Insulation Company in Van Nuys, CA
Most Van Nuys homes leak conditioned air straight through their attics, and attic temperatures here routinely pass 140°F in summer. Blown in insulation is the most common retrofit we perform across Van Nuys because it fills the shallow, uneven cavities in 1940s-1970s stucco tract houses and low-rise apartment buildings faster and more completely than batt replacement. Thermal Insulation Co has served Van Nuys since 2012, and we match the material to the house, not the other way around. Call (855) 382-3451 for a free estimate.
Why Van Nuys Homes Are Different
Van Nuys sits in the middle of the San Fernando Valley, where summer temperatures run 10-20°F hotter than coastal LA, and the building stock was mostly framed before Title 24 energy codes took insulation seriously. We see the same pattern block after block in the postwar neighborhoods: single-story stucco tract houses and wood-frame apartment buildings with minimal original attic insulation, often compressed to a fraction of its original R-value. The attics are shallow and poorly ventilated, so heat loads transfer down through ceilings all afternoon and into the evening. Cooling, not heating, drives the work here. Radiant heat from a flat or low-slope roof baking in 100°F sun is the real enemy, and old blown-in fiberglass or rock wool is often settled to the point where it’s doing almost nothing over the living space. The result is a city-specific retrofit problem: the right insulation has to handle extreme dry heat, tight attic clearances, and decades of deferred maintenance. Van Nuys’s sizable rental apartment stock adds another layer – many units were insulated once, if at all, and landlords are now upgrading attics to keep tenants from running portable AC units around the clock.
Our Main Van Nuys Services
Two services account for most of what Van Nuys homeowners call us about: attic insulation retrofits, and spray foam for the houses where air sealing matters as much as thermal resistance.
Attic Insulation in Van Nuys
Attic insulation in Van Nuys is where we start on nearly every energy audit, because the attic is the single largest source of cooling loss in a Valley tract house. We remove the old compressed or vermin-damaged material, air seal the top plates and penetrations, and rebuild the insulation to a level that actually holds up under a 140°F attic. Flat and low-slope roofs limit access, so we work carefully in tight clearances. For a full breakdown, see Attic Insulation in Van Nuys.
Spray Foam Insulation in Van Nuys
Spray foam in Van Nuys solves a problem batt and blown-in material cannot: the air leaks baked into 1950s-1970s wood-frame walls and roof decks. Closed-cell foam in particular adds structural rigidity and a vapor barrier in one pass, which matters in a climate where afternoon sun pushes moisture through stucco and into wall cavities. We install both open-cell and closed-cell systems. Read more at 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 fixes the most common insulation failure we find in Van Nuys: old batt or loose-fill material that has settled, compressed, or never covered the attic floor properly in the first place. Because Van Nuys summers push attic temperatures past 140°F, the difference between an even 14 inches of blown-in fiberglass and a patchy, settled 4 inches is the difference between a house that holds 78°F and one that runs the AC from noon to midnight. We install blown-in fiberglass and cellulose from Owens Corning, Johns Manville, and GreenFiber, matched to the attic’s depth, venting, and access constraints. If you’re comparing methods, see our full Blown In Insulation overview.
Cellulose Insulation
Signs you need it
Your attic has old, settled material with bare spots over the ceiling joists, and you want a dense, recycled-content fill that resists air movement better than fiberglass.
What it costs in Van Nuys
Blown-in cellulose in Van Nuys typically runs $1.20-$2.00 per square foot installed, depending on depth and access.
How we do it
We air seal the ceiling plane, then blow GreenFiber cellulose to the target depth with a calibrated machine, checking density at multiple points so the R-value is uniform, not just deep in the middle.
Blown In Attic Insulation
Signs you need it
Rooms directly under the attic are 8-10°F hotter than the rest of the house in summer, and the existing attic insulation is uneven, compressed, or missing over the living space.
What it costs in Van Nuys
Blown-in attic insulation in Van Nuys ranges from $1,000-$2,500 for a typical 1,000-1,500 sq ft attic, depending on material, target R-value, and whether old material needs removal first.
How we do it
We remove or top-dress the existing material, seal the air leaks, install baffles to keep the soffit vents clear, then blow in fresh insulation to a precise, verified depth.
Blown In Cellulose Insulation
Signs you need it
You want the highest recycled content available and better air-blocking than fiberglass, especially in an older Van Nuys attic with irregular framing bays.
What it costs in Van Nuys
Blown-in cellulose in Van Nuys runs roughly $1.20-$2.00 per square foot installed; dense-pack wall applications cost more per square foot than open attic floors.
How we do it
For attic floors we blow the cellulose loose to depth; for walls we dense-pack it into closed cavities at pressure so it won’t settle over time.
Blown In Fiberglass Insulation
Signs you need it
Your attic is large, open, and relatively even, and you want a stable, non-settling fill at a lower material cost than cellulose.
What it costs in Van Nuys
Blown-in fiberglass in Van Nuys typically runs $0.80-$1.50 per square foot installed, so a 1,200 sq ft attic usually lands between $1,000 and $1,800.
How we do it
We blow Owens Corning or Johns Manville loose-fill fiberglass to the depth required for the target R-value, with a backing check to confirm even coverage over every bay.
Loose Fill Insulation
Signs you need it
You have an attic with hard-to-reach corners, low headroom, or uneven joist spacing where batts won’t lay flat and leave gaps around every obstacle.
What it costs in Van Nuys
Loose fill in Van Nuys spans $0.80-$2.00 per square foot installed, with fiberglass at the lower end and cellulose at the higher end.
How we do it
We run the fill through a pneumatic system and blow it into every cavity and corner, achieving a continuous thermal layer that batts simply can’t match in an irregular attic.
What Blown In Insulation Costs in Van Nuys
| Item | Typical range in Van Nuys |
|---|---|
| Blown-in fiberglass (attic floor, R-38) | $0.80 – $1.50 per sq ft |
| Blown-in cellulose (attic floor, R-38) | $1.20 – $2.00 per sq ft |
| Full attic removal, air seal, and re-insulation (1,200 sq ft) | $1,500 – $3,000 |
Is blown in insulation worth it in Van Nuys?
Yes, especially for pre-1980s Van Nuys homes where the existing attic insulation is settled or thin. A properly air-sealed and reinsulated attic cuts the cooling load on the rooms directly below it, which is where Valley tract houses feel the worst in summer.
How long does blown in insulation take in Van Nuys?
Most Van Nuys attic jobs finish in one day. Removal of old material, air sealing, and re-blowing a 1,200 sq ft attic is a single-day job for our crew; dense-pack wall retrofits can add a second day depending on access.
Brands We Service in Van Nuys
We stock and install Owens Corning, Johns Manville, Knauf, and Rockwool products for Van Nuys jobs, plus GreenFiber cellulose and Icynene and Demilec spray foam. Because we carry competing brands across each category, a fiberglass-vs-mineral-wool decision for a Van Nuys attic is driven by your home’s R-value target and fire or moisture conditions, never by what happens to be in our warehouse. Parts and material are locally available, so most jobs schedule within a week. See our brands for the full line.
Pricing for Insulation Company in Van Nuys, CA
| Service | Typical range in Van Nuys |
|---|---|
| Blown-in fiberglass attic insulation | $0.80 – $1.50 per sq ft |
| Blown-in cellulose attic insulation | $1.20 – $2.00 per sq ft |
| Full attic removal, air seal, and re-insulation | $1,500 – $3,000 |
| Attic insulation retrofit (typical 1,200 sq ft attic) | $1,000 – $2,500 |
| Spray foam insulation (open-cell) | $1.50 – $3.50 per sq ft |
| Spray foam insulation (closed-cell) | $2.50 – $5.00 per sq ft |
| Batt insulation replacement (attic floor) | $1.00 – $2.50 per sq ft |
| Mineral wool batt insulation | $2.00 – $4.00 per sq ft |
| Radiant barrier installation | $0.50 – $1.50 per sq ft |
Van Nuys prices run higher than the Valley average when attics are tight, flat-roofed, or full of vermin-damaged material that needs full removal before new insulation goes in. Every job gets an upfront line-item quote, and we don’t pad the estimate with surprise charges after the crew shows up.
Neighborhoods We Serve in Van Nuys
We work across the full Van Nuys zip code, from the postwar tract streets north of Vanowen to the apartment-dense corridors along Victory and Sepulveda. Response for estimates in Van Nuys is typically same-week, with emergency attic sealing available during heat waves.
- Valley Glen
- Lake Balboa
- Van Nuys Airport area
- Sepulveda Basin
- Midvale
Service Area – Cities Near Van Nuys
We serve the surrounding San Fernando Valley communities, including Valley Glen, CA, Sherman Oaks, CA, Encino, CA, and North Hills, CA. If you’re in a neighboring city and your attic is baking, call us at (855) 382-3451 and we’ll confirm coverage.
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 don’t require a permit, since they’re classified as maintenance rather than structural work. The exception is spray foam in certain assemblies, where the city may require a thermal barrier inspection. We’ll tell you upfront if your project needs one.
Yes, we handle multi-unit attic and wall retrofits across Van Nuys’s rental stock. We coordinate with property managers to schedule units building-wide, which keeps disruption down and gets the whole building on the same insulation standard.
Most Van Nuys jobs schedule within a week, and during heat waves we can often move attic jobs up. Emergency air sealing and attic insulation for houses with failed AC or extreme heat gain get priority, so call (855) 382-3451 and we’ll give you a real date, not a vague window.
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
"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."
— Christine Park"Handled the utility rebate paperwork, which knocked a real amount off the final cost."
— Chris Kowalski"Plastic laid from the front door to the attic hatch and they vacuumed the hallway afterward."
— Gabriela Rodriguez