Fast, Reliable Attic Insulation Across Sherman Oaks
Attic insulation in Sherman Oaks runs $1,800 – $6,500 for a typical ranch home, depending on material and square footage. Most jobs are done in a single day, even in July. We know the Valley heat, and we schedule Sherman Oaks crews early so the work gets done before attic temperatures climb past 150°F. Call (866) 605-6949 for a free estimate and we’ll give you an honest read on what your attic actually needs, whether that’s a top-up, a full removal, or a radiant barrier.
Why Hollywood Insulation Co Is Sherman Oaks’s Preferred Attic Insulation Company
We’re an insulation specialist. That’s it. We don’t do roofing or HVAC or handyman work on the side. Every tech on our team spends their entire day in attics, and in Sherman Oaks that means spending a lot of time in 1950s ranch homes south of Ventura Blvd with bare rafters and settled rock wool. That focus matters when you’re diagnosing thermal bypasses and air leaks that a general contractor would walk right past.
We carry eight manufacturer brands across every major insulation category: fiberglass from Owens Corning and Johns Manville, mineral wool from Rockwool, spray foam from Icynene and Demilec, and recycled cellulose from GreenFiber. Three installation methods under one roof means we match the technique to your home, not to whatever’s on the truck. When a Sherman Oaks homeowner calls us about a hot upstairs bedroom in August, we look at the whole attic system before recommending anything.
Our crews know the streets here: the bungalows near the Boulevard, the bigger remodels climbing into the hills off Sepulveda, the ranch blocks south of Ventura. We’ve worked in 91403, 91413, 91423, and 91495 enough times to know what each pocket of Sherman Oaks tends to throw at us. Noel Camacho runs every install and estimate, so the person you talk to on the phone is the same person accountable for the job.
Attic Cleaning Services in Sherman Oaks
Attic Cleaning Services in Sherman Oaks usually mean removing decades of dust, rodent droppings, and the old settled insulation that’s been up there since the house was built. For most 1940s – 1960s ranch homes in this area, that’s a full-day job with a vacuum extraction system, and it runs $1,200 – $2,800 depending on attic size and how much material has to come out. If you’re seeing dust in the house, hearing scratching at night, or your insulation has compacted to a couple inches, a clean-out is the first step before any new insulation goes in.
Full Attic Clean-Out and Sanitizing
We remove everything down to the decking, sanitize the space, and prep it for new insulation. In Sherman Oaks homes built before 1960, we often find old rock wool that’s settled into a dense, dusty mat that’s doing almost nothing for your R-value. Getting it out is the only way to start fresh and air-seal the top plates properly.
Debris Removal and Old Insulation Extraction
Construction debris, old wiring fragments, and pest waste all come out before we recommend what goes back in. If your attic has knob-and-tube wiring, we flag it during this phase. That’s common in Sherman Oaks homes from the 1940s and 1950s, and it needs to be addressed before insulation covers it.
What happens when you call
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A real person answersNo phone trees — you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Attic Mold Removal in Sherman Oaks
Attic Mold Removal in Sherman Oaks is a job we see regularly, thanks to the combination of low-pitch roofs, limited ventilation, and the valley’s dry-but-occasionally-humid winter mornings. Attic mold removal typically costs $900 – $2,500 for a standard ranch attic, including treatment and addressing the moisture source. Mold in an attic is almost always a ventilation or air-leakage problem, not a leak from outside. Warm air from the living space rises into a cold attic, condenses on the underside of the roof deck, and that’s where the mold takes hold.
Mold Treatment and Source Correction
We treat the existing mold and then focus on the source: blocked soffit vents, bathroom fans venting into the attic instead of through the roof, or inadequate ridge venting. In Sherman Oaks, many mid-century homes have soffit vents that were painted over decades ago, leaving the attic with no intake air. We clear those, correct the airflow path, and the mold stays gone.
Post-Mold Insulation Replacement
Once the mold is treated and the ventilation fixed, the contaminated insulation usually has to come out. We remove, sanitize, and then install fresh material. Your options at this stage include blown-in fiberglass, Rockwool mineral wool for fire resistance and sound control, or GreenFiber cellulose for a recycled-content option. Each installs clean and leaves the attic ready to handle Sherman Oaks summers.
Trusted Brands We Service in Sherman Oaks
We stock and install materials from eight manufacturers, which means we’re not pushing one product line on every house. In Sherman Oaks we do a lot of Owens Corning fiberglass batt work for standard ranch attics, but we also install Icynene open-cell spray foam when air sealing is the top priority, and Demilec closed-cell foam for homes where R-value per inch matters because attic space is tight. GreenFiber cellulose shows up regularly on Sherman Oaks jobs where attic access is awkward and blown-in makes the most sense. Because we carry local inventory across these brands, we can turn most Sherman Oaks jobs around in two to four days from the estimate. If a material’s not on the truck, it’s usually in our shop within a day.
Common Attic Insulation Problems We See in Sherman Oaks Homes
- Settled rock wool in 1950s ranches. That original insulation has compacted to 2 – 3 inches, which gives you about R-5. That’s a quarter of what today’s code requires, and it’s the main reason Sherman Oaks homes with original insulation feel brutal upstairs in summer.
- Low-pitch roofs restricting ventilation. Mid-century Sherman Oaks homes often have shallow roof pitches, which leaves less room for air to move. Heat builds up, cooks the insulation, and shortens its lifespan. A radiant barrier becomes a legitimate part of the fix here.
- Knob-and-tube wiring in old attics. Homes built before about 1955 in Sherman Oaks sometimes still have active knob-and-tube. Covering it with insulation is a fire hazard. We always check, and if it’s present, we recommend an electrician handle separation before we install.
- Bare rafters with no insulation at all. We still find Sherman Oaks attics with nothing up there. Builders in the 1940s and 1950s just didn’t insulate attics the way we do now, and summer heat radiates straight through the ceiling into the bedrooms below.
Pricing for Attic Insulation in Sherman Oaks, CA
A typical attic insulation job in Sherman Oaks runs $1,800 – $6,500 for a standard single-story ranch. A straight top-up over existing insulation costs $0.90 – $1.50 per square foot, while a full removal and re-insulation runs $1.60 – $3.50 per square foot. Blown-in fiberglass or cellulose tends to land at the lower end; spray foam runs higher, particularly closed-cell Demilec or Icynene. Attic size is the biggest driver, but access, roof pitch, and whether we’re doing attic cleaning, mold removal, or adding a radiant barrier all move the number. Every estimate from us includes a full attic inspection, and it’s free. Call (866) 605-6949 and we’ll give you an exact figure for your house, not a range.
We Also Serve Cities Near Sherman Oaks
We run crews into Valley Glen and Van Nuys every week, and we’re regularly across the 101 in Studio City and over the hill into Encino. If you’re on the edge of Sherman Oaks or just outside, we cover you the same way we cover our Sherman Oaks customers: same-day estimates and next-week installs on most jobs. Our Attic Insulation team covers the entire San Fernando Valley and the surrounding area.
Serving Sherman Oaks, CA — Our Local Coverage Area
We’re based in the Sherman Oaks 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 Sherman Oaks
Sherman Oaks sits in the hottest part of the San Fernando Valley, and summer attic temperatures regularly exceed 150°F. That extreme heat degrades insulation faster than milder coastal climates, compacts fiberglass batts over time, and makes radiant barriers far more valuable than they are in cooler parts of LA. If your insulation is original to a 1950s home, it’s already underperforming. Call (866) 605-6949 for a free attic assessment.
Remove it. Settled rock wool in Sherman Oaks ranches compacts to 2 – 3 inches and provides about R-5, which is nearly useless. Adding new insulation on top traps the old material, leaves air leaks unsealed, and can trap moisture. A full removal lets us air-seal the attic and install R-38 or better, and it costs only slightly more than a top-up because the labor overlapping work is already happening. Call (866) 605-6949 and we’ll quote both options honestly.
Yes, but we schedule early. Attic temperatures in Sherman Oaks hit 150°F by mid-morning in July and August, so our crews start at 6:30 a.m. and usually finish by early afternoon. We also do a lot of blown-in and spray foam work during summer because those methods go faster than batt installation, which means less time in the heat. If you call with a week’s notice, we can usually get you on the schedule before the next heat wave. Call (866) 605-6949 for current availability.
For a low-pitch roof, blown-in fiberglass or cellulose works best because both conform to the shallow cavities without requiring tall rafters. If you need air sealing as well, Icynene open-cell spray foam is the upgrade: it fills every gap, stops air leaks, and delivers high R-value per inch. In Sherman Oaks, where low-pitch roofs trap heat and restrict ventilation, adding a radiant barrier makes a measurable difference. Call (866) 605-6949 to discuss what your roof will support.
Yes, we do full attic mold removal in Sherman Oaks, including treatment, source correction, and insulation replacement if the contaminated material has to come out. Mold in Sherman Oaks attics is usually caused by poor ventilation or bathroom fans venting into the attic, not roof leaks. We fix the airflow problem, treat the mold, and re-insulate. Most mold jobs run $900 – $2,500. Call (866) 605-6949 for a free inspection and honest recommendation.
We’re on Sherman Oaks roads every day. If your attic is hot, dusty, or under-insulated, call (866) 605-6949 or reach out online. Estimates are free, and we’ll tell you what’s actually going on up there before recommending anything.
Written by Noel Camacho, Owner at Hollywood Insulation Co, serving Sherman Oaks and the San Fernando Valley.