Insulation Company in Van Nuys, CA
Blown in insulation is the most common retrofit we install in Van Nuys, and for good reason. Most homes here were built between the 1940s and 1960s, when wall cavities were often left empty and attic insulation was barely an afterthought. Add in Valley summers that push past 100°F, and you have rooms that never cool down and AC units that run all afternoon. We’re Comfort Zone Insulation Co, and we fix that by filling the gaps the original builders left behind. Call (855) 341-7856 for a free estimate.
Why Van Nuys Homes Are Different
Van Nuys sits deep in the San Fernando Valley, where the semi-arid climate means long, hot summers with intense solar gain and winters that are cool but mild. The real story here is the housing stock. Much of Van Nuys is composed of single-story tract homes from the 1940s through the 1960s, plus smaller apartment buildings from the same era. These structures went up fast during the postwar boom, and insulation was not a priority. Many original wood-frame walls have no cavity insulation at all. Attics often have a thin layer of fiberglass batts that settled decades ago.
In the older tracts around 91405 and 91406, we regularly find attics where the original batts have been disturbed by years of HVAC replacements, electrical work, and cable installations. The batts get shoved aside, compressed, or torn out entirely, and nobody puts them back. That means the ceiling is essentially uninsulated in spots, and the AC is fighting 130°F attic air all summer. Air sealing is the first move, then insulation. The goal in Van Nuys is almost always about blocking heat gain and reducing AC load, not keeping winter cold out.
Our Main Van Nuys Services
Most Van Nuys homeowners call us about one of two things: the attic above them, or the walls around them. Both are treated as dedicated jobs, not add-ons.
Attic Insulation in Van Nuys
In a Van Nuys tract home, the attic is usually the single highest-impact insulation zone. The sun beats on the roof for eight hours a day, and that heat radiates down into the living space if the attic floor isn’t properly insulated and air-sealed. We start by inspecting what’s already up there: often settled fiberglass, gaps around recessed lights, and open framing cavities from old remodels. Then we re-level, seal, and add new material to bring the whole attic up to a consistent, effective depth. Attic Insulation in Van Nuys is the service we recommend most often for comfort complaints in this zip code.
Spray Foam Insulation in Van Nuys
Spray foam is the right call when a Van Nuys home has hard-to-reach cavities, air leaks that keep defeating batts, or a homeowner who wants air sealing and insulation in one step. We install open-cell and closed-cell systems from Icynene, selected for the specific job rather than whatever’s on the truck. In older Valley homes, spray foam can make a dramatic difference in rooms that share walls with the garage or sit under a flat roof deck. Spray Foam Insulation in Van Nuys is worth considering if you’ve already tried other fixes and still can’t hold temperature.
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 way to retrofit the walls and attics of Van Nuys’s postwar tract homes. Instead of tearing out drywall to fit batts, we can blow material into existing cavities through small access holes, or dense-pack it into open framing. That’s a huge advantage in houses where the interior is finished and the owner doesn’t want a remodel. We carry Blown In Insulation systems from brands like Knauf, CertainTeed, and GreenFiber, so the material gets matched to the job rather than the other way around. In a Van Nuys summer, the difference between an empty wall cavity and a dense-packed one is the difference between an AC that cycles normally and one that never shuts off.
Cellulose Insulation
Signs you need it
Your upstairs or west-facing rooms spike in temperature by mid-afternoon even with the AC running, and the attic has only thin, settled material.
What it costs in Van Nuys
Blown cellulose in Van Nuys typically runs $1.10 to $1.60 per square foot installed, depending on depth and prep work.
How we do it
We remove or re-level disturbed material, air-seal the ceiling plane, then blow recycled-content cellulose to the target depth with a calibrated machine.
Blown In Attic Insulation
Signs you need it
The ceiling below your attic is warm to the touch, your AC runs longer on hot days, or rooms below the attic are noticeably hotter than the rest of the house.
What it costs in Van Nuys
Attic blows in Van Nuys land between $1,500 and $2,800 for a typical 1,000 to 1,500 square foot attic, including basic air sealing.
How we do it
We check the existing batts, seal bypasses around wires and plumbing, then blow loose-fill fiberglass or cellulose to an even depth across the entire attic floor.
Blown In Fiberglass Insulation
Signs you need it
Your existing attic fiberglass batts have settled, been walked on, or pushed aside by tradespeople, leaving bare spots over your ceiling.
What it costs in Van Nuys
Blown fiberglass in Van Nuys runs $0.90 to $1.40 per square foot for attic applications at typical depths.
How we do it
We re-level the old batts where they’re salvageable, then blow new fiberglass over the top until the attic has a consistent, uncompressed layer.
What Blown In Insulation Costs in Van Nuys
| Item | Typical range in Van Nuys |
|---|---|
| Blown-in attic insulation, 1,000 sq ft | $1,500 – $2,800 |
| Blown-in fiberglass, per sq ft | $0.90 – $1.40 |
| Blown-in cellulose, per sq ft | $1.10 – $1.60 |
Wall cavities and dense-pack work are priced per job after we inspect the framing and access points. The size of the access holes and whether we need to drill through stucco or drywall both affect the final number.
Will blown in insulation make a real difference in a Van Nuys summer?
Yes. Filling empty wall cavities and topping up a thin attic cuts heat gain dramatically, which means your AC runs shorter cycles and rooms hold temperature far better. Homes built before 1970 in Van Nuys often see the biggest change because they started with so little insulation.
Call (855) 341-7856 if you want us to check what’s already in your walls and attic – it’s a free estimate and usually takes under an hour.
Can you blow insulation into existing walls without tearing them open?
Yes. We drill small access holes from the outside or inside, blow the material into each stud cavity, then patch the holes. It’s far less invasive than removing drywall, and it’s a common job on Van Nuys tract homes with empty wall cavities.
Call (855) 341-7856 to ask about your specific wall construction – some older Valley homes have blocking or diagonal bracing that changes the approach.
Brands We Service in Van Nuys
We’re authorized to install products from eight manufacturers, and we keep material from Knauf, CertainTeed, Rockwool, and Icynene available for Van Nuys jobs. Most materials are stocked in our local warehouse, so a typical attic or wall retrofit starts within days, not weeks. See our brands for the full list.
Pricing for Insulation Company in Van Nuys, CA
| Service | Typical range in Van Nuys |
|---|---|
| Blown-in attic insulation, 1,000 sq ft | $1,500 – $2,800 |
| Blown-in fiberglass, per sq ft | $0.90 – $1.40 |
| Blown-in cellulose, per sq ft | $1.10 – $1.60 |
| Attic air sealing (basic, before insulation) | $700 – $1,500 |
| Wall cavity dense-pack, per sq ft of wall | $1.80 – $3.00 |
| Attic spray foam, open-cell, per sq ft | $1.50 – $2.75 |
| Attic spray foam, closed-cell, per sq ft | $2.00 – $3.25 |
| Crawl space encapsulation with foam board | $4,000 – $8,000 |
| Soundproofing insulation, per sq ft | $2.50 – $5.00 |
Prices in Van Nuys push upward when attics need extensive air sealing before new material goes in, or when walls have irregular framing that slows the dense-pack process. We give your upfront price before any work starts, so the number we quote is the number on the invoice.
Neighborhoods We Serve in Van Nuys
We work throughout Van Nuys and the surrounding Valley, including the older postwar tracts where insulation issues are most common. Our crews know the housing stock in each area and can usually give you a same-week estimate.
- Van Nuys Central (91405)
- Lake Balboa (91406)
- Valley Glen border (91401)
- Sherman Village (91411)
- Van Nuys Airport area (91406)
Response time for most neighborhoods is same-week for an estimate, with installation typically scheduled within 5 to 10 business days.
Service Area – Cities Near Van Nuys
Comfort Zone Insulation Co serves Van Nuys and the surrounding San Fernando Valley communities. If you’re nearby, you may be in our service area too. We install blown in, spray foam, and attic insulation in Valley Glen, CA, Sherman Oaks, CA, Encino, CA, and North Hills, CA. Call (855) 341-7856 to confirm your address.
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 insulation retrofits in Van Nuys do not require a city permit, since they’re considered maintenance of an existing home rather than new construction. If your project is part of a larger remodel with structural changes, the contractor managing that work typically pulls the permit. We’ll flag any unique situations during your estimate.
We can usually get a technician to your Van Nuys home within the same week you call, often within 48 hours. The estimate visit takes about an hour: we inspect the attic and accessible wall cavities, take measurements, and give you a written price before we leave.
We start in the attic. In most 1940s to 1960s Van Nuys homes, the attic is where the biggest heat gains and the most disturbed insulation live. Settled batts, open bypasses, and gaps around recessed fixtures are usually the culprits. After that we check wall cavities and the crawl space if there is one.
Call (855) 341-7856 to schedule your free estimate, and we’ll walk you through what we find.
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 1-hour.
- 4You approve before work beginsNothing starts until you say go.
What Van Nuys Customers Say
"Plastic laid from the front door to the attic hatch and they vacuumed the hallway afterward."
— Vivian Kim"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."
— Dustin Sullivan"Handled the utility rebate paperwork, which knocked a real amount off the final cost."
— Marco Morales