Insulation Company in North Hollywood, CA
Blown in insulation is the workhorse retrofit for North Hollywood’s older housing stock, and it’s the service we recommend most often here. Homes built in the 1940s and 50s across the San Fernando Valley rarely have more than a few settled inches of attic insulation, which means summer attic temperatures above 140°F push straight into living spaces and force air conditioners to run constantly. Fountain Valley Insulation matches the right material to each North Hollywood home, whether that’s loose-fill cellulose for a tract house attic or blown-in fiberglass for a mid-century apartment conversion. Call (833) 390-3099 to schedule an attic assessment.
Why North Hollywood Homes Are Different
North Hollywood’s housing stock is a dense mix of 1940s and 1950s stucco tract homes, postwar dingbat apartments, and newer infill townhomes clustered around the NoHo Arts District and the Red Line station. The common thread is age: most original attics in the 91611, 91612, 91615, and 91616 ZIP codes were insulated to standards that assumed cheap natural gas and mild coastal weather, not the inland Valley heat that now defines every summer. We routinely open attic hatches in North Hollywood to find rock wool or blown fiberglass settled to a couple of inches, with unsealed penetrations around old recessed lights and plumbing vents. Add in the strong afternoon sun and Santa Ana wind events that bake roofs all day, and you get attics that act like radiant ovens. The work here is almost always a retrofit, not new construction, which changes how we approach access, air sealing, and material selection.
Mid-century apartment conversions present a second pattern. Many dingbat buildings in North Hollywood have zero wall insulation, and the arts-loft rehabs near the NoHo Arts District often leave exposed brick and thin party walls between units. Retrofit blown-in cellulose or fiberglass can be installed into existing wall cavities with minimal disruption, which matters when tenants are living on both sides of a wall. The third pattern is the ADU conversion: North Hollywood’s newer detached units and garage conversions over unvented laundry rooms often need both attic and wall insulation to meet Title 24 energy requirements. Fountain Valley Insulation has served North Hollywood since 2014, and we’ve seen every one of these conditions.
Our Main North Hollywood Services
Two services account for most of the calls we get from North Hollywood homeowners: attic insulation retrofits and spray foam for hard-to-reach or uninsulated wall cavities. Each has its own dedicated North Hollywood page with full pricing and local detail.
Attic Insulation in North Hollywood
Attic insulation in North Hollywood is the single highest-impact upgrade for most homes here. The Valley summer turns under-insulated attics into ovens, and adding high-R blown-in insulation or batt insulation directly reduces cooling load and evens out room temperatures. Older North Hollywood tract homes often have settled original insulation and unsealed penetrations that allow conditioned air to escape, so we address both insulation depth and air sealing. See Attic Insulation in North Hollywood for local pricing, the materials we recommend for Valley heat, and what a typical retrofit involves.
Spray Foam Insulation in North Hollywood
Spray foam insulation in North Hollywood solves a different set of problems: uninsulated wall cavities in older dingbat apartments, awkward roof deck applications on arts-loft conversions, and sealing rim joists where tract homes leak air. Closed-cell spray foam adds structural rigidity and an air barrier in one pass, which is why we specify it for hard-to-reach cavities and complicated rooflines. We install Icynene and Demilec spray foam, two of the most recognized names in the category. Details are on the Spray Foam Insulation in North Hollywood page.
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 North Hollywood
Blown in insulation is the most common retrofit we install in North Hollywood because it fits the housing stock so well: loose-fill material can be blown over existing settled insulation, into closed wall cavities, and around awkward attic framing without removing drywall or tearing up finished spaces. In a 1950s Valley tract home with two inches of settled rock wool above unvented laundry rooms, we can bring the attic to current R-value recommendations in a single day and cut the heat pouring into bedrooms below. It’s a targeted fix for the exact problem North Hollywood summers create. For a full look at the method and materials, see our Blown In Insulation service hub.
Blown In Attic Insulation
Signs you need it
Upstairs rooms that run ten degrees hotter than the rest of the house during North Hollywood summer afternoons, or attic insulation you can see between joists at a depth of under six inches, both point to inadequate attic coverage.
What it costs in North Hollywood
Blown-in attic insulation for a typical North Hollywood tract home runs from $1,200 to $3,200 depending on square footage and target R-value.
How we do it
We air-seal penetrations around recessed lights and plumbing vents, then blow loose-fill insulation evenly across the attic floor to the agreed R-value in a single pass.
Blown In Cellulose Insulation
Signs you need it
High heating and cooling bills in a 1940s or 1950s North Hollywood home with original wall cavities usually mean there’s little or no insulation behind the stucco or wood siding.
What it costs in North Hollywood
Wall cavity cellulose retrofits in North Hollywood typically range from $1,800 to $4,500 depending on the number of stories and wall area.
How we do it
We drill small access holes through siding or drywall, blow cellulose into each stud bay to full density, then patch the holes flush for painting.
Blown In Fiberglass Insulation
Signs you need it
Open attic floors in North Hollywood homes that show settled, patchy fiberglass from decades ago need a fresh blown-in layer to restore effective coverage.
What it costs in North Hollywood
Blown-in fiberglass for attic re-insulation in North Hollywood ranges from $1,000 to $2,800 for standard 800 to 1,500 square foot attics.
How we do it
We run a hose from the truck to the attic, blow fiberglass uniformly across the floor, and fluff it to the specified depth with a rake for consistent R-value.
What Blown In Insulation Costs in North Hollywood
| Item | Typical range in North Hollywood |
|---|---|
| Attic re-insulation (blown-in, 800 – 1,500 sq ft) | $1,200 – $3,200 |
| Wall cavity retrofit (blown-in cellulose or fiberglass) | $1,800 – $4,500 |
| Floor or crawlspace blown-in insulation | $900 – $2,200 |
Does blown in insulation work for older North Hollywood homes?
Yes. Blown in insulation is suited to North Hollywood’s older homes because it can be installed into existing walls and attics without tearing out drywall or finish materials, and it fills irregular framing cavities completely.
How long does a blown in insulation job take in North Hollywood?
Most attic re-insulation jobs in North Hollywood are completed in one day, including air sealing. Wall cavity retrofits may take two or three days depending on wall area and access. Call (833) 390-3099 for a specific timeline.
Brands We Service in North Hollywood
Fountain Valley Insulation carries eight manufacturer brands, and in North Hollywood we stock the ones that matter most for Valley heat and older construction: Rockwool for fire- and moisture-resistant mineral wool, CertainTeed for fiberglass batts and blown-in, and Icynene and Demilec for spray foam. Most North Hollywood jobs are supplied from our local stock within days, not weeks. See our brands for the full lineup.
Pricing for Insulation Company in North Hollywood, CA
| Service | Typical range in North Hollywood |
|---|---|
| Attic insulation (blown-in or batt, 800 – 1,500 sq ft) | $1,200 – $3,200 |
| Attic air sealing + insulation package | $1,800 – $4,200 |
| Wall insulation retrofit (blown-in) | $1,800 – $4,500 |
| Spray foam rim joist sealing | $900 – $2,400 |
| Spray foam wall cavity or roofline | $3,000 – $8,500 |
| Floor or crawlspace insulation | $900 – $2,200 |
| Soundproofing insulation (interior walls or duct wrap) | $1,200 – $4,600 |
| Full home insulation package (attic + walls + floor) | $6,000 – $15,000 |
The biggest price drivers in North Hollywood are wall access (stucco exteriors require more drill-and-patch work than wood siding), the presence of knob-and-tube wiring that must be cleared before insulation goes in, and whether the job includes air sealing. Every quote is upfront before work begins, and we don’t add surprise charges at the end.
Neighborhoods We Serve in North Hollywood
We cover every North Hollywood ZIP code including 91611, 91612, 91615, and 91616, from the NoHo Arts District west to Valley Village and north toward Sun Valley. Most calls in these neighborhoods get a same-week response, and we regularly schedule attic assessments before the hottest months hit.
- NoHo Arts District
- Valley Village
- West North Hollywood
- North Hollywood Hills
- South of Burbank Blvd
Service Area – Cities Near North Hollywood
Fountain Valley Insulation covers North Hollywood and the surrounding San Fernando Valley communities. If you’re in Studio City, CA, Universal City, CA, Burbank, CA, or Valley Glen, CA, we handle insulation work there too with the same brand lineup and retrofit expertise.
Serving North Hollywood, CA — Our Local Coverage Area
We’re based in the North 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 North Hollywood
Most insulation retrofits in North Hollywood don’t require a building permit because they’re classified as maintenance or minor alterations, but installing new insulation as part of an ADU conversion or major remodel usually falls under the broader permit for that project. We’ll flag anything that needs City of LA approval before work starts.
We schedule most North Hollywood attic assessments within the same week, and emergency calls for exposed or damaged insulation can often be handled faster. Summer is our busiest season in the Valley, so calling before the first heat wave gets you a better choice of dates.
Yes. We service 91611, 91612, 91615, and 91616, including the NoHo Arts District, Valley Village, and the neighborhoods south of Burbank Boulevard. Call (833) 390-3099 to confirm your street is in our standard service area and get a free estimate.
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 the hour.
- 4You approve before work beginsNothing starts until you say go.
What North Hollywood Customers Say
"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."
— Carmen Reyes"Installed baffles at the soffits so the new insulation didn't block the ventilation, which the previous contractor apparently never considered."
— Hector Vargas"Plastic laid from the front door to the attic hatch and they vacuumed the hallway afterward."
— David Tran