Insulation Company in North Hills, CA
Blown in insulation is the most common retrofit we install in North Hills, and for good reason: the 1950s and 60s ranch homes that dominate 91343 and 91393 were built when attic insulation meant a thin layer of fiberglass batts that has long since settled, compressed, or simply disappeared under decades of Valley heat. Most North Hills attics we inspect sit at R-11 or worse, which means air conditioning dollars leak straight through the ceiling from June through October. East Los Angeles Insulation Co has served North Hills since 2018, and our crew knows exactly what these homes need: a proper air seal, a deep even layer of blown in cellulose or fiberglass, and an honest assessment of whether your attic needs more than a top-off. Call (866) 566-0304 to schedule a free estimate.
Why North Hills Homes Are Different
North Hills sits in the San Fernando Valley’s hottest inner belt, where summer highs routinely push past 100°F and afternoon sun hammers west and south facing roof planes for hours. The housing stock here tells a clear story: mid-century ranch tract homes built during the 1950s and 60s subdivision buildout around Sepulveda and Nordhoff, most with stucco exteriors, low-pitch roofs, attached garages, and accessible attics that still carry original R-11-ish batts or bare attic floors. The retrofit opportunity, not new construction, is the whole business in North Hills.
What we find in 91343 attics is remarkably consistent. The old batts have baked flat under years of heat cycling, losing their loft and their R-value. Blown in insulation that was added decades ago has settled well below the joists. Soffit vents are clogged with Valley dust and dry leaf debris, which means the attic never breathes properly and becomes an oven that radiates heat down into living spaces all afternoon. The fix is almost always the same: air-seal the attic floor, re-level or remove the degraded material, and blow in a fresh even layer to bring the assembly up to R-38 or better for this climate zone. Homes along the Sepulveda and Van Nuys corridors include a smaller share of newer infill and multi-family buildings, but the overwhelming majority of our North Hills work is bringing that aging original stock up to modern thermal performance.
Our Main North Hills Services
North Hills homeowners call us most often about two insulation projects: attic retrofits on aging ranch homes, and spray foam applications where air sealing matters as much as R-value. Both services are covered in depth below.
Attic Insulation in North Hills
An attic insulation job in North Hills starts with diagnosis, not just a quote. We inspect the existing batts or blown in material, check for settled areas below the joists, look for gaps around can lights, plumbing vents, and the attic hatch, and verify that soffit vents are actually moving air. On most 1950s and 60s ranch homes here, the original insulation is doing almost nothing, and the attic is the single biggest source of heat gain in summer. We remove or re-level what’s there, air-seal the attic floor, and install fresh material matched to the home’s specific conditions. For the full breakdown of options and pricing specific to North Hills, see our Attic Insulation in North Hills page.
Spray Foam Insulation in North Hills
Spray foam solves a different problem in North Hills than blown in. Where blown in attic insulation slows conductive heat transfer, closed cell foam also air-seals, which matters enormously in older Valley homes where the attic floor is riddled with unsealed penetrations and the wall cavities were never insulated at all. We install open and closed cell systems from Icynene and Demilec, two brands with established field performance records, and the closed cell option adds structural racking strength that mid-century stucco homes sometimes lack. For existing walls, attics, and hard to reach cavities, the application is precise and fast. Read the specifics on our Spray Foam Insulation in North Hills page.
Blown In Insulation in North Hills
Blown in insulation is the workhorse retrofit for North Hills ranch homes, and it’s what we recommend most often when a homeowner calls about high summer bills and rooms that never cool down. The typical 91343 attic from the 1950s or 60s has either bare floor areas, original batts that have compressed to a fraction of their rated R-value, or old blown in material that has settled inches below the joist tops. In every case, the solution is the same: seal the attic floor, then blow in a deep, even layer of cellulose or fiberglass to bring the assembly up to R-38 or R-49. This is our primary service in North Hills, and we treat it as a specialty, not an add-on. You can read more about the full service on our Blown In Insulation hub page.
Cellulose Insulation
Signs you need it
Your North Hills attic has old fiberglass batts that are thin, dirty, and compressed, or you can see the joist tops through the existing blown in material.
What it costs in North Hills
Blown in cellulose attic insulation in North Hills typically runs $1.20 to $2.50 per square foot installed, depending on depth and prep work.
How we do it
We air-seal the attic floor, then blow GreenFiber cellulose to a uniform depth that hits R-38 or R-49 in one pass, leaving no bare spots or thin areas.
Blown In Attic Insulation
Signs you need it
Your upstairs rooms are 10 to 15 degrees hotter than the rest of the house in summer, or your attic has settled insulation that sits below the joist tops.
What it costs in North Hills
A full blown in attic insulation job in North Hills, including air sealing and removal of degraded material, typically falls between $1.50 and $3.50 per square foot.
How we do it
We remove or re-level the old material, seal all penetrations and the attic hatch, then blow Owens Corning fiberglass or GreenFiber cellulose to a consistent verified depth.
Blown In Fiberglass Insulation
Signs you need it
You want a clean, non-settling insulation in an accessible attic where the existing batts are thin, dirty, or missing in spots.
What it costs in North Hills
Blown in fiberglass insulation in a North Hills attic runs $1.50 to $3.00 per square foot installed, with final price set by target R-value and attic access.
How we do it
We prep the attic by air-sealing, then blow loose fill fiberglass to the required depth, checking density as we go so the finished layer hits spec everywhere.
Loose Fill Insulation
Signs you need it
Your attic has deep settled areas, bare patches around the edges, or baffles that have fallen away, leaving ventilation gaps that let hot air pour in.
What it costs in North Hills
Loose fill insulation work in North Hills, including re-leveling existing material and topping off to R-49, runs $1.20 to $2.50 per square foot.
How we do it
We install or repair soffit baffles, re-level the existing loose fill, air-seal the attic floor, and blow new material to a consistent depth across the whole attic.
What Blown In Insulation Costs in North Hills
| Item | Typical range in North Hills |
|---|---|
| Blown in cellulose attic insulation (R-38) | $1.50 – $2.50 per sq ft |
| Blown in fiberglass attic insulation (R-49) | $2.00 – $3.00 per sq ft |
| Air sealing + blown in insulation package | $2.50 – $3.50 per sq ft |
Is blown in insulation worth it in North Hills?
Yes, almost always. Most 91343 homes built in the 1950s and 60s have R-11 or less in the attic, and bringing that up to R-38 or R-49 cuts summer cooling loads dramatically. The attic is the single biggest source of heat gain in these ranch homes.
Can you blow insulation over old batts in North Hills?
In many cases, yes, but only after we inspect the condition of the batt. If it’s compressed, dirty, or mouse-damaged, blowing over it just buries a problem. We usually recommend removing or re-leveling first, then blowing fresh material on top.
Brands We Service in North Hills
We stock and install Icynene, Demilec, GreenFiber, and Owens Corning products in North Hills, plus Johns Manville, Knauf, Rockwool, and CertainTeed. Having all eight brands in our inventory means we match the product to the home, not the other way around. Turnaround on most North Hills orders is same-week. See our full brand lineup on our brands page.
Pricing for Insulation Company in North Hills, CA
| Service | Typical range in North Hills |
|---|---|
| Blown in cellulose attic insulation | $1.50 – $2.50 per sq ft |
| Blown in fiberglass attic insulation | $2.00 – $3.00 per sq ft |
| Loose fill insulation (re-level + top-off) | $1.20 – $2.50 per sq ft |
| Air sealing + blown in insulation package | $2.50 – $3.50 per sq ft |
| Attic insulation (full retrofit) | $2.50 – $4.50 per sq ft |
| Spray foam insulation (open cell) | $2.50 – $4.50 per sq ft |
| Spray foam insulation (closed cell) | $3.50 – $6.50 per sq ft |
What pushes a North Hills job higher is almost always attic access and prep work: tight hatches, old vermiculite that needs testing, or decades of dust and debris that has to be cleared before we can air-seal properly. We give every North Hills homeowner an upfront written quote before any work begins, and the number we quote is the number you pay.
Neighborhoods We Serve in North Hills
Our crews cover the full 91343 and 91393 service area, including the mid-century ranch pockets east of Sepulveda, the streets off Nordhoff and Plummer, and the newer infill along the Van Nuys corridor. We typically reach any North Hills address same-day for an estimate, and most insulation jobs are completed in one day.
- Sepulveda corridor
- Nordhoff area
- Plummer Street corridor
- North Hills West
- Van Nuys adjacent blocks
Service Area – Cities Near North Hills
East Los Angeles Insulation Co covers the surrounding San Fernando Valley communities with the same upfront pricing and single-day installation standard. If you’re in Northridge, CA, Van Nuys, CA, Valley Glen, CA, or San Fernando, CA, we can reach you just as fast and with the same eight brand inventory.
Serving North Hills, CA - Our Local Coverage Area
We serve North Hills and nearby communities. Use the map below to see the area we cover. If you’re nearby, we can almost certainly help.
FAQs About Insulation Company in North Hills
We schedule North Hills estimates same-day or next-day in most cases, and once you approve the quote, installation is usually within the same week. Smaller blown in attic jobs are often done in a single day, while full spray foam and air sealing work can take two to three days depending on the home’s size.
Most blown in and attic insulation retrofits in North Hills do not require a building permit because they’re considered maintenance work on an existing home. Spray foam in certain applications, like converting a vented attic to an unvented assembly, may need plan check approval. We’ll tell you upfront if your project falls into that category.
For most 91343 ranch homes with accessible attics, blown in insulation is the more cost effective first step and solves the biggest problem: heat radiating down from a hot attic. Spray foam earns its higher price when you’re finishing an attic, insulating a flat roof, or need air sealing in walls that were never insulated. We’ll inspect and recommend based on your specific home, not a product we’re trying to move.
Call (866) 566-0304 to schedule your free North Hills insulation estimate. We’ll inspect your attic, explain exactly what’s there now, and give you a written quote for the right fix, whether that’s blown in, spray foam, or a full attic retrofit.
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.
- 3We come out and measureLicensed & insured, at a time that suits you. The visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What North Hills Customers Say
"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."
- Jason Walsh"Handled the utility rebate paperwork, which knocked a real amount off the final cost."
- Rosa Martinez"Plastic laid from the front door to the attic hatch and they vacuumed the hallway afterward."
- Diego Castillo