Insulation in West Hollywood, CA
Crawl space encapsulation and vapor barrier installation in West Hollywood typically runs $3,200-$6,800 for the dingbat walk-ups and courtyard apartments that dominate this market, with most jobs completed in two days. West Hollywood’s pre-1960s housing stock sits on crawl spaces that were never sealed against moisture, and the trapped summer heat between the Santa Monica Mountains and the LA basin pushes humidity levels higher than coastal neighborhoods just miles away. We start every job with a written price and a blower-door baseline, and we won’t install insulation until the air sealing is documented. Call (213) 816-1699 for a free estimate.
Why West Hollywood Homes Are Different
West Hollywood’s building fabric is almost entirely 1920s-1950s stucco courtyard apartments and 1950s-60s dingbat walk-ups, wood-frame structures over open carports that were built with no wall insulation and minimal attic space. Shared party walls, continuous stucco cladding, and the city’s aggressive green building retrofit ordinances mean we’re working in occupied, multi-unit buildings where California Title 24 thermal compliance and acoustic performance have to be solved simultaneously.
The city’s position in the low inland corridor traps radiant heat in dense urban blocks more than Santa Monica or Venice, making attic radiant barriers and wall retrofits more impactful here than the Mediterranean climate label would suggest. A large share of residents work in music, film, and entertainment and routinely request acoustic insulation in party walls and bedroom ceilings beyond code minimums. A contractor who bids only to Title 24 specs without quoting a combined thermal-plus-soundproofing scope usually loses these jobs.
Our Main West Hollywood Services
Most West Hollywood homeowners who call us start with attic work or whole-envelope spray foam, but the housing stock here drives demand across our full service line.
Attic Insulation in West Hollywood
Dingbat walk-ups with shallow, unvented attic cavities and courtyard apartments with flat roofs and scant overhead space make attic insulation in West Hollywood a retrofit specialty. We use blown-in mineral wool from Rockwool or fiberglass from Johns Manville, matched to the cavity depth and the existing air-sealing condition. Every attic job includes top-plate sealing and a documented photo record. Attic Insulation in West Hollywood
Spray Foam Insulation in West Hollywood
Spray foam insulation in West Hollywood works best for open crawl spaces, unsealed rim joists, and the irregular framing common in 1950s dingbat construction. We specify open-cell or closed-cell Icynene or Demilec products based on moisture exposure and fire-code requirements, never as a default. The written scope defines foam thickness, R-value target, and ignition barrier needs before the rig arrives. Spray Foam Insulation in West Hollywood
Blown-In Insulation in West Hollywood
Blown-in insulation in West Hollywood is the standard retrofit for shared wall cavities and shallow attics where batts won’t fit or will leave gaps. We dense-pack Knauf or CertainTeed fiberglass into closed cavities and loose-fill attic floors where access allows, always after air sealing is complete and blower-door verified. The material choice is specified in writing, not left to the crew’s discretion. Blown-In Insulation in West Hollywood
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.
Before
AfterCrawl Space Encapsulation & Vapor Barrier in West Hollywood
West Hollywood’s dingbat walk-ups and older courtyard apartments sit on vented crawl spaces that were never designed to manage moisture, and the inland heat corridor pushes summer humidity against cool floor joists in a pattern we see repeatedly in buildings between Santa Monica Boulevard and Melrose. Crawl Space Encapsulation & Vapor Barrier is often the first step before any floor insulation goes in, because wet fiberglass loses R-value and grows mold. We document the existing condition with photos, deliver a written price for encapsulation or barrier-only, and provide before-and-after moisture readings.
Crawl Space Vapor Barrier
Signs you need it
Standing water after rain, white efflorescence on the foundation walls, or a persistent musty smell rising through floor registers in first-floor units.
What it costs in West Hollywood
A 6-mil to 20-mil vapor barrier installed over bare earth in a typical West Hollywood crawl space runs $1,800-$3,400.
How we do it
We remove debris, grade the soil for drainage, seam-seal the barrier with tape rated for underground use, and run it up the foundation walls to a mechanical fastener.
Crawl Space Encapsulation
Signs you need it
Rotting sill plates, rusted ductwork, or fiberglass insulation falling from the joists in black, water-stained clumps.
What it costs in West Hollywood
Full encapsulation with sealed vents, dehumidifier, and insulated rim joists in a West Hollywood dingbat crawl space typically ranges $4,500-$8,200.
How we do it
We seal all vents and penetrations, install a reinforced vapor barrier on walls and floor, add rigid foam to rim joists, and size a condensate-pumped dehumidifier to the sealed volume.
What Crawl Space Encapsulation & Vapor Barrier Costs in West Hollywood
| Item | Typical range in West Hollywood |
|---|---|
| Vapor barrier only (6-20 mil) | $1,800 - $3,400 |
| Full encapsulation with dehumidifier | $4,500 - $8,200 |
| Rim joist insulation add-on | $900 - $1,600 |
How long does crawl space encapsulation take in West Hollywood?
Most vapor barrier jobs finish in one day; full encapsulation with dehumidifier takes two to three days in a typical dingbat crawl space. We coordinate access with property management for multi-unit buildings.
Will encapsulation fix floor squeaks or soft spots?
Encapsulation stops moisture damage but does not repair structural decay; we photograph and report any compromised joists or subfloor before sealing. Call (213) 816-1699 for an inspection and written scope.
Radiant Barrier Installation in West Hollywood
West Hollywood’s dense urban block pattern and inland position trap summer radiant heat in attics more aggressively than coastal neighborhoods, and the shallow, unvented attic cavities common in 1950s-60s dingbats amplify the effect on top-floor units. Radiant Barrier Installation reduces attic surface temperatures by reflecting infrared radiation rather than absorbing it, which matters in buildings where adding ventilation is structurally impractical.
Attic Radiant Barrier
Signs you need it
Top-floor rooms that stay hot past 10 p.m., air conditioning running continuously in summer, or ductwork in the attic feeling hot to the touch.
What it costs in West Hollywood
Radiant barrier foil stapled to rafters or laid over attic floor insulation in a typical West Hollywood attic runs $1,400-$2,800.
How we do it
We measure attic dimensions, cut perforated foil or radiant barrier sheathing to fit, and fasten with cap staples that won’t tear the material during thermal expansion.
Radiant Barrier Roof Deck
Signs you need it
Flat or low-slope roof assemblies with no attic ventilation path, or reroofing projects where the sheathing is exposed.
What it costs in West Hollywood
Radiant barrier applied to roof deck sheathing during reroofing or retrofit access in West Hollywood typically ranges $2,200-$4,100.
How we do it
We install radiant barrier OSB or foil-faced sheathing when the roof deck is accessible, sealing seams with foil tape and verifying no gaps at valleys or penetrations.
What Radiant Barrier Installation Costs in West Hollywood
| Item | Typical range in West Hollywood |
|---|---|
| Attic radiant barrier (foil) | $1,400 - $2,800 |
| Radiant barrier roof deck | $2,200 - $4,100 |
| Radiant barrier with attic air sealing | $2,800 - $5,200 |
Does radiant barrier work with existing insulation?
Yes, we install over or under existing insulation after verifying it is dry and uncontaminated; wet or degraded insulation is removed first and priced separately.
Will radiant barrier help my air conditioning bills?
Attic radiant barriers typically reduce cooling loads 5-10 percent in West Hollywood’s climate, with greater impact on top-floor units and buildings with ductwork in the attic. Call (213) 816-1699 for a home energy audit with thermal imaging.
Insulation Removal & Replacement in West Hollywood
West Hollywood’s pre-1960s housing stock contains vermiculite, rock wool, and early fiberglass products that have settled, compressed, or been compromised by roof leaks and rodent activity over decades of deferred maintenance. Insulation Removal & Replacement is common in courtyard apartments where multiple roof drains have failed and in dingbat attics where pigeons and roof rats have nested in the fiberglass.
Contaminated Insulation Removal
Signs you need it
Visible droppings, urine stains, or a strong ammonia smell in the attic; insulation that disintegrates when touched or shows dark discoloration throughout.
What it costs in West Hollywood
Contaminated insulation removal with HEPA containment and disposal in a typical West Hollywood attic or crawl space runs $2,400-$4,600.
How we do it
We establish negative air pressure, remove material in sealed bags, HEPA-vacuum all surfaces, and apply an EPA-registered sanitizer before any new insulation is specified.
Vermiculite & Old Insulation Removal
Signs you need it
Pebbly, gray-brown granular insulation that may contain asbestos, or any insulation installed before 1990 in a building with no renovation records.
What it costs in West Hollywood
Vermiculite removal with asbestos testing, abatement coordination, and disposal in West Hollywood typically ranges $4,200-$8,500 depending on lab turnaround and containment needs.
How we do it
We collect a sample for NVLAP-accredited testing, write a scope based on the result, and use licensed abatement partners if asbestos is confirmed, with photo documentation at each stage.
What Insulation Removal & Replacement Costs in West Hollywood
| Item | Typical range in West Hollywood |
|---|---|
| Contaminated insulation removal | $2,400 - $4,600 |
| Vermiculite removal with testing | $4,200 - $8,500 |
| Insulation replacement (after removal) | $2,800 - $5,400 |
Do I have to leave during insulation removal?
For standard fiberglass removal, no; for vermiculite or confirmed contamination, we coordinate temporary relocation with the abatement schedule and provide written clearance documentation.
Can you remove insulation from just one unit in a multi-family building?
Yes, we contain the work area and maintain negative pressure to prevent cross-contamination, though shared attic spaces may require building-wide coordination. Call (213) 816-1699 for a scope and written price.
Attic Air Sealing in West Hollywood
West Hollywood’s 1950s-60s dingbat apartments and courtyard buildings were framed with minimal attention to the building envelope, and decades of electrical, plumbing, and HVAC modifications have punched hundreds of unsealed penetrations through top plates and ceiling drywall. Attic Air Sealing is the prerequisite we never skip: blower-door testing in WeHo buildings routinely shows 3,500-5,500 CFM50 before sealing, with 40-60 percent reduction possible in a single day of targeted work.
Top Plate & Penetration Sealing
Signs you need it
Dust streaks around ceiling light fixtures, rooms that smell like the unit below, or exterior walls that feel drafty despite closed windows.
What it costs in West Hollywood
Top plate and penetration sealing in a typical West Hollywood apartment or small multi-family building runs $1,600-$3,200.
How we do it
We locate all top plates with blower-door-directed infrared scanning, seal with fire-rated caulk or foam, and verify with a post-sealing blower-door test documented in the job record.
Can Light & Duct Boot Sealing
Signs you need it
Attic air blowing through recessed can lights, or supply ducts disconnected from boots so they vent into the attic instead of the room.
What it costs in West Hollywood
Can light sealing with approved covers and duct boot reconnection in West Hollywood typically ranges $900-$2,400 depending on access and fixture count.
How we do it
We install fire-rated, airtight covers over IC and non-IC cans, seal with high-temperature caulk, and reconnect or replace flex duct with proper mechanical supports.
What Attic Air Sealing Costs in West Hollywood
| Item | Typical range in West Hollywood |
|---|---|
| Top plate & penetration sealing | $1,600 - $3,200 |
| Can light & duct boot sealing | $900 - $2,400 |
| Full attic air sealing with blower-door test | $2,800 - $5,600 |
How much does air sealing lower my energy bills?
Air sealing alone typically reduces heating and cooling costs 15-25 percent in West Hollywood’s leaky stock, with the biggest impact on top-floor units and buildings with ductwork in vented attics.
Can air sealing be done without removing insulation?
Yes, we work around existing insulation where possible, though compressed or contaminated material is flagged for removal before sealing begins. Call (213) 816-1699 for a free inspection and written price.
Wall Insulation in West Hollywood
West Hollywood’s stucco-clad courtyard apartments and dingbat walk-ups were built with empty wall cavities, no continuous insulation, and party walls that transmit sound between units as readily as heat. Wall Insulation here must solve thermal and acoustic performance together, because residents who work in entertainment routinely reject bids that address only Title 24 compliance.
Injection Foam Wall Insulation
Signs you need it
Exterior walls that are hot to the touch in summer, cold in winter, or rooms where street noise is clearly audible through closed windows.
What it costs in West Hollywood
Injection foam for thermal and acoustic performance in a typical West Hollywood apartment unit runs $3,200-$5,800.
How we do it
We drill 5/8-inch holes through interior drywall or exterior stucco at stud spacing, inject slow-rise foam to fill the cavity without bowing, and patch with matching texture.
Interior Wall Soundproofing
Signs you need it
Voices, music, or foot traffic audible through party walls, or bedroom walls shared with bathrooms or kitchens in converted units.
What it costs in West Hollywood
Interior wall soundproofing with mineral wool and resilient channel in West Hollywood typically ranges $2,800-$5,200 per wall.
How we do it
We remove drywall, install Rockwool Safe’n’Sound between studs, add resilient channel to decouple the finish layer, and close with two layers of 5/8-inch drywall.
What Wall Insulation Costs in West Hollywood
| Item | Typical range in West Hollywood |
|---|---|
| Injection foam wall insulation | $3,200 - $5,800 |
| Interior wall soundproofing | $2,800 - $5,200 |
| Drill & fill cellulose (thermal only) | $2,400 - $4,400 |
Does injection foam damage stucco?
Exterior injection requires drilling through stucco, which we patch with matching color and texture; interior injection avoids exterior disruption but requires room clearance.
Will soundproofing meet building code?
Our acoustic assemblies exceed STC 50, which satisfies West Hollywood’s multi-family requirements and most HOA rules, with test documentation provided on request. Call (213) 816-1699 for a written scope and price.
Attic Cleaning & Rodent Proofing in West Hollywood
West Hollywood’s dense urban environment, mature tree canopy, and abundance of roof-access points from adjacent buildings make attics prime territory for roof rats, squirrels, and pigeons, especially in unmaintained dingbat and courtyard structures. Attic Cleaning & Rodent Proofing is often the discovery phase that reveals why insulation isn’t performing: shredded fiberglass, compacted droppings, and chewed wiring are routine findings in WeHo attics.
Attic Sanitizing & Decontamination
Signs you need it
Visible droppings, nesting material, or a persistent organic smell that HVAC circulation spreads throughout the unit.
What it costs in West Hollywood
Attic sanitizing and decontamination with enzyme treatment and HEPA filtration in West Hollywood runs $1,800-$3,400.
How we do it
We remove all organic material, apply enzyme cleaner to break down urine proteins, HEPA-vacuum every surface, and run an ozone or hydroxyl treatment before clearance.
Rodent Proofing & Exclusion
Signs you need it
New droppings after previous cleanup, gnaw marks on wood or wiring, or hearing movement in walls or ceiling during quiet hours.
What it costs in West Hollywood
Rodent proofing with exclusion screening, vent covers, and gap sealing for a typical West Hollywood building typically ranges $1,400-$2,800.
How we do it
We inspect roofline, eaves, vents, and utility penetrations with a 1/4-inch mesh standard, install chew-proof metal flashing, and provide a photo map of every sealed entry point.
What Attic Cleaning & Rodent Proofing Costs in West Hollywood
| Item | Typical range in West Hollywood |
|---|---|
| Attic sanitizing & decontamination | $1,800 - $3,400 |
| Rodent proofing & exclusion | $1,400 - $2,800 |
| Attic restoration (cleaning + new insulation) | $3,600 - $6,800 |
How do I know if rodents are gone before you seal?
We set monitoring traps and inspect for fresh activity for 5-7 days before final exclusion; sealing active rodents inside creates a worse problem.
Does rodent proofing include trapping?
We coordinate with licensed pest control for active infestations, then perform structural exclusion and insulation replacement; we do not trap or bait ourselves. Call (213) 816-1699 for a combined scope and written price.
Home Energy Audit in West Hollywood
West Hollywood’s retrofit-driven market and aggressive green building ordinances make documented energy performance increasingly valuable for sales, refinancing, and HOA compliance in multi-unit buildings. Home Energy Audit gives homeowners and property managers a written baseline with prioritized improvements, blower-door numbers, and thermal images that satisfy lender and city requirements.
Blower Door Test
Signs you need it
Pre-retrofit baseline before insulation work, post-work verification, or documentation for a green building rebate or compliance filing.
What it costs in West Hollywood
A standalone blower-door test with written report in West Hollywood runs $450-$750; it is included at no charge when bundled with air sealing or insulation work.
How we do it
We install a calibrated fan in an exterior door, depressurize to 50 Pascals, measure CFM50, and locate leaks with infrared imaging and smoke pencil.
Thermal Imaging Inspection
Signs you need it
Uneven temperatures between rooms, suspected missing insulation in walls, or moisture intrusion that shows as cold spots on exterior surfaces.
What it costs in West Hollywood
Thermal imaging inspection with digital report in West Hollywood typically ranges $350-$650, often combined with blower-door testing.
How we do it
We scan interior and exterior surfaces with a FLIR camera during controlled temperature differential, mark anomalies on floor plans, and interpret findings with the homeowner present.
What Home Energy Audit Costs in West Hollywood
| Item | Typical range in West Hollywood |
|---|---|
| Blower door test (standalone) | $450 - $750 |
| Thermal imaging inspection | $350 - $650 |
| Full home energy audit (both + report) | $750 - $1,400 |
Is a home energy audit required for rebates?
Most LADWP and SoCalGas rebate programs require pre- and post-work blower-door documentation; we format reports to their submission standards.
How long does a home energy audit take?
A full audit with blower-door and thermal imaging takes 2.5-4 hours in a typical West Hollywood apartment or small multi-family building; reports are delivered within 48 hours. Call (213) 816-1699 to schedule and receive a written price.
Brands We Service in West Hollywood
We stock and install Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, Demilec, and GreenFiber products, with no proprietary lock-in that limits material choice to a single manufacturer. Our Los Angeles office maintains local inventory for common West Hollywood retrofit specifications, and most materials are on-site within 24 hours of written scope approval. our brands
Pricing for Insulation in West Hollywood, CA
| Service | Typical range in West Hollywood |
|---|---|
| Crawl space vapor barrier | $1,800 - $3,400 |
| Full crawl space encapsulation | $4,500 - $8,200 |
| Attic radiant barrier | $1,400 - $2,800 |
| Radiant barrier roof deck | $2,200 - $4,100 |
| Contaminated insulation removal | $2,400 - $4,600 |
| Vermiculite removal with testing | $4,200 - $8,500 |
| Top plate & penetration sealing | $1,600 - $3,200 |
| Can light & duct boot sealing | $900 - $2,400 |
| Injection foam wall insulation | $3,200 - $5,800 |
| Interior wall soundproofing | $2,800 - $5,200 |
| Attic sanitizing & decontamination | $1,800 - $3,400 |
| Full home energy audit | $750 - $1,400 |
Prices in West Hollywood trend toward the upper end of these ranges for multi-unit buildings with limited access hours, parking restrictions, or HOA coordination requirements. Every job begins with a written price under Haven Standard Clause 1, and we provide a Free Second Opinion on any competing written estimate.
Neighborhoods We Serve in West Hollywood
Our crews work throughout West Hollywood with dispatch coordinated from our Los Angeles office; most appointments are scheduled within 48 hours of call.
- West Hollywood West
- Norma Triangle
- Sunset Strip
- WeHo Heights
- Design District
Service Area - Cities Near West Hollywood
We serve West Hollywood directly and travel regularly to neighboring communities for building envelope work. Homeowners in Beverly Hills, CA often share the same stucco courtyard stock and Title 24 compliance needs. We also work in Culver City, CA for post-war bungalow retrofits, Glendale, CA for hillside building envelope challenges, and Burbank, CA for studio district multi-family properties.
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 Insulation in West Hollywood
Yes, we provide written scopes, certificate of insurance, and photo documentation formatted for HOA and property manager review; most West Hollywood multi-family work requires 48-hour notice to building management for access.
Interior insulation retrofits in existing units typically do not require permits; exterior wall injection, roof deck work, and any structural modification trigger West Hollywood Building Division review, which we coordinate with the written scope.
A live person answers our line 24/7, and we schedule most West Hollywood inspections within 1-2 business days; emergency water or rodent damage calls are prioritized same-day when possible. Call (213) 816-1699 for a free estimate with a written price before any work starts.
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 30-60 min.
- 4You approve before work beginsNothing starts until you say go.
What West Hollywood Customers Say
"Two other companies quoted to blow more insulation on top of what was there. These were the only ones who said the existing material had to come out first, and explained why."
- Clifford E."Crawl space encapsulation done properly. Photographs of the vapour barrier at every seam, and the damp smell in the hallway is gone."
- Ainsley P."They photographed rodent damage in the old insulation that we had no idea about, and priced the exclusion work separately so we could decide."
- Harriet N.