Insulation Company in Van Nuys, CA
Blown in insulation is the retrofit that makes the most sense for most Van Nuys homes, especially the 1940s and 1950s ranch houses that line the flat streets west of Van Nuys Blvd. Those attics were built for a different climate than the one we actually have here in the San Fernando Valley. When it’s 104°F in July, a shallow attic with thin or missing insulation turns the space below it into an oven. Fountain Valley Insulation has served Van Nuys since 2014, and we match the material to your home, not the other way around. Call (833) 390-3099 for a free attic assessment.
Why Van Nuys Homes Are Different
Van Nuys wasn’t designed for 100-degree summers. Most of the single-story tract and ranch homes between Victory Blvd and Sherman Way went up in the 1940s through the 1960s, a period when builders treated attic insulation as an afterthought. Many of those attics still hold the original thin batts, if they hold anything at all. The low-pitch roofs leave less attic space to work in than a newer two-story home in Northridge or Porter Ranch would have.
What we routinely find in Van Nuys attics is knob-and-tube wiring running exactly where blown insulation needs to go. That’s a complication, not a dealbreaker, but it means the job has to start with air sealing and wiring checks, not with filling the space. The intense afternoon sun on west-facing roof planes pushes attic temperatures to 140°F or higher in summer. That’s the number that matters when you’re deciding between R-value upgrades, a radiant barrier, or both. The dry valley climate works in your favor here. We don’t deal with the crawlspace moisture problems that coastal contractors in Santa Monica or Long Beach fight constantly. Our focus is heat load, and in Van Nuys that’s the whole game.
Our Main Van Nuys Services
The two services Van Nuys homeowners call about most are attic insulation upgrades and spray foam, and for good reason: our housing stock has shallow, vented attics that bake in the summer, while additions and garage conversions often need the air-sealing power only spray foam can deliver.
Attic Insulation in Van Nuys
Most Van Nuys ranch homes have vented attics with blown-in fiberglass or old batts that settled decades ago. Upgrading means adding R-value where the heat actually enters, which usually means the attic floor plane. We check existing depth, look for gaps around can lights and plumbing penetrations, and determine whether your wiring situation changes the plan. For homes in the 91470 and 91499 ZIPs near the 405, west-facing roof planes take the worst of the afternoon sun, so a radiant barrier often pays for itself faster than extra inches of insulation. See our full breakdown on the Attic Insulation in Van Nuys page.
Spray Foam Insulation in Van Nuys
Spray foam earns its cost in Van Nuys when the project involves a converted garage, a flat or low-slope roof, or a room that has never stopped being hot no matter what you do. Closed-cell foam air seals and insulates in one step, which matters in older framing where air leaks are the real problem, not missing batts. We install Icynene and Demilec products, which are two of the most recognized names in the spray foam category. If you’re planning a room addition or finally tackling that unpermitted garage conversion from the 70s, this is the service to understand. Details are on the Spray Foam Insulation in Van Nuys 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 Van Nuys
Blown in insulation is the most practical retrofit for the shallow, vented attics that dominate Van Nuys. The 1940s through 1960s tract homes here were built when energy was cheap and summers were just something you opened a window for. That’s no longer the case. We blow loose fill insulation across the attic floor, filling around framing, wiring, and obstructions in a way that batt insulation simply cannot. It’s faster, denser, and reaches the corners that hand-cut batts always miss. For a deeper look at the method itself, see our Blown In Insulation page.
Cellulose Insulation
Signs you need it
Your attic has old, settled fiberglass or nothing more than a few inches of original rock wool, and your upstairs rooms swing 10-15°F hotter than the rest of the house by late afternoon.
What it costs in Van Nuys
Blown-in cellulose insulation in Van Nuys typically runs $1,800 – $3,600 for a standard 1,200 – 1,800 sq ft attic, depending on target R-value and existing depth.
How we do it
We check for wiring and air leaks first, then blow GreenFiber or equivalent recycled-content cellulose to the specified depth, density-checked to ensure the R-value actually holds.
Blown In Fiberglass Insulation
Signs you need it
Your existing insulation is original to the house, has compacted to half its original thickness, or you’re replacing insulation after a roof repair or rodent problem.
What it costs in Van Nuys
Blown-in fiberglass in Van Nuys typically lands between $1,200 and $2,800 for a standard attic, depending on depth and accessibility.
How we do it
We set target depth markers, blow Owens Corning or Johns Manville loose-fill fiberglass to an even, measured depth, and leave the attic clean enough to walk through.
What Blown In Insulation Costs in Van Nuys
| Item | Typical range in Van Nuys |
|---|---|
| Blown-in fiberglass insulation (1,200 – 1,800 sq ft attic) | $1,200 – $2,800 |
| Blown-in cellulose insulation (1,200 – 1,800 sq ft attic) | $1,800 – $3,600 |
| Air sealing before blow-in (typical ranch attic) | $400 – $1,200 |
Is blown in insulation worth it in Van Nuys?
Yes. When summer attic temperatures hit 140°F, going from R-11 to R-38 in a vented attic cuts heat transfer enough that most homeowners report cooler second stories and lower AC run times within the first summer.
Can you blow insulation over old insulation in Van Nuys?
Usually yes, as long as the old insulation is dry and there’s no knob-and-tube wiring in the attic. We assess the existing material, air seal first, then blow new insulation to the full target depth. Call (833) 390-3099 for an attic check.
Brands We Service in Van Nuys
We’re not tied to one manufacturer’s product line, and that matters in Van Nuys where different roof pitches and wiring conditions call for different materials. Our installers work regularly with Owens Corning and Johns Manville fiberglass, GreenFiber recycled cellulose, and Icynene and Demilec spray foam. Parts and materials are staged locally, which keeps most Van Nuys attic projects to a one-day install. See our brands for the full lineup.
Pricing for Insulation Company in Van Nuys, CA
| Service | Typical range in Van Nuys |
|---|---|
| Blown-in fiberglass insulation (standard attic) | $1,200 – $2,800 |
| Blown-in cellulose insulation (standard attic) | $1,800 – $3,600 |
| Attic air sealing (typical ranch attic) | $400 – $1,200 |
| Radiant barrier installation | $1,000 – $2,500 |
| Attic insulation removal (old or damaged material) | $800 – $2,000 |
| Spray foam insulation (open-cell, per sq ft) | $1.80 – $3.50 |
| Spray foam insulation (closed-cell, per sq ft) | $2.50 – $5.00 |
| Attic insulation upgrade to R-38 (blown-in) | $1,500 – $3,400 |
What pushes the price up in Van Nuys is usually access: a 1940s house with a small scuttle hole, shallow roof pitch, and knob-and-tube wiring takes more time to prep safely than a newer attic with a proper access ladder. You’ll get an upfront number before we start, never an estimate that changes after the truck shows up.
Neighborhoods We Serve in Van Nuys
We work across Van Nuys, from the older ranch blocks near Victory Blvd to the mid-century apartments along Van Nuys Blvd and the quieter streets west toward the 405. Our crews cover all four Van Nuys ZIP codes: 91470, 91482, 91496, and 91499. Most attic insulation and blow-in jobs are completed same-day, with larger spray foam projects running two days depending on scope.
- Van Nuys Blvd corridor (mid-century apartments and condos)
- Victory Blvd area (1940s-50s ranch homes)
- Sepulveda Basin adjacent blocks (91470)
- West Van Nuys near the 405 (91496 and 91499)
- North Van Nuys near Sherman Way (91482)
Service Area – Cities Near Van Nuys
Fountain Valley Insulation serves homeowners across the central San Fernando Valley and surrounding areas. If you’re in Valley Glen, CA, we handle the same 1950s ranch retrofits we see in Van Nuys. For homes in Sherman Oaks, CA or Encino, CA, we cover the larger lot homes and newer additions along the Boulevard. And if you’re in North Hills, CA, we’re a short drive from your neighborhood.
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
In most cases, no. Adding blown-in insulation to an existing attic is not a permit-required scope under Los Angeles building code. The exception is spray foam in new construction or a room addition, where the general contractor’s permit covers the insulation work. We’ll flag it if your project falls into that category.
Most attic assessments can be scheduled within a few business days, and we routinely book same-week installs for blown-in insulation during the fall and winter months. Summer is the busiest season in Van Nuys, so if you’re calling in July or August, plan for a slightly longer lead time. Call (833) 390-3099 to check current scheduling.
Yes. We check for knob-and-tube before any blow-in job, because covering live knob-and-tube wiring with insulation creates a fire hazard. If it’s present, we recommend wiring remediation first, then proceed with insulation. Many Van Nuys homes from the 1940s still have at least some original wiring, so this is a standard part of our assessment.
Fountain Valley Insulation installs blown-in insulation, attic insulation, and spray foam across Van Nuys. We carry eight trusted brands and three proven methods, and we’ll tell you which one actually fits your situation. Call (833) 390-3099 for 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 Van Nuys 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