Insulation Company in Redlands, CA
Blown in insulation is the most common fix we install in Redlands, and for good reason: most homes here were built before modern energy codes, with attics that hold little more than a few settled inches of fiberglass or nothing at all. When your attic hits 140°F on a Redlands afternoon, that missing insulation turns every room below it into an oven. Brea Insulation has served Redlands since 2014, installing blown in cellulose and fiberglass, spray foam, and attic insulation matched to the house rather than whatever is easiest to stock. Call (866) 858-4033 for a free estimate.
Why Redlands Homes Are Different
Redlands sits on the hot inland side of the Inland Empire. Summer design temperatures top 100°F for weeks at a time, and the sun beats down on clay-tile and composition roofs with a ferocity that pushes attic temperatures past 150°F. That radiant heat pours down through the ceiling into living space, and your air conditioner fights it all day. Insulation in Redlands is not about deep-freeze protection. It is about stopping brutal radiant heat gain and holding a stable indoor temperature without running the AC nonstop.
The housing stock makes this work interesting. Around downtown and the Smiley Park and Prospect Park areas, we see early-1900s Craftsman and Spanish Colonial homes with original framing, period architecture, and attics that were never designed for modern insulation at all. Many have a few inches of settled mineral wool or just bare lath under the roof deck. Farther east and in the 92374 corridor, post-war tract homes from the 1950s and 60s often have thin batt insulation that has compressed and lost most of its R-value over decades. Newer subdivisions in 92374 and 92375 generally start from a better place, but even they benefit from air sealing and attic top-ups when energy bills creep upward.
Our Main Redlands Services
Redlands homeowners call us most often about two things: re-insulating attics that have baked under decades of inland heat, and air-sealing with spray foam to stop drafts and radiant gain in older framing. Each has its own dedicated page below.
Attic Insulation in Redlands
Most Redlands attics are dramatically under-insulated for this climate. We find homes with R-11 or less where R-38 to R-49 is the actual need given 100°F summers and long cooling seasons. On older Craftsman and Spanish Colonial homes near downtown, cathedral ceilings and limited attic access make material choice and install method critical. We blow in cellulose or fiberglass over existing insulation, add radiant barrier where the roof assembly allows, and air-seal penetrations so hot attic air cannot draft into the house. See the full breakdown at Attic Insulation in Redlands.

Spray Foam Insulation in Redlands
Spray foam solves problems blown-in cannot. In Redlands homes with uninsulated walls, open floor plans, or cathedral ceilings with no vent space, closed-cell foam creates an air seal and a thermal barrier in one pass. We spray Icynene and Demilec lines for projects where air sealing matters as much as R-value, especially on canyon-edge lots that catch strong afternoon winds through the San Timoteo Canyon. Learn more on the Spray Foam Insulation in Redlands page.

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 Redlands

Blown in insulation is the workhorse solution for Redlands homes because it reaches into corners, around framing, and over existing settled insulation in ways batts cannot. In Redlands, we typically blow either cellulose or fiberglass to depths that deliver R-38 to R-49 in vented attics, which cuts attic heat transfer significantly. For homes built in the 1950s and earlier, this is usually the most cost-effective way to reduce cooling costs without tearing out ceilings or walls. If you want to understand the method in more depth, see Blown In Insulation.
Blown In Attic Insulation
Signs you need it
Rooms below the attic run 5 – 10°F warmer than the rest of the house, the AC cycles constantly from June through October, or your attic has less than 8 inches of settled insulation.
What it costs in Redlands
Blown in attic insulation in Redlands typically runs $1,500 – $3,400 for a standard 1,200 – 2,000 sq ft attic, depending on current depth, target R-value, and whether air sealing is included.
How we do it
We air-seal penetrations, install baffles at soffit vents to protect airflow, blow cellulose or fiberglass to the specified depth, and verify final R-value with a depth check.
Blown In Cellulose Insulation
Signs you need it
You want a dense-packed fill that reduces airflow through existing wall cavities, or you have old batt insulation that has slumped and left gaps at the top of stud bays.
What it costs in Redlands
Blown in cellulose in Redlands typically runs $1.25 – $2.75 per square foot of installed area, with attic top-ups on the lower end and dense-packed walls on the higher end.
How we do it
We use GreenFiber recycled cellulose where customers prioritize eco-conscious materials, blowing it through hoses into attics or netted and dense-packed into wall cavities.
What Blown In Insulation Costs in Redlands
| Item | Typical range in Redlands |
|---|---|
| Blown in attic insulation (1,200 – 2,000 sq ft) | $1,500 – $3,400 |
| Blown in cellulose (per sq ft installed) | $1.25 – $2.75 |
| Blown in fiberglass (per sq ft installed) | $1.00 – $2.25 |
Can you blow in insulation over old insulation in Redlands?
Yes, in most vented attics we blow new cellulose or fiberglass directly over existing material after checking for moisture, vermiculite, or electrical issues. The old insulation stays in place and the new layer brings total depth up to current R-value targets.
How long does blown in insulation last in a Redlands attic?
Cellulose and fiberglass last 30 – 50 years in a dry, vented attic, but Redlands heat can settle fiberglass faster. We recommend an inspection every 10 – 15 years to confirm depth and R-value. Call (866) 858-4033 to schedule a check.
Brands We Service in Redlands
We install CertainTeed fiberglass, Icynene and Demilec spray foam, and GreenFiber cellulose in Redlands, with materials brought in per job from our Brea warehouse. Most products arrive within one to two business days. See our brands for the full roster.
Pricing for Insulation Company in Redlands, CA
| Service | Typical range in Redlands |
|---|---|
| Air sealing (whole house) | $500 – $1,000 |
| Attic insulation removal | $1.00 – $2.50 per sq ft |
| Attic insulation install (batts) | $1.50 – $3.50 per sq ft |
| Attic insulation top-up | $1.20 – $2.80 per sq ft |
| Blown in attic insulation | $1,500 – $3,400 total |
| Blown in cellulose | $1.25 – $2.75 per sq ft |
| Blown in fiberglass | $1.00 – $2.25 per sq ft |
| Spray foam (open-cell) | $0.80 – $2.00 per board ft |
| Spray foam (closed-cell) | $1.50 – $4.00 per board ft |
| Spray foam attic insulation | $3,000 – $10,500 total |
Redlands prices climb when attics have limited access, old wiring that needs clearance, or cathedral ceilings that require specialized equipment. We quote upfront and hold to the number before any work begins.
Neighborhoods We Serve in Redlands
We work across Redlands, from the historic streets near Smiley Park and Prospect Park to the post-war tracts east of downtown and the newer subdivisions along the 92374 and 92375 corridors. Older neighborhoods with period architecture and dated or degraded insulation keep us busiest in summer.
- Smiley Park
- Prospect Park
- South Redlands
- North Redlands
- East Redlands
We typically schedule Redlands appointments within two to four business days, with faster turnaround for urgent attic air sealing during heat waves.
Service Area – Cities Near Redlands
Brea Insulation covers the communities around Redlands as well. We regularly install insulation in Mentone, CA, Loma Linda, CA, Highland, CA, and Colton, CA, with the same material bench and installation methods we use in Redlands. If you own a rental property or manage multiple homes across these cities, one call sets up estimates at each address.
Serving Redlands, CA — Our Local Coverage Area
We’re based in the Redlands 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 Redlands
Most insulation top-ups and replacements do not require a city permit, but wall cavity work or projects involving structural changes may. We can advise on the specific requirements for your Redlands property during the estimate.
Yes. For Craftsman and Spanish Colonial homes near downtown, we use blown in cellulose or dense-packed methods that work from the attic or through small access points, leaving original plaster, trim, and rooflines intact. The goal is comfort, not visible change.
June through September is our busiest stretch in Redlands. We recommend calling (866) 858-4033 two to three weeks before you want work done, though we hold a few slots each week for emergency attic air sealing when temperatures spike.
Call Brea Insulation at (866) 858-4033 for a free estimate on blown in insulation, attic insulation, or spray foam in Redlands. We’ll inspect what you have, measure what you need, and quote a price that holds.
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 60-minute.
- 4You approve before work beginsNothing starts until you say go.
What Redlands Customers Say
"Handled the utility rebate paperwork, which knocked a real amount off the final cost."
— Diego Garcia"Found and sealed a gap around the chimney chase that was basically an open chimney to the attic."
— Darius Grant"Installed baffles at the soffits so the new insulation didn't block the ventilation, which the previous contractor apparently never considered."
— Marisol Vargas