Insulation Company in Highland, CA
Blown in insulation solves the most common comfort complaint we hear from Highland homeowners: rooms that won’t hold temperature no matter how hard the AC runs. Most homes here were built between the 1950s and 1990s, and their original attic insulation has either settled to a fraction of its rated depth or been contaminated by fine desert dust pushed through the Cajon Pass. We’re Comfort Zone Insulation Co, and we install insulation and nothing else. Call (855) 341-7856 when you’re ready to stop paying for air that leaks straight through your ceiling.
Why Highland Homes Are Different
Highland sits at the base of the San Bernardino Mountains, directly in the path of the Santa Ana winds that funnel through the Cajon Pass. That geography creates a unique insulation problem. Summer attic temperatures in Highland routinely push past 140°F, and the fall and winter winds don’t just pull heat out of your home – they drive fine desert dust and sand into attic vents and loose-fill insulation. We regularly open attics in Highland and find insulation that isn’t just thin, it’s gritty with accumulated silt that compresses the material and kills its thermal performance. A simple top-up won’t fix that. The contaminated layer has to come out first.
Most of the housing stock is mid-century to late-20th-century single-family tract construction, wood-framed with vented attics. Homes in the 92346 zip code span everything from original 1950s builds with minimal batts to 1990s homes where the blown-in fiberglass has settled well below current code recommendations. The wind exposure means air sealing matters as much as insulation depth here. If the attic floor isn’t sealed against the pressure differences the Santa Anas create, you’ll still feel drafts even with fresh insulation overhead.
Our Main Highland Services
Highland homeowners call us most often for two services: attic insulation, because the attic is the single highest-impact zone in most homes here, and spray foam, because the wind-driven air leakage through the Cajon Pass corridor makes air sealing a priority.
Attic Insulation in Highland
Attic insulation is where most Highland comfort problems start and where they’re most cost-effectively fixed. We inspect the existing insulation depth, check for wind-deposited dust contamination, and evaluate the air sealing at the attic floor before recommending anything. Many homes in Highland have settled fiberglass or flattened original batts that need removal and replacement rather than a top-up. The goal is an attic that holds the temperature you set, even when the Santa Anas are pushing against your roofline. Attic Insulation in Highland

Spray Foam Insulation in Highland
Spray foam earns its keep in Highland by doing two jobs at once: it insulates and it air-seals. That second function matters more here than in most Southern California cities, because the wind pressure from the Cajon Pass finds every gap and crack in a wood-framed attic and pulls conditioned air straight out. We install open-cell and closed-cell systems from Icynene and Demilec, matched to the specific cavity and the homeowner’s moisture and budget profile. Spray Foam Insulation in Highland

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 Highland
Blown in insulation is a retrofit workhorse for Highland’s mid-century tract homes, where settled attic insulation and dusty, wind-compressed loose fill are the two most common problems we find. It installs fast, fills irregular cavities completely, and lets us match the material to the job – cellulose for recycled-content preference, fiberglass for a lighter option that doesn’t settle as readily. We install blown in insulation from Knauf, CertainTeed, and Rockwool, and every job starts with an attic inspection that tells us whether we’re topping up or removing contaminated material first. For more on the method itself, see our Blown In Insulation overview.
Cellulose Insulation
Signs you need it
Your attic insulation has settled below the top of the ceiling joists, or you can see gaps and bare spots from the attic hatch.
What it costs in Highland
Blown-in cellulose in a typical Highland attic runs $1.50 to $3.50 per square foot depending on depth and whether old material needs removal first.
How we do it
We air-seal the attic floor, then dense-pack or loose-fill the cellulose to the target R-value using a calibrated blowing machine and consistent depth markers.
Blown In Attic Insulation
Signs you need it
Upstairs rooms run 8 to 12 degrees warmer than the rest of the house in summer, or your attic insulation is thin, patchy, and gray with settled dust.
What it costs in Highland
Expect to pay $1,500 to $4,500 for a full blown-in attic insulation job in a typical 1,200 to 2,000 square foot Highland home.
How we do it
We remove any contaminated or compressed material, seal the attic floor penetrations, and blow fresh insulation to code-recommended depth across the entire attic plane.
Blown In Cellulose Insulation
Signs you need it
You want an environmentally preferred option with high recycled content and strong sound damping between floors.
What it costs in Highland
Blown-in cellulose for a Highland attic typically runs $1.50 to $3.50 per square foot, on par with fiberglass but with better air-blocking performance per inch.
How we do it
We install GreenFiber or similar cellulose at a measured depth, typically R-38 to R-49 for Highland attics, with a light surface spray to control dust.
Blown In Fiberglass Insulation
Signs you need it
Your existing fiberglass batts are compressed, torn, or displaced by tradespeople and no longer fill the joist bays.
What it costs in Highland
Blown-in fiberglass in Highland runs $1.20 to $3.00 per square foot depending on depth and access difficulty.
How we do it
We blow Knauf or CertainTeed loose-fill fiberglass to a consistent depth, fluffing it properly so it achieves its rated R-value without excess weight.
What Blown In Insulation Costs in Highland
| Item | Typical range in Highland |
|---|---|
| Attic inspection | Free with estimate |
| Blown-in fiberglass (attic, 1,500 sq ft) | $1,800 – $3,600 |
| Blown-in cellulose (attic, 1,500 sq ft) | $2,200 – $4,500 |
| Full removal of contaminated insulation | $900 – $2,200 added |
Can you fix blown in insulation the same day in Highland?
Yes. Most blown-in attic jobs in Highland are completed in one day once the old material is removed or prepped. Call (855) 341-7856 to confirm current scheduling for your neighborhood.
Is blown in insulation better than batts for a Highland attic?
Usually, yes. Blown-in material fills irregular joist bays and gaps that batts can’t, and it’s faster to install at consistent depth. We’ll tell you if your attic is an exception after we see it.
Brands We Service in Highland
We install products from Knauf, Rockwool, CertainTeed, and Icynene, among others, and we carry parts for each locally. If a brand-specific material needs to be ordered for your Highland job, it typically arrives within a week. See our brands for the full list.
Pricing for Insulation Company in Highland, CA
| Service | Typical range in Highland |
|---|---|
| Blown-in fiberglass | $1.20 – $3.00 per sq ft |
| Blown-in cellulose | $1.50 – $3.50 per sq ft |
| Full attic insulation job (1,200 – 2,000 sq ft home) | $1,500 – $4,500 |
| Attic air sealing (before insulation) | $600 – $1,800 |
| Spray foam – open cell | $1.50 – $3.50 per board ft |
| Spray foam – closed cell | $2.50 – $5.00 per board ft |
| Spray foam attic (full encapsulation) | $4,000 – $12,000 |
| Insulation removal (contaminated or settled) | $900 – $2,500 |
What pushes price up in Highland is contaminated insulation that has to be removed before we can install, plus any air sealing needed to handle the wind pressure from the Cajon Pass. We give you an upfront fixed price after the attic inspection – no surprises, no change orders halfway through the job.
Neighborhoods We Serve in Highland
We work throughout the 92346 zip code, from the older tracts near Baseline and Victoria to the newer developments east toward the foothills. Our typical response time for Highland estimates is 24 to 48 hours, and most jobs schedule within one week.
- East Highlands
- Highland Village area
- North Highland near the foothills
- West Highland near the San Bernardino line
Service Area – Cities Near Highland
We serve Highland as part of our broader Inland Empire coverage, and we regularly work in San Bernardino, CA, Muscoy, CA, Redlands, CA, and Loma Linda, CA. If you’re in one of these neighboring cities, the same insulation-only team handles your job.
Serving Highland, CA — Our Local Coverage Area
We’re based in the Highland 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 Highland
Most Highland homeowners get an estimate within 24 to 48 hours of calling, and installation typically happens within one week. Emergency attic work, like wind-damaged insulation exposed after a Santa Ana event, can often be prioritized.
Most insulation-only retrofit work in Highland doesn’t require a permit, but spray foam on open attic ceilings and some structural or electrical modifications do. We’ll tell you exactly what your job needs before we start. Call (855) 341-7856 for specifics on your home.
Yes. We’re comfortable with HOA requirements in Highland’s planned communities and with the quirks of mid-century construction, from narrow attic hatches to original knob-and-tube wiring that requires careful insulation placement.
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 Highland Customers Say
"Told me the crawlspace didn't need doing and only the attic did. Half the job, half the money."
— Doug Barrett"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