Insulation Company in Hollywood, CA
Blown in insulation solves a specific problem in Hollywood: 1920s and 1930s wood-frame apartments and bungalows that were built with little or no thermal protection in the attic, where summer heat gets trapped and pushes indoor temperatures past 95 degrees. Most of the original material in these buildings has compacted to a thin, ineffective layer, and knob-and-tube wiring often runs through the same spaces where new insulation must go. Laguna Hills Insulation has served Hollywood since 2014, handling the full range of wall and attic retrofits with a material-agnostic approach across blown-in, attic, and spray foam methods. Call (866) 393-6041 for a free estimate.
Why Hollywood Homes Are Different
Hollywood’s 90028 ZIP is packed with pre-war courtyard apartments, fourplexes, and 1920s – 1960s wood-frame buildings, along with scattered single-family bungalows. Many of these structures still carry their original insulation – often newspaper, sawdust, or nothing at all – and countless attics hide knob-and-tube wiring that complicates any retrofit. The Mediterranean climate means annual heating and cooling loads are modest, but the real problem is thermal gain on west-facing upper-floor units, which absorb afternoon sun through uninsulated walls and radiate that heat inward for hours after dark. A blown-in retrofit on a Hollywood apartment attic frequently unearths storage conversions and blocked soffit vents, which must be cleared and restored before any material goes in. Rent-controlled buildings under LA’s RSO add another layer: work often happens during seismic retrofits or major renovations, and the landlord-tenant split on who pays shapes the conversation from day one.
Our Main Hollywood Services
Two jobs dominate our Hollywood call list: attic insulation in the older wood-frame buildings throughout 90028, and spray foam for the occasional new build, ADU, or gut renovation where air sealing matters as much as R-value.
Attic Insulation in Hollywood
Attic retrofits here mean working around knob-and-tube wiring, clearing out decades of stored belongings and illegal conversions, and restoring ventilation before new material goes in. We inspect the ceiling plane, air-seal the bypasses, and choose a batt or blown product that matches the framing. Attic Insulation in Hollywood covers the full scope of that work, including what it costs and how we handle RSO properties.
Spray Foam Insulation in Hollywood
Where an old Hollywood building has been opened up for a seismic retrofit or an unpermitted addition is being legalized, closed-cell spray foam often makes the most sense – it creates an air barrier, a vapor barrier, and R-value in one pass. We run Icynene and Demilec product lines for that work. Spray Foam Insulation in Hollywood breaks down open-cell versus closed-cell choices and the specific conditions where foam wins over blown-in material.
What happens when you call
- 1
A real person answersNo phone trees — you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Blown In Insulation in Hollywood
Blown in insulation is the workhorse retrofit for Hollywood’s older apartments and bungalows. The process involves blowing loose fiberglass or cellulose through a hose into attic floors and wall cavities, filling voids that batt insulation can’t reach without tearing open walls. In a 1920s courtyard building, that reach matters: original framing is irregular, and the goal is a continuous thermal layer across an attic floor that may have been patched, re-floored, or converted to storage over nine decades. We run Blown In Insulation as a core method because it adapts to the framing reality of older buildings better than any rigid product.
Cellulose Insulation
Signs you need it
Your attic floor has a thin, dusty layer of old material that looks like it’s been there since the building went up, and rooms below get uncomfortably hot by mid-afternoon.
What it costs in Hollywood
Cellulose blown-in runs $1.15 – $1.65 per square foot in Hollywood attics, with most 1,000-square-foot jobs landing between $1,150 and $1,650.
How we do it
We clear the attic of debris, verify the wiring is safe to cover, air-seal the penetrations, then blow recycled cellulose to the specified depth with a blower truck and hose.
Blown In Attic Insulation
Signs you need it
Rooms under the attic run hot in summer and cold in winter, and a visual check shows batt insulation that’s matted down or missing across large sections.
What it costs in Hollywood
Blown in attic insulation in Hollywood typically ranges $1.10 – $2.00 per square foot, or roughly $1,650 – $3,700 for a 1,500-square-foot attic depending on target R-value and access.
How we do it
We measure the existing R-value, run the hose from a truck-mounted blower to the attic hatch, and blow loose fill evenly across the floor to the depth the project calls for.
What Blown In Insulation Costs in Hollywood
| Item | Typical range in Hollywood |
|---|---|
| Cellulose attic blow-in (per sq ft) | $1.15 – $1.65 |
| Fiberglass attic blow-in (per sq ft) | $1.10 – $1.50 |
| Whole-attic project (1,500 sq ft) | $1,650 – $3,700 |
How much does blown in insulation cost in Hollywood?
Most Hollywood blown-in jobs run $1.10 to $2.00 per square foot, so a typical 1,200-square-foot attic lands between $1,300 and $2,400 before any air-sealing or prep work. Call (866) 393-6041 for an exact quote on your building.
Can you blow insulation over old insulation in a Hollywood attic?
Yes, as long as the old material is dry and the attic has no active knob-and-tube wiring that needs to stay exposed. We inspect first, then blow new material directly on top to reach the target R-value.
Brands We Service in Hollywood
We stock and install materials from eight manufacturer brands, and for Hollywood’s older buildings we reach most often for GreenFiber cellulose, Owens Corning fiberglass, and Demilec spray foam. Parts and materials are stocked locally, so turnaround on a typical attic job runs one to two days. See our brands for the full lineup.
Pricing for Insulation Company in Hollywood, CA
| Service | Typical range in Hollywood |
|---|---|
| Blown in attic insulation (per sq ft) | $1.10 – $2.00 |
| Cellulose blow-in (per sq ft) | $1.15 – $1.65 |
| Fiberglass blow-in (per sq ft) | $1.10 – $1.50 |
| Whole-attic project (1,500 sq ft) | $1,650 – $3,700 |
| Spray foam insulation (closed-cell, per sq ft) | $1.50 – $3.50 |
| Spray foam insulation (open-cell, per sq ft) | $0.80 – $1.80 |
| Attic air sealing | $500 – $1,400 |
What pushes a Hollywood price up is access: a low attic hatch, a converted storage space, knob-and-tube wiring that needs an electrician’s clearance, or a west-facing upper unit that demands a higher R-value. We quote a single upfront price before work starts, and the number we give you is the number on the invoice.
Neighborhoods We Serve in Hollywood
We work throughout the 90028 ZIP and the surrounding Hollywood area, from the courtyard buildings south of Franklin Avenue to the bungalow blocks near Santa Monica Boulevard and the hillside streets below the Hollywood sign. Our crews are usually on site within one to two days of your call.
- Hollywood Heights
- Whitley Heights
- Hollywood Dell
- Little Armenia
- Thai Town
Service Area – Cities Near Hollywood
For homeowners and property managers on the edges of our Hollywood coverage area, we also run full insulation service in Universal City, CA, West Hollywood, CA, Koreatown, CA, and Echo Park, CA. If your building sits in one of those neighborhoods, the same crew and the same material lineup apply.
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.
FAQs About Insulation Company in Hollywood
Yes. We work regularly with property owners and managers on RSO properties in Hollywood, typically as part of a larger renovation, seismic retrofit, or repair scope. We coordinate access, schedule around tenants, and document the work for permit records when the city requires it.
Most Hollywood jobs are scheduled within one to two days of your call. Attic retrofits in smaller courtyard buildings usually finish in a single day; larger buildings with multiple units or heavy prep work may run two to three days depending on access and wiring conditions.
Most standalone insulation jobs in Hollywood don’t need a permit, but any work tied to a larger renovation, ADU legalization, or seismic retrofit will fall under that project’s permit. We handle the insulation scope within those permits and coordinate with your general contractor as needed.
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.
- 3A background-checked tech heads outLicensed & insured, typically within 1-hour.
- 4You approve before work beginsNothing starts until you say go.
What Hollywood Customers Say
"Told me the crawlspace didn't need doing and only the attic did. Half the job, half the money."
— Hector Hernandez"He did a blower door test before and after and gave me the numbers. I like being able to see the difference rather than being told about it."
— Elena Herrera"Found and sealed a gap around the chimney chase that was basically an open chimney to the attic."
— Sofia Vargas