Insulation Company in North Hills — Same-Day Service, Done Right the First Time

Insulation Company in North Hills, CA

Blown in insulation solves the single most common comfort problem we find in North Hills homes: attics that bake at 150°F all summer and transfer that heat straight down through the ceiling. Most of the houses here were built between the 1950s and 1970s, and the original insulation in their attics is either compressed to a fraction of its rated R-value, missing in patches, or torn up by roof rats and Argentine ants. We carry eight insulation brands including Knauf, Rockwool, CertainTeed, and Icynene, which means we match the material to the home instead of pushing one product on every job. Call (866) 361-3775 when you’re ready for a free estimate.

Call (866) 361-3775

Why North Hills Homes Are Different

North Hills sits in the heart of the San Fernando Valley, and the summers here punish attics. Temperatures inside an under-insulated attic routinely break 150°F in July and August, which turns the ceiling below into a radiant heat panel even when the air conditioner is running. That’s why insulation work in North Hills is fundamentally about heat rejection and radiant-barrier performance, not cold-weather R-value like you’d prioritize in the Midwest. The housing stock reinforces this: these are overwhelmingly 1950s through 1970s single-story tract homes and small apartment buildings with low-pitch roofs and exposed ductwork running through the attic. If the ducts sit in a 150-degree attic, the cooled air inside them warms up before it reaches the registers. Air-sealing and insulation go together on nearly every job we do in the 91343 and 91393 ZIP codes. And because Santa Ana winds push wildfire smoke and embers through the valley floor, many North Hills homeowners are upgrading to sealed, non-combustible insulation assemblies that hold up better during ember-intrusion events. A lot of what we do here is rewriting the mistakes of mid-century construction to meet modern Title 24 energy standards.

Our Main North Hills Services

Two jobs dominate our schedule in North Hills: attic insulation retrofits on original mid-century homes, and spray foam upgrades where homeowners want air-sealing and thermal control in one pass.

Attic Insulation in North Hills

Most North Hills attics we open have the original fiberglass batts or 1960s-era rock wool sitting between the joists, compressed flat and full of dust. Compression kills R-value: a 6-inch batt smashed to 3 inches performs like it’s 3 inches. We remove the old material, air-seal the attic floor, and install a proper depth of new insulation matched to the home’s structure. Because low-pitch roofs make deep attics rare in this neighborhood, we often spec high-performance materials that deliver more R-value per inch. Read more about Attic Insulation in North Hills.

Spray Foam Insulation in North Hills

Spray foam answers two North Hills problems at once: heat gain and air leakage. Open-cell Icynene or Demilec foam expands into the roofline or attic floor and creates an air seal that fiberglass alone cannot match. That matters in a valley where 150-degree attics and Santa Ana wind events push embers and ash into vented roof cavities. Sealed spray foam assemblies also keep rodent access down, which is a genuine concern in North Hills attics. Learn more about Spray Foam Insulation in North Hills.

Blown In Insulation in North Hills

Blown in insulation is usually the fastest way to fix an under-insulated North Hills attic, and it’s the service we recommend most often for homes built before 1980. Loose-fill material settles into every corner of an attic floor, covering the gaps and voids that batts leave behind, and it goes in fast with minimal disruption. We blow in cellulose from Blown In Insulation methods and fiberglass from Knauf, Rockwool, CertainTeed, and depending on the job, choose the material based on the home’s specific conditions: existing moisture levels, attic access, and whether the homeowner prefers recycled content or added fire resistance. In North Hills specifically, blown in work often follows rodent remediation because the existing material has been tunneled through or contaminated.

Cellulose Insulation

Signs you need it

Your attic insulation measures under 6 inches deep, you feel ceiling heat radiating down in summer, or the old fiberglass has been flattened by storage and foot traffic.

What it costs in North Hills

Blown in cellulose in a typical North Hills attic runs $1,200 to $2,600 depending on square footage and target depth.

How we do it

We air-seal the attic floor, then blow GreenFiber or Knauf cellulose to a uniform depth that meets or exceeds current Title 24 minimums.

Blown In Attic Insulation

Signs you need it

Rooms below the attic run 8 to 12 degrees warmer than the rest of the house in summer, or your AC runs constantly while the upstairs stays hot.

What it costs in North Hills

Most blown in attic jobs in North Hills land between $1,500 and $3,000 for a typical 1,200 to 1,600 square foot single-story home.

How we do it

We clear the attic floor, seal recessed light housings and top plates, then blow loose-fill material to the R-value you approved on the estimate.

Blown In Cellulose Insulation

Signs you need it

You want higher recycled-content insulation and your existing attic material is settled, sparse, or was chewed through by roof rats.

What it costs in North Hills

Blown in cellulose runs $1.10 to $2.00 per square foot installed in North Hills attics, including air-sealing prep.

How we do it

We run a hose to the attic, calibrate the machine for the target density, and blow GreenFiber or CertainTeed cellulose evenly across the full attic floor.

Loose Fill Insulation

Signs you need it

Your existing batts have gaps at the eaves, around can lights, and over partition walls, leaving uneven coverage across the attic.

What it costs in North Hills

Loose fill insulation in North Hills typically runs $1.25 to $2.50 per square foot depending on material, depth, and attic accessibility.

How we do it

We blow loose fill to a consistent depth using depth markers so every part of the attic floor reaches the same R-value, including the hard-to-reach perimeter.

What Blown In Insulation Costs in North Hills

How long does blown in insulation last in a North Hills attic?

Cellulose and fiberglass loose fill hold their R-value for 20 to 30 years when installed dry and kept free of rodents. Compression from storage or repeated foot traffic reduces depth, so we check depth on every visit.

Do you have to remove old insulation before blowing in new material?

In North Hills, often yes. Original insulation here is frequently contaminated by roof rat droppings, Argentine ant nests, or decades of dust. We remove compromised material, sanitize the attic floor, and then blow in fresh insulation to the full target depth.

Brands We Service in North Hills

We install Knauf and CertainTeed loose-fill fiberglass, Rockwool mineral wool for fire-rated and sound-dampening applications, and Icynene spray foam for sealed attic assemblies. Parts and materials are stocked locally for quick turnout across North Hills. See the full list on our brands page.

Pricing for Insulation Company in North Hills, CA

Neighborhoods We Serve in North Hills

We work throughout the 91343 and 91393 ZIP codes and know the tract layouts, roof pitches, and attic quirks of each pocket. Typical response time for an estimate in North Hills is same week, and emergency attic inspections can often be scheduled next day.

• North Hills West
• North Hills East
• Sepulveda corridor neighborhoods
• Haskell Creek area
• Rayen Street tract homes

Service Area – Cities Near North Hills

Warm House Insulation Co serves the surrounding San Fernando Valley communities for the same attic, spray foam, and blown in work we do in North Hills. We regularly take on jobs in Northridge, CA, Van Nuys, CA, Valley Glen, CA, and San Fernando, CA.

FAQs About Insulation Company in North Hills