Insulation Company in Van Nuys, CA
Blown in insulation is the most common retrofit we perform in Van Nuys, and for good reason: most of the homes here were built between the 1940s and 1960s, and their original batt insulation has settled, compressed, or simply given up under decades of San Fernando Valley heat. Van Nuys summers routinely push attic temperatures past 140°F, and when your attic insulation is thin or patchy, that heat bleeds straight into your living space. We match the material to your home, not the other way around. Call North Tustin Insulation at (877) 265-5712 for a free estimate.
Why Van Nuys Homes Are Different
Van Nuys sits in the heart of the San Fernando Valley, where summer temperatures run 10 to 15 degrees hotter than coastal LA. That means insulation work here is less about trapping heat in winter and more about stopping radiant heat gain from a sun-blasted roof deck. The housing stock tells the story: dense tracts of 1940s and 1950s single-story ranch homes, plus a large inventory of 1960s and 1970s low-rise apartment buildings along Van Nuys Blvd and Victory Blvd. Many still have their original batt insulation, and a lot of them also have knob-and-tube wiring in the attic, which complicates any retrofit that involves loose fill or spray foam around electrical.
In the older ranch homes near Van Nuys Airport, we regularly find attic insulation compressed to half its original thickness and blackened by heat, with a fine layer of dust from the Sepulveda Basin and the 405 corridor settled on top. That combination means we often vacuum out the old material and re-insulate from scratch rather than just topping off. The dry heat also makes attic ventilation a bigger deal here than in coastal neighborhoods. A well-insulated but poorly ventilated attic in Van Nuys will still cook your ceilings.
Our Main Van Nuys Services
Van Nuys homeowners call us most often about two things: upgrading attic insulation in older ranch homes, and sealing the building envelope with spray foam. Here is how each one works in this part of the Valley.
Attic Insulation in Van Nuys
Attic insulation in Van Nuys usually means working around original 1950s and 1960s construction, settled fiberglass, and sometimes knob-and-tube wiring that needs to be handled carefully. We inspect the existing depth, check for compressed or heat-damaged material, and recommend either a full removal and re-insulation or a targeted top-off depending on what we find. In unvented attics, which are common in older Van Nuys apartment buildings, we address ventilation and air sealing alongside the insulation itself. Learn more about how we handle Attic Insulation in Van Nuys.

Spray Foam Insulation in Van Nuys
Spray foam makes sense in Van Nuys when you need to seal air leaks in addition to insulating. The older stucco tract homes here are notorious for leaky attic hatches, unsealed top plates, and gaps around recessed lights. Open-cell foam does a good job on the attic floor, while closed-cell foam is the right call for knee walls or bonus rooms that get direct sun. Because Van Nuys attics get so hot, we often recommend spray foam paired with a radiant barrier in the worst cases. See how we approach Spray Foam Insulation in Van Nuys.

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 Van Nuys
Blown in insulation is the fastest, most cost-effective way to bring a Van Nuys attic up to modern R-value standards without tearing out drywall. In the 1940s and 1950s ranch homes that dominate this part of the Valley, original batt insulation has usually settled to R-19 or less, and the 100°F-plus summer heat has baked it into something closer to a thermal blanket than a thermal barrier. Blowing in new material over the top, or removing the old and starting fresh, is often a same-day job that changes how the upstairs feels by the next afternoon. We carry GreenFiber cellulose and Owens Corning fiberglass for blown-in applications, and the choice depends on your attic’s condition, your wiring, and your budget. See our full breakdown on the Blown In Insulation service page.
Cellulose Insulation
Signs you need it
Your attic insulation is settled, dusty, or filled with gaps around ceiling joists, and your upstairs rooms run 8 to 10 degrees hotter than the rest of the house in summer.
What it costs in Van Nuys
Blown-in cellulose in Van Nuys typically runs $1.50 to $3.50 per square foot installed, depending on depth and whether we remove the old material first.
How we do it
We air-seal the attic floor, install or verify eave baffles for ventilation, then blow GreenFiber cellulose to the target depth using a calibrated machine for consistent coverage.
Blown In Attic Insulation
Signs you need it
You stand in your hallway on a summer afternoon and feel heat radiating from the ceiling, or your AC runs nonstop from June through September.
What it costs in Van Nuys
Blown-in attic insulation for a typical 1,200-square-foot Van Nuys ranch runs $1,200 to $3,500 total, including prep, installation, and cleanup.
How we do it
We remove or top off the existing material, air-seal penetrations like recessed lights and top plates, and blow the material to the R-value specified for your home.
What Blown In Insulation Costs in Van Nuys
| Item | Typical range in Van Nuys |
|---|---|
| Blown-in cellulose (per sq ft installed) | $1.50 – $3.50 |
| Blown-in fiberglass (per sq ft installed) | $1.20 – $3.00 |
| Full attic for a 1,200 sq ft ranch | $1,200 – $3,500 |
Is blown in insulation worth it in Van Nuys?
Yes. In a climate with 100°F summer days and 140°F attic temperatures, upgrading from settled R-19 to a true R-38 or R-49 typically cuts cooling costs by 15 to 25 percent and makes upstairs rooms noticeably more comfortable. Call (877) 265-5712 for a quote.
Can you blow insulation into an old Van Nuys attic with knob-and-tube wiring?
In most cases, yes, but it requires care. We identify any live knob-and-tube circuits and keep loose fill clear of those areas, which is a code requirement and a fire-safety issue. Call (877) 265-5712 for an inspection.
Brands We Service in Van Nuys
We carry Owens Corning, Johns Manville, and GreenFiber products and keep common material stocked for Van Nuys jobs, which means most installations go in within a week of your estimate. See the full lineup on our brands page.
Pricing for Insulation Company in Van Nuys, CA
| Service | Typical range in Van Nuys |
|---|---|
| Blown-in cellulose (per sq ft) | $1.50 – $3.50 |
| Blown-in fiberglass (per sq ft) | $1.20 – $3.00 |
| Full attic for 1,200 sq ft home | $1,200 – $3,500 |
| Fiberglass batt installation (per sq ft) | $1.00 – $2.50 |
| Fiberglass batt roll-out over existing | $0.80 – $1.50 |
| Mineral wool batts (per sq ft) | $1.50 – $3.50 |
| Spray foam, open-cell (per board ft) | $0.50 – $1.20 |
| Spray foam, closed-cell (per board ft) | $1.00 – $2.50 |
| Air sealing and minor prep (per project) | $300 – $900 |
Prices push higher in Van Nuys when we have to remove heat-damaged or dust-contaminated material, when knob-and-tube wiring requires insulation dams, or when attic access is through a small closet hatch that slows the work. We give you a written, upfront price before any material goes in, so there are no surprises at the end.
Neighborhoods We Serve in Van Nuys
We work throughout Van Nuys and the surrounding Valley neighborhoods, and we schedule jobs six days a week with most estimates completed within two business days. Areas we regularly serve include:
- Van Nuys Airport area
- Valley Glen border
- Victory Blvd corridor
- Sepulveda Basin
- Sherman Oaks border
Service Area – Cities Near Van Nuys
North Tustin Insulation has served Van Nuys since 2011, and our crews also cover the surrounding San Fernando Valley. If you are in Valley Glen, CA, Sherman Oaks, CA, Encino, CA, or North Hills, CA, we can usually schedule your estimate within the same week.
Serving Van Nuys, CA — Our Local Coverage Area
We’re based in the Van Nuys 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 Van Nuys
Most Van Nuys estimates are scheduled within two business days, and installation typically happens within a week after you approve the quote. Blown-in jobs are often done in a single day. Call (877) 265-5712 to check current scheduling.
Most insulation retrofits in Van Nuys do not require a permit, but jobs that involve air sealing, ventilation changes, or work around knob-and-tube wiring sometimes do. We handle the permit process when one is needed, and we can tell you during the estimate whether your job qualifies for an exemption.
Yes. We work on low-rise apartment buildings throughout Van Nuys, including 1960s and 1970s construction along Van Nuys Blvd and Victory Blvd. Those projects often involve shared attic spaces, older wiring, and access challenges, and we quote them on a building-by-building basis. Call (877) 265-5712 for a site visit.
Ready to get your Van Nuys home comfortable and your energy bills down? Call North Tustin Insulation at (877) 265-5712 for a free, no-pressure estimate. We carry the right material for your house, and we will tell you straight what works and what does not.
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 same-day.
- 4You approve before work beginsNothing starts until you say go.
What Van Nuys Customers Say
"Found and sealed a gap around the chimney chase that was basically an open chimney to the attic."
— Gabriela Herrera"Installed baffles at the soffits so the new insulation didn't block the ventilation, which the previous contractor apparently never considered."
— Ryan Rhodes"Spray foam in the rim joists in the basement. The cold floors above them are gone."
— Bethany Ziegler