Insulation Company in Sunland, CA
Blown in insulation solves the two problems Sunland homes face most: intense canyon heat pushing attic temperatures past 130°F in summer, and 1950s – 1970s ranch homes that were built with thin or settled attic insulation. We’re Orange County Insulation, an insulation-only contractor that has served Sunland since 2013, and we carry eight major brands so the material matches the house, not whichever product happens to be on the truck. When you call (877) 680-3557, you’ll get a real answer about your attic, your walls, and your cooling bills.
Why Sunland Homes Are Different
Sunland sits in a hot, dry canyon corridor at the base of the Verdugo Mountains and Angeles National Forest. That geography changes insulation work in ways a coastal crew won’t anticipate. Summer heat radiates off the slopes and collects in the canyon, so attic temperatures climb far higher than the LA basin average. Attics in 91040 and 91041 regularly run 30 to 40 degrees hotter than the outside air, which means the insulation’s first job is stopping that heat from bleeding down into living spaces.
The housing stock adds another layer. Much of Sunland is 1950s to 1970s single-story ranch and stucco tract homes, many still sitting on original fiberglass batts that have compressed to half their rated R-value. Hillside and canyon-edge custom houses on slopes bring their own challenges: exposed framing, irregular attic cavities, and wind-driven ember exposure during Santa Ana events. We check attic insulation for ember entry points and fire-resistant material choices, not just thermal performance. R-value matters here, but so does what happens when a red-flag warning day sends ash and embers over the ridge.
Our Main Sunland Services
The two services Sunland homeowners call about most are attic insulation and spray foam, and each one has its own dedicated page with full pricing and local detail.
Attic Insulation in Sunland
Sunland attics are the single biggest energy-loss zone in most homes, and the canyon heat makes them worse than almost anywhere in LA County. We remove or top up what’s already up there, air-seal the attic floor, and install the right material for the house: blown-in fiberglass, cellulose, or batts depending on access, framing, and fire-resistance goals. For the full breakdown, see Attic Insulation in Sunland.

Spray Foam Insulation in Sunland
Hillside custom homes and canyon-edge builds in Sunland often have irregular cavities, sloped ceilings, and open framing that batts and loose fill can’t handle cleanly. Spray foam seals and insulates in one pass, and for homes in the wildland-urban interface, closed-cell foam adds structural rigidity and an air barrier that helps keep embers and ash from being pulled through gaps. We install both open-cell and closed-cell systems. Learn what each one costs and where it fits at Spray Foam Insulation in Sunland.

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 Sunland

Blown in insulation is the most common retrofit we do in Sunland because it handles the two realities of older canyon homes: settled, compressed attic insulation and irregular attic cavities that batts don’t fill cleanly. Loose-fill fiberglass or cellulose is blown through a hose into the attic, filling every corner and odd-shaped space, restoring attic R-value in a single visit. For homes with 1950s – 1970s original insulation, this is usually the fastest, least disruptive fix that actually moves the needle on cooling bills. Blown in insulation also pairs well with air-sealing, which matters in Sunland because canyon winds can pull conditioned air out through attic bypasses. For more on the service in general, see Blown In Insulation.
Cellulose Insulation
Signs you need it
Your attic insulation has settled below the top of the ceiling joists, or rooms on the top floor run 5 to 8 degrees warmer than the rest of the house in summer.
What it costs in Sunland
Blown cellulose in a typical Sunland attic runs $1.20 to $2.30 per square foot installed, depending on depth and access.
How we do it
We air-seal the attic floor penetrations, then blow cellulose to the target depth with a dense-pack machine, checking depth markers as we go.
Blown In Attic Insulation
Signs you need it
Your attic has original or thin insulation, the upstairs runs hot, or you can see the tops of ceiling joists from the attic hatch.
What it costs in Sunland
Blown in attic insulation for a ranch home in Sunland typically lands between $1,800 and $2,600 total.
How we do it
We set up outside, run the hose through the attic access, and blow material to the specified R-value, working from the far end back toward the hatch.
What Blown In Insulation Costs in Sunland
| Item | Typical range in Sunland |
|---|---|
| Blown in attic insulation (complete job) | $1,800 – $2,600 |
| Blown cellulose (per sq ft installed) | $1.20 – $2.30 |
| Blown fiberglass (per sq ft installed) | $0.90 – $2.10 |
Is blown in insulation worth it for a Sunland attic?
Yes. Sunland’s canyon heat pushes attic temperatures very high, and settled or thin insulation lets that heat drive cooling costs up all summer. Restoring attic R-value with blown in material usually pays back in lower AC bills within a few years while also making upstairs rooms more comfortable.
How long does blown in insulation take in Sunland?
Most Sunland attics are done in a single morning or afternoon, depending on access and whether we’re removing old material first. Call (877) 680-3557 and we can give you a realistic time window for your specific house.
Brands We Service in Sunland
We stock and install insulation from Owens Corning, Johns Manville, Knauf, and Rockwool, with material on hand for both standard and fire-resistance-focused Sunland jobs. If a job calls for something in Rockwool’s mineral wool line or a specific Owens Corning blown product, we can usually have it staged within days. See our brands for the full roster.
Pricing for Insulation Company in Sunland, CA
| Service | Typical range in Sunland |
|---|---|
| Attic insulation (complete job, existing attic) | $1,800 – $2,600 |
| Attic air sealing + insulation | $2,200 – $3,400 |
| Spray foam (closed-cell, per board foot) | $1.50 – $3.50 |
| Spray foam (open-cell, per board foot) | $0.80 – $1.60 |
| Blown in attic insulation | $1,800 – $2,600 |
| Blown cellulose (per sq ft) | $1.20 – $2.30 |
| Blown fiberglass (per sq ft) | $0.90 – $2.10 |
| Wall cavity injection/retrofit | $2,200 – $4,000 |
Hillside homes with difficult attic access, custom-framed roofs, or a need for ember-resistant material upgrades in the wildland-urban interface typically run toward the upper end of these Sunland ranges. We quote a fixed price before any work starts, and you’ll know the exact number before we schedule the crew.
Neighborhoods We Serve in Sunland
We work throughout the 91040 and 91041 ZIP codes, from the flats to the canyon edges. Response time for most Sunland estimates is within 2 to 3 business days, and emergency attic checks during fire season get priority scheduling.
- Sunland proper (Foothill and Oro Vista area)
- Shadow Hills border along Sunland Blvd
- Tujunga Canyon Road corridor
- Mountain View and Woodward areas
- Hillside enclaves near the Angeles National Forest boundary
Service Area – Cities Near Sunland
Our crews cover Sunland and the surrounding foothill communities, including Shadow Hills, CA next door, Tujunga, CA just east, La Crescenta-Montrose, CA across the Verdugos, and Burbank, CA to the south. If you’re in one of these areas, the same crews and the same eight-brand material lineup apply.
Serving Sunland, CA — Our Local Coverage Area
We’re based in the Sunland 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 Sunland
Most attic insulation retrofits in Sunland do not require a permit, since they’re classified as minor energy upgrades rather than structural changes. If your project involves adding insulation to new construction or a major remodel, the permit sits with the general contractor’s scope. We can tell you which category your job falls into during the estimate.
Yes. Homes in Sunland’s wildland-urban interface often need materials and assembly details that go beyond standard R-value work. We carry Rockwool mineral wool, which is non-combustible, and we check attic and eave areas for ember entry points so the insulation choice fits the fire-safety picture, not just the thermal one.
Most Sunland homes get an estimate scheduled within 2 to 3 business days, and during fire season we prioritize attic inspections where homeowners suspect ember intrusion or damaged insulation. Call (877) 680-3557 and we’ll get you on the calendar.
Orange County Insulation has served Sunland since 2013. Call (877) 680-3557 for a free estimate on blown in insulation, attic work, or spray foam for your Sunland home.
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 Sunland Customers Say
"Told me the crawlspace didn't need doing and only the attic did. Half the job, half the money."
— Miguel Flores"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."
— Nia Robinson"Installed baffles at the soffits so the new insulation didn't block the ventilation, which the previous contractor apparently never considered."
— Mark Schaefer