Insulation Company in Van Nuys, CA
Blown in insulation is the workhorse fix for Van Nuys homes, and for good reason: most of the housing stock here was built between the 1920s and 1970s with little to no attic insulation, and summer attic temperatures routinely hit 140-160°F. That heat radiates down through ceilings all evening, making air conditioners run nonstop. Porch Light Insulation has served Van Nuys since 2014, and we match the material to your home – not to our inventory. Call (877) 521-4987 for a free estimate.
Why Van Nuys Homes Are Different
Van Nuys sits in the hottest part of the San Fernando Valley basin. Unlike coastal Los Angeles, where marine air tempers summer heat, Van Nuys gets direct, intense solar gain day after day. Attic temperatures in the 91401, 91405, and 91406 zip codes regularly climb past 140°F in July and August. That changes the insulation conversation entirely. We’re not chasing winter cold here – we’re fighting relentless attic heat that pushes down through ceilings, overheats ductwork, and forces AC systems to work far harder than they were designed to.
Most Van Nuys homes are a mix of pre-war bungalows and post-war tract ranches, many with original kraft-faced batts or bare joists that have collapsed or been shredded by rodents after decades of roof heat. The stucco-over-wood-frame construction common throughout the Valley makes exterior rigid-foam retrofits awkward, which pushes the real efficiency work toward attics and crawlspaces. On those older stucco ranches, our technicians frequently find the original 1950s rock wool already settled to a fraction of its rated R-value. Radiant barrier plus air sealing often pays back faster than adding R-value alone because it stops heat at the roof deck before it ever enters the living space.
Our Main Van Nuys Services
Two services dominate the calls we get from Van Nuys homeowners: attic insulation and spray foam. Here’s what each one looks like on the ground here.
Attic Insulation in Van Nuys
Most Van Nuys attics we open are under-insulated by a wide margin. A typical 1960s ranch off Van Nuys Blvd might have R-19 fiberglass batts that have compressed to R-11 or less. We pull the old material, air seal every penetration – plumbing vents, wire chases, recessed lights – then blow in fresh insulation to R-38 or higher. On flat and low-slope roof additions, where trapped attic heat is worst, we add a radiant barrier to reflect heat before it soaks into the insulation. This is the single highest-impact efficiency job for most Van Nuys homes. Learn more on our Attic Insulation in Van Nuys page.
Spray Foam Insulation in Van Nuys
Spray foam solves a different Van Nuys problem: air leakage through stucco walls, rim joists, and the awkward transitions where hip roofs meet interior ceilings. Open-cell foam from Icynene and Demilec works well in attics and interior walls, while closed-cell adds vapor control for crawlspaces and flat-roof additions. Because spray foam expands to fill gaps, it also locks out the dry Santa Ana dust that sneaks through old wall cavities. If you’re dealing with a hot room over a garage or a rear addition that never cools down, this is usually the answer. See our Spray Foam Insulation in Van Nuys page for specifics.
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 common service we perform in Van Nuys because most attics here were never brought up to modern code. Homes built before 1978 in the 91401 and 91405 grid typically have R-11 to R-19 at best, and many have bare joists with nothing at all. When attic heat hits 150°F, that missing insulation turns ceilings into radiators. Blown in fiberglass or cellulose raises the attic to R-38 or R-49, which drops ceiling surface temperatures dramatically and lets AC systems cycle normally. On Van Nuys’ older ranches, technicians commonly find the original 1950s rock wool already collapsed or rodent-nested after decades of roof heat – and blown in insulation is the fastest, most complete fix. See our Blown In Insulation hub for the full method breakdown.
Cellulose Insulation
Signs you need it
Rooms directly under the attic never cool below 80°F on summer afternoons, even with the AC running.
What it costs in Van Nuys
Blown-in cellulose for a typical Van Nuys attic runs $1.30 – $2.50 per square foot depending on depth and access.
How we do it
We air-seal attic bypasses first, then blow GreenFiber cellulose to the target R-value with specialized equipment and verify depth with gauge rods.
Blown In Attic Insulation
Signs you need it
You can see the tops of ceiling joists in the attic – that means you have less than R-19 and your home is losing conditioned air all summer.
What it costs in Van Nuys
Full attic blow-in for a 1,200-square-foot Van Nuys ranch typically runs $1,500 – $3,000 including air sealing and debris removal.
How we do it
We remove any failed material, seal every penetration with can foam, install baffles at the eaves for airflow, then blow fiberglass or cellulose to a consistent R-38 or R-49.
Blown In Fiberglass Insulation
Signs you need it
Existing fiberglass batts are torn, compressed, or pushed aside from old electrical or HVAC work, leaving bare spots that show up as hot patches on ceilings.
What it costs in Van Nuys
Blown-in fiberglass runs $1.10 – $2.20 per square foot in Van Nuys, with the final number driven by attic access and target R-value.
How we do it
We run a reinforced hose from the truck to the attic and blow Owens Corning or Johns Manville fiberglass in a controlled grid pattern, building up to a consistent depth.
Loose Fill Insulation
Signs you need it
Attic insulation has settled unevenly, leaving valleys and bare patches that conduct heat directly into the rooms below.
What it costs in Van Nuys
Loose fill installation in Van Nuys ranges from $1.10 – $2.50 per square foot depending on whether we’re topping off existing material or starting from bare joists.
How we do it
We assess what’s already there, decide whether to remove or top off, then blow loose fill to a measured, even depth with attention to soffit vents and can-light clearances.
What Blown In Insulation Costs in Van Nuys
| Item | Typical range in Van Nuys |
|---|---|
| Blown-in fiberglass (existing attic, 1,200 sq ft) | $1,300 – $2,600 |
| Blown-in cellulose (existing attic, 1,200 sq ft) | $1,550 – $3,000 |
| Full attic blow-in with air sealing | $1,500 – $3,000 |
Is blown in insulation worth it in Van Nuys?
Yes. Attic temperatures above 140°F push heat through under-insulated ceilings all evening, and raising a Van Nuys attic from R-11 to R-38 typically cuts the cooling load on rooms directly below by 20 – 30%. That means shorter AC runtimes and noticeably cooler afternoons. Call (877) 521-4987 for a free attic assessment.
How long does blown in insulation last in Van Nuys?
Fiberglass and cellulose blown in to proper depth can perform for 20 – 30 years in Van Nuys before settling becomes an issue. The bigger risk is rodent activity and roof leaks, which are common in older Valley tract homes. We always check for both before adding new material.
Brands We Service in Van Nuys
We install products from eight manufacturers, and in Van Nuys we lean on Owens Corning and Johns Manville for fiberglass, GreenFiber for cellulose, and Demilec for spray foam. Common materials are stocked locally, so most Van Nuys jobs start within days of the estimate. See our brands for the full lineup.
Pricing for Insulation Company in Van Nuys, CA
| Service | Typical range in Van Nuys |
|---|---|
| Attic insulation (blown-in, full attic) | $1,500 – $3,000 |
| Blown-in fiberglass (per sq ft) | $1.10 – $2.20 |
| Blown-in cellulose (per sq ft) | $1.30 – $2.50 |
| Loose fill insulation (per sq ft) | $1.10 – $2.50 |
| Cellulose insulation (per sq ft) | $1.30 – $2.50 |
| Attic air sealing (standalone) | $400 – $900 |
| Spray foam (open-cell, per sq ft) | $0.50 – $1.50 |
| Spray foam (closed-cell, per sq ft) | $1.00 – $3.00 |
In Van Nuys, the biggest price movers are attic access – older bungalows often have tight scuttle holes that slow the work – and whether old insulation needs to be removed first. Rodent damage, collapsed 1950s rock wool, and flat-roof additions all push toward the higher end. Every quote we give is an upfront fixed price, not an estimate with fine print.
Neighborhoods We Serve in Van Nuys
We work across the entire Van Nuys basin, from the 91401 and 91405 grid near Van Nuys Blvd to the 91406 tract homes further east and the 91411 subdivisions toward the south. Our crews know the difference between a 1920s bungalow and a 1970s stucco ranch because it changes how we approach the attic. Typical response time anywhere in Van Nuys is one to three business days for an estimate.
- Van Nuys Blvd corridor (91401)
- Midvale / Hazeltine grid (91405)
- Sepulveda Basin area (91406)
- Victory Blvd tracts (91411)
- Sherman Way corridor (91401)
Service Area – Cities Near Van Nuys
Beyond Van Nuys, Porch Light Insulation covers the neighboring Valley communities with the same insulation-only focus. We work regularly in Valley Glen, CA, Sherman Oaks, CA, Encino, CA, and North Hills, CA. Every home gets the same approach: we match the material to the house, not to our inventory.
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
We typically schedule Van Nuys estimates within one to three business days. If you’re dealing with a failed attic that’s making rooms unusable during a heat wave, call (877) 521-4987 and we’ll let you know if same or next-day assessment is available. Estimates are free.
Standard attic, blown-in, and spray foam insulation projects in Van Nuys generally don’t require a city permit because they’re not structural changes. The exception is any project that alters walls or roof assemblies. We’ll tell you upfront if your specific job crosses that line.
Yes. Most Van Nuys attic and blown-in jobs finish in a single day, and spray foam usually takes one to two days. We schedule around your availability and keep the worksite clean – no debris left in the yard or driveway.
Ready to get your Van Nuys home comfortable again? Call Porch Light Insulation at (877) 521-4987 for a free, no-pressure estimate. We’ll show you exactly what’s in your attic, what it should be, and what it costs to fix – with numbers, not sales talk.
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
"Plastic laid from the front door to the attic hatch and they vacuumed the hallway afterward."
— Rosa Mendoza"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."
— Ruben Garcia"Handled the utility rebate paperwork, which knocked a real amount off the final cost."
— Adam Parker