from Icynene and Demilec systems, and we match the type to the specific application.
Most single-area spray foam projects in Hollywood, like a rim joist or garage treatment, are finished in one day. A whole-attic or multiple-wall application usually takes two to three days including prep and cleanup. Closed-cell foam cures quickly and can often be walked on within hours; open-cell foam needs a little longer to fully off-gas and lose its initial odor. Call (866) 605-6949 and we’ll give you a realistic timeline for your specific project.
Spray foam insulation in Hollywood costs $1.50 to $4.50 per board foot installed, with open-cell at $1.50 to $2.75 and closed-cell at $2.50 to $4.50. Whole-attic jobs typically run $4,000 to $12,000. Your exact price depends on the surface area, foam depth, and access conditions, and our free estimates itemize all of it.
Yes, we install both Icynene and Demilec spray foam systems in Hollywood. Icynene open-cell foam is our go-to for interior walls and roof decks where breathability and sound control matter. Demilec closed-cell foam is what we use for rim joists, crawl spaces, and any application needing a moisture barrier. We carry both because no single foam system covers every scenario.
In most cases we can get a technician to your Hollywood home within 24 to 48 hours, and we do prioritize urgent situations like exposed framing after a leak or storm damage. If you call (866) 605-6949 in the morning, there’s a good chance we can have someone on site that afternoon or the next morning at the latest. Emergency availability depends on our current schedule, but we’ll always tell you honestly when we can get there.
We stand behind our installation workmanship, and the foam systems we install from Icynene and Demilec carry manufacturer warranties that remain in effect for the life of the product. If anything isn’t right after we leave, we come back and make it right. Call (866) 605-6949 and we’ll walk you through the warranty terms for the specific system we recommend for your Hollywood home.
Before our Hollywood crew arrives, clear access to the work area and move any stored items out of the attic, crawl space, or garage spaces being treated. We handle masking, ventilation, and surface prep once we’re on site. It’s also helpful if you can identify any access hatches or panels in advance, especially in older Hollywood homes where crawl space entrances sometimes hide behind landscaping or built-ins.
Schedule Your Spray Foam Insulation Service in Hollywood Today
If your Hollywood home is fighting summer heat, leaking air, or costing more to cool every year, spray foam insulation is the fix that pays back fastest. Hollywood Insulation Co offers free, itemized estimates, same-week scheduling in most cases, and a crew led by Noel Camacho that installs Icynene and Demilec foam the right way. Call (866) 605-6949 today and get a straight answer about what your home actually needs.
Written by Noel Camacho, Owner at Hollywood Insulation Co, serving Hollywood and the surrounding Los Angeles area.