Insulation Company in North Hills, CA
Blown in insulation is the most common retrofit we handle in North Hills, and for good reason: most homes here were built in the 1950s and 60s with shallow attics, 2×4 walls, and original insulation that has settled to a fraction of its rated R-value. Summers in this part of the San Fernando Valley routinely push attic temperatures past 150°F, and that heat seeps straight into living spaces. Fountain Valley Insulation matches the material to your home, not the other way around. Call us at (833) 390-3099 for a free estimate on blown-in, attic, or spray foam work in the 91343 and 91393 ZIP codes.
Why North Hills Homes Are Different
North Hills sits in the inland San Fernando Valley, which means the big insulation problem is summer heat gain rather than winter cold. Most of the 91343 stock is single-story stucco-over-wood-frame tract housing from the Eisenhower and Kennedy years. These homes went up fast, and builders spent almost nothing on insulation. Many still have the original kraft-faced rock wool batts, now collapsed to about 3 inches of ineffective material, or bare cavities with nothing at all. Some older properties have plaster walls instead of drywall, which changes how we approach dense-pack wall blows because plaster is less forgiving than gypsum board.
There is also a large rent-controlled apartment corridor along Sepulveda Blvd, so insulation work in North Hills splits cleanly between owner-occupied tract retrofits and landlord-driven multifamily surveys. Landlords typically ask us to verify attic R-values across every unit before budgeting, while homeowners want one room fixed because it is 15 degrees hotter than the rest of the house.
One thing our technicians always check on North Hills jobs: the original vent slots in these 1950s attics are sized for almost no insulation. Bringing them up to Title 24 R-values usually means re-sizing attic vent area and baffling the eaves before we blow in a single inch of new material. Skip that step and you get trapped heat, moisture problems, and insulation that underperforms.
Our Main North Hills Services
Most North Hills homeowners reach out about two things: attic insulation and spray foam. Here is how each one works in this neighborhood.
Attic Insulation in North Hills
North Hills attics are shallow, vented, and brutally hot for five months of the year. The original insulation in most of these homes has settled down to R-5 or R-8 at most, and current Title 24 recommendations for the Valley call for much more. We inspect the existing material, check vent sizing, and then recommend either blown-in cellulose or fiberglass batts depending on attic access and condition. The 1950s vent slots almost always need baffling first. For a full breakdown of attic jobs in the 91343 and 91393 ZIP codes, see Attic Insulation in North Hills.
Spray Foam Insulation in North Hills
Spray foam is a strong fit for North Hills homes with converted garages, bonus rooms, and those awkward flat sections of Valley rooflines that batts never seal well. Closed-cell foam adds both R-value and structural rigidity, which matters in a seismic zone with older framing. Open-cell foam is a budget-friendly way to air-seal vented attics without the full closed-cell price. We install Icynene and Demilec products, two names most general contractors in this area do not even carry. For details on the closed-cell vs. open-cell decision for your home, visit Spray Foam Insulation in North Hills.
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 Hills
Blown in insulation is usually the fastest, most cost-effective way to fix the heat problem in a North Hills tract home. Most 1950s and 60s houses here still have collapsed 3-inch rock wool or nothing at all in the attic, and the difference after a proper blow-in job is immediate: the air conditioner stops running every 20 minutes, and the back bedrooms finally match the rest of the house. We install Blown In Insulation across both the 91343 and 91393 ZIP codes, matching the material to each attic rather than pushing one product on every job.
Cellulose Insulation
Signs you need it
Your attic insulation looks like dirty gray confetti that has settled into a thin, uneven layer, and upstairs rooms get hot by mid-morning in a North Hills summer.
What it costs in North Hills
Blown-in cellulose in North Hills typically runs $1.20 to $2.20 per square foot, so a standard 1,200-square-foot attic lands between $1,450 and $2,650, depending on depth and whether we are topping off existing material or starting from bare decking.
How we do it
We baffle the eaves and check vent sizing first, then blow the cellulose to the target R-value in a single pass, keeping the machine outside and the mess contained.
Blown In Fiberglass Insulation
Signs you need it
You want the same air-sealing and coverage benefits as cellulose but prefer a material that is lighter per inch and less attractive to Valley rodents nesting in attic cavities.
What it costs in North Hills
Blown-in fiberglass in North Hills runs $0.90 to $1.80 per square foot, so a typical 1,200-square-foot attic job lands between $1,100 and $2,150 for the insulation portion.
How we do it
We prep the attic the same way, then use a calibrated machine to lay down an even, fluffy blanket of fiberglass at the specified R-value, keeping the material loose rather than compacted.
What Blown In Insulation Costs in North Hills
| Item | Typical range in North Hills |
|---|---|
| Blown-in cellulose | $1.20 – $2.20 per sq ft |
| Blown-in fiberglass | $0.90 – $1.80 per sq ft |
| Loose fill (attic, full depth) | $1,100 – $2,650 depending on square footage |
How long does blown-in insulation take in North Hills?
Most North Hills attic blow-ins are done in one day. Larger homes or jobs that need vent re-sizing can run into a second day, but we will tell you the schedule before we start.
Is blown-in insulation enough for a North Hills summer?
Yes, when it is installed to the right R-value and the attic vents are addressed first. Without proper venting, no material will perform the way it should in 150°F attic air.
Brands We Service in North Hills
We carry CertainTeed blown-in products, Icynene and Demilec spray foam, and GreenFiber cellulose for homeowners who want recycled-content material. Our installers know which brand fits which North Hills attic, and most materials are available within a few days. Learn more about our brands.
Pricing for Insulation Company in North Hills, CA
| Service | Typical range in North Hills |
|---|---|
| Blown-in cellulose (attic) | $1.20 – $2.20 per sq ft |
| Blown-in fiberglass (attic) | $0.90 – $1.80 per sq ft |
| Loose fill insulation (attic) | $1,100 – $2,650 per project |
| Dense-pack cellulose (walls) | $1.50 – $2.80 per sq ft of wall area |
| Attic batt insulation | $1.00 – $2.00 per sq ft installed |
| Closed-cell spray foam | $3.50 – $6.50 per sq ft |
| Open-cell spray foam | $1.25 – $2.50 per sq ft |
| Air sealing (attic floor) | $500 – $1,200 per project |
Prices in North Hills climb when attics have plaster ceilings, when original vent slots need re-sizing, or when an older multifamily building requires multiple access points. We quote upfront and the number we give you is the number you pay.
Neighborhoods We Serve in North Hills
We work throughout the 91343 and 91393 ZIP codes, from the tract homes east of Sepulveda Blvd to the multifamily corridors along it. We are familiar with the original 1950s layouts and the venting quirks that come with them.
- Sepulveda Blvd corridor apartments
- Tract streets east of Woodley Ave
- Residential blocks south of Lassen St
- Streets north of Roscoe Blvd
- 91393 subdivisions near the 405
We can usually schedule a North Hills visit within a few days, and same-week installs are common during the cooler months.
Service Area – Cities Near North Hills
Fountain Valley Insulation serves North Hills and the surrounding San Fernando Valley communities. If you are in Northridge, CA, Van Nuys, CA, Valley Glen, CA, or San Fernando, CA, we can schedule an estimate and often start within the same week. Call (833) 390-3099 to confirm service in your neighborhood.
Serving North Hills, CA — Our Local Coverage Area
We’re based in the North Hills 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 Hills
We usually schedule an estimate within a few days, and installation often happens within the same week. During spring and fall, the schedule opens up faster. Call (833) 390-3099 and we will give you a specific date for your neighborhood.
Most retrofit insulation in single-family homes does not require a permit in unincorporated Los Angeles County, though some multifamily buildings have their own requirements. We can check the specifics for your property before scheduling.
Yes. We work on owner-occupied homes and landlord-driven multifamily surveys, including rent-controlled buildings along Sepulveda Blvd. The approach differs by building type, but we quote both the same way: upfront and itemized.
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 Hills Customers Say
"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"Attic was at maybe R-11 from the 1970s and blown in over the top would have just buried the problem. They removed the old material, air sealed the top plates and penetrations first, then blew in to R-49. The upstairs is a completely different house in August."
— Justin Chen