Insulation Company in Highland, CA
Blown in insulation is the service Highland homeowners call us about most, and the reason usually comes down to one thing: a mid-century or 1970s tract home with an attic that was never brought up to code. Homes here sit at the base of the San Bernardino Mountains, where summer attic temperatures climb past 140°F and Santa Ana winds push heat and ember risk straight into foothill neighborhoods. We’re a dedicated insulation contractor, not a generalist, and we stock eight brands so the fix matches the house. Call (866) 566-0304 for a free estimate.
Why Highland Homes Are Different
Highland’s housing stock does the heavy lifting when it comes to explaining insulation needs. The city grew in bursts: mid-century ranch homes, sprawling 1970s and 1980s tract developments, and a newer ring of custom homes climbing toward the foothills. Many of those older attics still have R-11 fiberglass or bare batts, sometimes scorched and crumbling after forty or fifty summers of Inland Empire heat. Highland isn’t a cold-winter market. The problem is attic heat gain, radiant transfer through the ceiling, and duct loss that makes air conditioners run constantly from June through October.
The 2003 Old Fire also changed how Highland homeowners think about their building envelope. People who live in the foothill neighborhoods near Highway 330 and the wash corridors ask about ember-resistant, fire-conscious insulation choices more than anywhere else we work. Mineral wool and closed-cell spray foam come up in those conversations. Add the Santa Ana wind events that rattle older single-pane windows and push dusty air through every gap in the shell, and you have a city where insulation is a year-round performance issue, not a winter comfort add-on. At home in East Los Angeles, we learned this trade on exactly this kind of diverse, aging housing stock.
Our Main Highland Services
Two insulation methods get the most calls from Highland homeowners: attic insulation and spray foam. Both are handled in-house by our own crews, never subcontracted, and both are covered by dedicated Highland service pages.
Attic Insulation in Highland
Most of the heat that turns a Highland house into an oven in August comes through the attic. We see original R-11 batts, bare drywall, and recessed can lights leaking air into the attic space all day long. Attic insulation in Highland means assessing what’s there, air-sealing the ceiling plane, and bringing the assembly up to something that actually resists that 140°F+ roof deck. We carry Owens Corning, Johns Manville, and Rockwool batts, plus GreenFiber blown-in for retrofit jobs with tricky attic geometry. Read the full breakdown here: Attic Insulation in Highland.

Spray Foam Insulation in Highland
Spray foam earns its cost in Highland on homes where the attic is either an odd shape or packed with ductwork that’s bleeding conditioned air. Closed-cell foam does two jobs at once: it insulates and it air-seals. In Old Fire foothill areas, closed-cell also adds a level of ember resistance that fiberglass doesn’t. We spray Icynene and Demilec, two brands with long field records, and we quote the square footage honestly. Here’s the full Highland-specific guide: Spray Foam Insulation in Highland.

Blown In Insulation in Highland
Blown in insulation is the most practical retrofit for most Highland homes because it can be installed over existing batts without tearing out drywall or rebuilding the attic floor. In a 1970s tract home with low-pitch roof lines and tight attic access, blowing in GreenFiber cellulose or fiberglass loose fill gets us into corners batts never reach. This is the same method covered on our main Blown In Insulation hub, applied to Highland’s specific heat and housing conditions.
Cellulose Insulation
Signs you need it
Your attic has settled batts, visible gaps between joists, or you can feel heat radiating through the ceiling on summer afternoons.
What it costs in Highland
Cellulose insulation in Highland attics typically runs $2,300 to $4,000 depending on attic size and existing depth, using GreenFiber recycled-content material.
How we do it
We air-seal the ceiling plane first, then dense-pack or loose-fill cellulose to the specified R-value, paying special attention to the perimeter where Highland heat leaks in most.
Blown In Attic Insulation
Signs you need it
You have rooms that are 10-15 degrees hotter than the rest of the house in summer, or your AC runs constantly while the thermostat never quite hits the set point.
What it costs in Highland
Blown in attic insulation in Highland ranges from $2,000 to $3,600 for a typical 1,200-1,500 square foot attic, including air-sealing and R-38 depth.
How we do it
We remove or leave the existing material depending on condition, seal all penetrations, install vent baffles, and blow to a consistent, measured depth across the entire attic floor.
Blown In Cellulose Insulation
Signs you need it
Your attic has old, compressed fiberglass or you want a denser, better-performing retrofit that also handles sound and airflow better than standard batts.
What it costs in Highland
Blown in cellulose insulation in Highland typically costs $2,800 to $4,200 including full removal of degraded existing material and new GreenFiber cellulose to R-38.
How we do it
We remove the old material, inspect the deck and wiring, seal the ceiling, then blow cellulose in multiple passes to hit the target density and R-value evenly.
Blown In Fiberglass Insulation
Signs you need it
You want a lighter, moisture-resistant blown-in product and your attic has flat, open geometry that makes fiberglass an efficient choice.
What it costs in Highland
Blown in fiberglass insulation in Highland runs $2,500 to $4,000 for a standard attic, using Johns Manville or Knauf loose fill to R-38.
How we do it
We air-seal, set depth markers throughout the attic, and blow fiberglass to a precise, uniform depth using calibrated equipment so there are no thin spots.
What Blown In Insulation Costs in Highland
| Item | Typical range in Highland |
|---|---|
| Blown in attic insulation (1,200-1,500 sq ft attic) | $2,000 – $3,600 |
| Blown in cellulose insulation (with old material removal) | $2,800 – $4,200 |
| Blown in fiberglass insulation (to R-38) | $2,500 – $4,000 |
Prices move up in Highland when the attic has vaulted ceilings, multiple levels, or old knob-and-tube wiring that requires extra care. Every quote is upfront and line-itemed before work starts; no surprise charges after we’ve opened the attic.
How long does blown in insulation last in Highland’s heat?
Cellulose and fiberglass both hold up well, but Highland’s attic heat accelerates settling in any loose-fill product. Expect 15-20 years of solid performance, less if the attic isn’t ventilated properly. Call (866) 566-0304 and we’ll check your attic’s condition honestly.
Can you blow insulation over what’s already in my Highland attic?
Yes, in most cases we can blow directly over settled or thin existing insulation. The exception is old material that’s water-damaged, pest-infested, or compressed below R-5. We’ll tell you which situation you have before we quote anything.
Brands We Service in Highland
We stock and install Owens Corning, Johns Manville, GreenFiber, and Demilec products in Highland, among our full lineup. Material arrives from our warehouse within a day or two, so Highland jobs don’t wait on supply. Read more at our brands.
Pricing for Insulation Company in Highland, CA
| Service | Typical range in Highland |
|---|---|
| Blown in attic insulation (1,200-1,500 sq ft attic) | $2,000 – $3,600 |
| Blown in cellulose insulation (GreenFiber) | $2,300 – $4,000 |
| Blown in cellulose insulation (with removal) | $2,800 – $4,200 |
| Blown in fiberglass insulation (to R-38) | $2,500 – $4,000 |
| Attic insulation (batt, R-38 upgrade) | $2,000 – $3,400 |
| Spray foam insulation (closed-cell, per sq ft) | $1.50 – $3.50 per sq ft |
| Spray foam insulation (open-cell, per sq ft) | $0.80 – $1.50 per sq ft |
| Crawl space / rim joist sealing | $1,000 – $2,500 |
Highland prices push higher when attics are steep, cramped, or need old material removed, and when homes sit in foothill zones with longer hose runs and trickier access. We quote a firm, line-itemed price before any work begins, and that number doesn’t change unless the scope does.
Neighborhoods We Serve in Highland
We work throughout Highland, from the older ranch neighborhoods near Base Line and Victoria to the newer developments up toward the foothills. Our crews are in the area several days each week, with typical scheduling within one to three business days depending on scope.
- East Highlands
- Highland Village
- The Foothill neighborhoods near Highway 330
- Baseline corridor
- Sterling area
Service Area – Cities Near Highland
Our Highland crews also cover the surrounding Inland Empire communities. We regularly quote and install in San Bernardino, CA, Muscoy, CA, Redlands, CA, and Loma Linda, CA. Same phone, same crew standards, same brands.
Serving Highland, CA - Our Local Coverage Area
We serve Highland and nearby communities. Use the map below to see the area we cover. If you’re nearby, we can almost certainly help.
FAQs About Insulation Company in Highland
Most Highland estimates happen within one to three business days. Installation usually follows within a week or two depending on material and crew schedule. For emergencies like exposed wiring or wind-damaged insulation, call (866) 566-0304 and we’ll move things around.
Most standard attic and blown-in insulation work in Highland doesn’t require a permit. Spray foam in certain zones or homes in the foothill fire-safety overlay may need additional review. We’ll verify local requirements before we quote, and we handle any paperwork that’s needed.
We cover all of 92346 plus the surrounding unincorporated areas, including the foothill communities east of the 330 and the Baseline corridor. If you’re not sure whether you’re in our Highland service area, call (866) 566-0304 and we’ll confirm in about thirty seconds.
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.
- 3We come out and measureLicensed & insured, at a time that suits you. The visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Highland Customers Say
"Plastic laid from the front door to the attic hatch and they vacuumed the hallway afterward."
- Diego Castillo"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."
- Gilbert Herrera"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."
- Jason Walsh