Fast, Reliable Attic Insulation Across West Hollywood
Attic insulation in West Hollywood typically costs $2,200 – $6,800 for a full retrofit, and most projects are completed in one to two days. We work across 90069 and the surrounding blocks every week, from the bungalow courts off Fountain to the mid-century courtyard buildings near Santa Monica Boulevard. If your second-floor unit bakes in the afternoon or your energy bill climbs every summer, call (866) 605-6949 for a free attic assessment. We know which buildings in this city were built without proper ceiling insulation, because we’ve worked inside hundreds of them.
Why Hollywood Insulation Co Is West Hollywood’s Preferred Attic Insulation Company
We’re not a general contractor who occasionally touches insulation. Every technician at Hollywood Insulation Co spends every workday on one trade: attic performance, air sealing, and thermal efficiency. That focus matters in West Hollywood, where the housing stock runs heavy on 1920s Spanish bungalows, 1950s dingbat apartments, and mid-century courtyard complexes. We know how these structures actually behave in summer heat. We know where the air leaks. We know what a crumbled tar-paper vapor barrier means for your attic.
Noel Camacho, who leads our team, built Hollywood Insulation Co around one principle: recommend the method that matches the building, not the material that’s already loaded on the truck. That’s why we carry eight manufacturer brands across fiberglass, mineral wool, spray foam, and cellulose. For a 1960s courtyard building in West Hollywood needing acoustic separation between units, Rockwool mineral wool often outperforms fiberglass batts. For a dingbat with open carport ceilings, Icynene open-cell foam plus an exterior radiant barrier delivers results batt insulation can’t touch.
Our crews reach West Hollywood within 60 – 90 minutes for most scheduled assessments. We’ve handled attic retrofits on Vista Del Mar, Norton, Havenhurst, and dozens of other streets in 90069. The city’s rent stabilization rules mean many owners can’t displace tenants during an insulation job. Our methods account for that. We blow cellulose from the exterior, work from the carport side, and stage work so occupied units stay occupied.
Attic Cleaning Services in West Hollywood
Attic cleaning services in West Hollywood run $450 – $1,400 depending on attic size and contamination level. In this city, we’re usually dealing with decades of dust, old rodent activity, and degraded insulation fibers from original 1950s and 1960s installations. A clean attic is the prerequisite for any insulation retrofit. Blowing new material over old debris doesn’t fix air leaks, and it doesn’t address the conditions that caused the problem.
We vacuum out the old material, remove debris, and inspect the decking and joists underneath. West Hollywood’s older multi-family stock often hides wiring issues and small leaks under layers of settled insulation. We surface those problems before you spend money on new material.
Post-Cleaning Air Sealing
After the attic is clean, we seal the top plates, penetrations, and any gaps around vents or recessed lighting. In West Hollywood buildings from the 1920s through the 1960s, these gaps are often wide enough to feel a draft through. Air sealing before insulation is what turns a mediocre retrofit into one that actually lowers cooling costs.

Debris and Contaminant Removal
Old tar paper crumbles, old batts compress, and years of dust settle into everything. We remove all of it before installing new insulation. This is especially important in West Hollywood’s rent-controlled buildings, where tenants may have respiratory sensitivities and owners can’t afford cross-unit contamination complaints.

What happens when you call
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Attic Mold Removal in West Hollywood
Attic mold removal in West Hollywood typically costs $1,100 – $3,200, with full remediation and sanitization at the higher end. The coastal-side LA basin climate creates exactly the kind of temperature swings and humidity that feed attic mold growth. When older fiberglass batts in West Hollywood attics get damp, they stay damp. Add minimal ventilation and a tar-paper vapor barrier, and you have a textbook mold environment.
We treat mold at the source. That means removing the contaminated insulation, treating the affected framing and decking with professional antimicrobial agents, and then correcting the ventilation or moisture issue that let the mold take hold. We don’t just spray and walk away. We find out why the moisture exists.
Source Moisture Correction
Bathroom fans venting into the attic are a culprit we see constantly in older West Hollywood buildings. Roof leaks at old vents are another. We correct the ventilation issue before installing new insulation, because otherwise the mold returns and the new material is wasted.
Post-Remediation Insulation Install
Once the attic is dry and treated, we re-insulate using material suited to the specific building condition. For many West Hollywood multi-family attics with limited clearance, blown-in GreenFiber cellulose or Owens Corning fiberglass works well. For higher-R-value needs in tight spaces, closed-cell spray foam may be the better spec.
Trusted Brands We Service in West Hollywood
We install and service attic insulation using materials from eight manufacturers: Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, Demilec, and GreenFiber. That breadth matters in West Hollywood because building types here vary wildly from block to block. A dingbat over a carport needs a different solution than a 1920s Spanish duplex with attic space. We stock common parts and materials for 90069 jobs in our local inventory, which means we don’t delay your retrofit waiting on a shipment. Demilec closed-cell foam works for moisture-prone attics. GreenFiber cellulose suits tight-access retrofits. The right material is the one matched to your building.
Common Attic Insulation Problems We See in West Hollywood Homes
- The dingbat carport ceiling. West Hollywood’s iconic dingbat apartments sit over open carports, which creates an uninsulated ceiling plane directly below the second-floor unit. Heat from the carport radiates upward through the floor and into the living space, making those units run significantly hotter than any other room in the building. Soffit insulation and air sealing from the carport side is the signature fix that local technicians recognize instantly, but contractors from outside the area often miss it entirely.
- Settled and compressed fiberglass batts. Original insulation from the 1950s and 1960s in West Hollywood multi-family stock has compressed over decades. R-value drops when fiberglass loses its loft, and combined with coastal humidity, the batts often harbor dust and mold. Replacing compacted material restores the ceiling’s thermal performance and removes a source of indoor air quality problems.
- Unsealed wiring and plumbing penetrations. In dingbat carport ceilings, the penetrations for wiring and plumbing were rarely sealed at construction. During Santa Ana wind events, hot dry air gets pushed through these gaps into the attic and then into units. We see this pattern repeatedly in the 90069 building stock, and it’s a fire-hazard concern that goes beyond comfort.
- Knob-and-tube era wiring complications. Many West Hollywood buildings from the 1920s and 1930s still have knob-and-tube wiring in the attic. Blowing insulation over active knob-and-tube is a known fire hazard. Our team inspects for this before any cellulose or fiberglass installation, and we coordinate with electricians when old wiring needs to be addressed first.
Pricing for Attic Insulation in West Hollywood, CA
A standard blown-in fiberglass attic insulation job in West Hollywood runs $2,200 – $4,800 for a typical multi-family unit or small building. Spray foam retrofits with Demilec or Icynene systems run $4,000 – $6,800 depending on square footage and access. Batt insulation replacement falls toward the lower end at $1,800 – $3,600. What moves the price in West Hollywood specifically: building age, access through tight 1920s attic hatches, rent-control constraints that require exterior-side work, and the need for carport soffit air sealing. We give you a written line-item estimate before any work starts. Call (866) 605-6949 to schedule a free attic evaluation in 90069.
We Also Serve Cities Near West Hollywood
Our Attic Insulation team covers the entire central LA basin, including Beverly Hills, Century City, Hollywood, and Universal City. If you’re just over the West Hollywood border or managing a property in an adjacent area, we bring the same local knowledge and method-matched approach. Attic Insulation in West Hollywood remains our core service area, but we’re equipped for neighboring cities too.
Serving West Hollywood, CA — Our Local Coverage Area
We’re based in the West 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 Attic Insulation in West Hollywood
West Hollywood’s housing stock is dominated by 1920s – 1960s rent-controlled multi-family buildings like bungalow courts, dingbat apartments, and courtyard complexes. Neighboring Beverly Hills and Century City skew more toward single-family homes and newer construction. The retrofit challenges in West Hollywood are unique: you can’t displace tenants during work, you often have to work from the exterior or carport side, and the original insulation, if any existed, was minimal by today’s standards. Insulating here requires a method that accounts for rent stabilization rules and occupied units. Call (866) 605-6949 and we’ll assess your building’s specific constraints.
Salt air from the Pacific accelerates corrosion on metal attic components: roof vents, fasteners, and any brackets near the roofline rust noticeably faster in West Hollywood than in inland cities. Corroded vents stick shut or seize open, which compromises attic ventilation and creates the moisture buildup that degrades insulation. We check attic ventilation hardware during every insulation evaluation, because in this microclimate, the metal components fail first. We recommend replacing corroded vents before installing new insulation, and we offer a free inspection to spot these issues early.
Yes, and this is one of the most common requests we get in West Hollywood. The open carport under a dingbat apartment acts like a radiator, pushing heat upward into the unit above all afternoon. We install exterior-grade soffit insulation with a radiant barrier on the carport ceiling, then air-seal the top plates and penetrations from the carport side. We recently insulated a 1962 dingbat on Vista Del Mar Avenue in West Hollywood’s 90069, where the second-floor unit was baking from heat gain through the uninsulated ceiling above the carport. Our crew installed Owens Corning blown-in fiberglass with a radiant barrier on the carport soffit, then air-sealed the top plates and penetrations; the upstairs tenant reported a 10°F drop in afternoon temperatures and the owner avoided displacing anyone during the retrofit. Call (866) 605-6949 to see if your building is a candidate.
Get it removed properly. Attic mold removal in West Hollywood involves removing the contaminated insulation, treating the framing with antimicrobial agents, and correcting the moisture source: usually a bathroom exhaust fan, a leaking roof vent, or failed tar-paper vapor barrier. We handle the full sequence, not just the spray. Leaving moldy batts in place while adding new insulation on top traps the problem and makes it worse. Call (866) 605-6949 for a mold assessment and removal quote.
Yes. West Hollywood has seen a steady wave of ADU builds and garage conversions, and those projects need ceiling and wall insulation that meets current Title 24 energy standards. We work with owners and remodelers to spec the right material for the structure: Demilec closed-cell foam for tight clearance and moisture resistance, or GreenFiber blown-in cellulose for eco-conscious clients. We coordinate with your contractor’s framing and electrical schedule so insulation goes in at the right moment, not as an afterthought.
Contact Our West Hollywood Attic Insulation Team
If your West Hollywood attic needs insulation, air sealing, mold removal, or a full carport soffit retrofit, we’re ready to take a look. We know the buildings, the rent-control constraints, and the climate patterns that make this city’s insulation needs different from anywhere else in LA. Call (866) 605-6949 for a free, no-pressure estimate. We’ll tell you honestly what your attic needs and what it doesn’t.
Written by Noel Camacho, Owner at Hollywood Insulation Co, serving West Hollywood and the greater Los Angeles area.