Attic Insulation Costs in West Hollywood: What to Expect
Attic insulation in West Hollywood typically runs $1,800 – $4,200 for a full installation, with blown-in fiberglass or cellulose averaging $2 – $3.50 per square foot and spray foam ranging from $3.50 – $6 per square foot. Most jobs we complete in the 90069 ZIP are done within one to two days. Call (877) 265-5712 for a free estimate with exact numbers for your floor plan.

West Hollywood’s insulation work is not a one-size-fits-all situation. The city’s dense stock of 1920s – 1930s Spanish Colonial and Craftsman bungalows, plus a large inventory of 1950s – 60s low-rise apartment buildings, means every attic presents a different set of constraints. We match the material to your home, not the other way around.
Why North Tustin Insulation Is West Hollywood’s Preferred Attic Insulation Company
West Hollywood homeowners call us because we understand what lives above their ceilings. The Attic Insulation in West Hollywood work we do differs from neighboring Beverly Hills in one key way: our crews routinely navigate zero-lot-line properties, alley-load only access, and stucco exteriors that demand careful patching after the job. That’s not a paragraph in a marketing deck. That’s what we encounter on Norma Triangle side streets every week.
We carry eight nationally recognized insulation brands: Owens Corning, CertainTeed, Johns Manville, Knauf, Rockwool, GreenFiber, Icynene, and Demilec. That lineup means our recommendation is driven by your attic’s condition and the city’s rules, not by whatever material happens to be on the truck. Insulation is the only trade we practice. Every technician, every estimate, and every conversation is concentrated on one thing: thermal performance and moisture control.
Our team is led by Allen Decker. If you’re in West Hollywood and want a straight answer about your attic, call (877) 265-5712. Estimates are free, and we’ll tell you exactly what we’d do and why.
Attic Mold Removal in West Hollywood
Attic mold removal in West Hollywood is a service we perform regularly because of how many original clay tile roofs in this city were built without underlayment or proper ventilation. Moisture moves through those tiles, condenses on the underside of the roof deck, and feeds mold on the rafters and old insulation. Many 1920s Spanish Colonial bungalows in the Norma Triangle and West Hollywood Heights show visible mold only after the old insulation comes out. We recently worked on a 1928 Spanish Colonial in the Norma Triangle exactly like that. The original tile roof had no underlayment, the old paper-faced batts were compacted and damp, and mold had spread across the rafters. We completed the mold removal, then air-sealed the bare joists before installing Owens Corning blown-in fiberglass to Title 24 cool-roof standards. The homeowner passed the city’s historic-preservation review with our documentation and noticed the drop in summer heat gain immediately.
Mold Removal Process
We remove the contaminated insulation, treat the affected wood surfaces with a mold-killing agent, and air out the attic before anything new goes in. The goal is to eliminate the moisture source, not just bleach the symptoms.
What It Costs
Attic mold removal in West Hollywood runs $800 – $2,500 depending on square footage and how far the mold has traveled. The job typically takes one day for a standard bungalow attic.
Attic Insulation Removal in West Hollywood
Attic insulation removal in West Hollywood is often the first step before any upgrade, and it’s not optional for most homes in this city. Degraded, compacted cellulose sits in bare rafter bays and does nothing to stop heat gain. Original paper-faced batts from the 1920s and 30s crumble into dust when touched. The zero-lot-line properties along side streets in West Hollywood Heights leave no staging space, so crews must alley-load materials and use compact equipment, risking incomplete air-sealing around tight eaves if anyone rushes. We don’t rush.
When Removal Is Required
Rodent damage, old water stains, decades of dust buildup, or simply insulation that has settled to half its original thickness. If you can see the tops of your ceiling joists, your insulation has failed.

Removal Costs
Attic insulation removal in West Hollywood typically costs $1.50 – $2.75 per square foot, or about $700 – $1,400 for an average bungalow attic. That includes bagging, disposal, and a clean workspace before the new material goes in.
Trusted Brands We Service in West Hollywood
We install and service Attic Insulation systems for every major brand, and we stock parts locally for West Hollywood customers. That means Owens Corning and Johns Manville fiberglass, GreenFiber recycled cellulose, and Demilec spray foam are available on our trucks when we pull up. We also carry Rockwool mineral wool and Icynene open-cell foam for homes where moisture resistance or sustainability is the priority. Eight brands. One contractor. The right fit for your attic.
Common Attic Insulation Problems We See in West Hollywood Homes
- Compacted cellulose under original clay tile roofs. No underlayment means moisture has had decades to sink into the insulation. The material loses its loft and its R-value, and it usually hides mold underneath.
- Paper-faced batts from the 1920s – 1930s that have turned to dust. In Spanish Colonial bungalows around the Norma Triangle, the original batts crumble on contact. They’re no longer insulating anything, and the paper facing is a fire history you don’t want.
- No air-sealing at the ceiling plane. West Hollywood’s older wood-frame homes leak conditioned air through every light fixture, plumbing chase, and top plate. Adding insulation without air-sealing first is like patching a tire without finding the nail.
- Flat-roof apartment buildings with exposed ceiling joists. The 1950s – 60s garden-style buildings scattered across the city have minimal attic space and often no ventilation at all. Insulation in these units must be planned around limited access and Title 24 cool-roof requirements.
Pricing for Attic Insulation in West Hollywood, CA
Here’s what we charge in West Hollywood. Blown-in fiberglass or cellulose for a standard 1,000 – 1,200 square foot attic runs $2,000 – $3,200. Attic batt insulation for the same floor plan costs $1,200 – $2,000. Spray foam, either open-cell Icynene or closed-cell Demilec, ranges from $3,500 – $5,500 depending on the roof deck area and whether you’re insulating the attic floor or the roofline itself. Insulation top-ups for attics that just need a refresh run $800 – $1,500. The variables that move the number are access, existing insulation condition, and whether mold removal or air-sealing is required first. Call (877) 265-5712 and Allen Decker will give you a line-item quote for your specific address.
We Also Serve Cities Near West Hollywood
Our crews cover West Hollywood regularly, and we also take jobs in Beverly Hills, Century City, Hollywood, and Universal City. If you’re just outside the 90069 ZIP and need attic insulation work, call us. We’ll send the same team that handles West Hollywood’s tight-access historic homes.
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
Any exterior change visible from the street, including new vents or changes to the roofline, triggers a historic-preservation review in the Norma Triangle and other protected districts. Interior attic work, including insulation removal, air-sealing, and blown-in installation, typically does not require review. We document everything and provide the paperwork you need if an inspector asks. Call (877) 265-5712 and we’ll tell you upfront whether your project needs any city sign-off.
Yes. We use compact equipment and alley-load materials so we never need to stage on a neighbor’s property or lean anything against your tile roof. The original clay tiles stay untouched. We’ve done this on bungalows throughout West Hollywood Heights where the roof is a protected feature.
We carry Owens Corning and CertainTeed fiberglass, Johns Manville batts, Knauf blown-in fiberglass, Rockwool mineral wool, GreenFiber recycled cellulose, and Icynene and Demilec spray foam. For most West Hollywood attics under original tile roofs, we recommend Owens Corning blown-in fiberglass after air-sealing. For flat-roof apartments, Demilec closed-cell spray foam is often the best fit. Call (877) 265-5712 for a material recommendation based on your roof type and insulation goals.
West Hollywood rarely freezes, so pipe insulation is not a concern. The problem is summer heat gain. Attic insulation here is about stopping radiant heat from turning your top floor into an oven. Title 24 cool-roof and radiant-barrier requirements also apply during any reroof or HVAC replacement, so getting the attic right now saves you from expensive fixes later. Beverly Hills homes have the same sun, but newer construction and larger lots make their attics easier to work in and less likely to have original unventilated tile roofs.
Yes. These buildings often have exposed ceiling joists and no attic ventilation, so mold shows up on the joists after years of condensation. We remove the mold, treat the wood, and install insulation that fits the limited access. Call (877) 265-5712 for a free estimate on your building.
Written by Allen Decker, Owner at North Tustin Insulation, serving West Hollywood homeowners with brand-specific attic insulation and removal expertise.