Insulation Company in Mentone, CA
Blown in insulation is the most common call we get from Mentone homeowners, and the reasons are consistent: original 1950s and 60s attic insulation that’s settled to a few inches, rooms that cook all afternoon in the triple-digit summer heat, and heating bills that spike on cold winter nights at the base of the San Bernardino Mountains. Fountain Valley Insulation installs blown-in, attic, and spray foam insulation across Mentone’s 92359 zip code, matching the material to the house rather than forcing one product onto every job. Call (833) 390-3099 for a free estimate, and we’ll tell you exactly what’s in your attic right now and what it should have.
Why Mentone Homes Are Different
Mentone sits tight against the San Bernardino Mountains at the east edge of the Redlands area, which means insulation here works against a genuine two-season swing. Summer afternoons regularly pass 100°F, sending attic temperatures well above 140°F, while winter nights drop toward freezing and heating systems run for hours. That’s a fundamentally different problem than coastal California, where a modest R-value handles a mild climate. Here, thin attic insulation doesn’t just waste energy; it turns upstairs rooms into ovens by late afternoon and lets every bit of heat escape after sundown.
The housing stock compounds it. Mentone is dominated by older single-story ranch and craftsman-style houses on larger lots, most built decades before modern Title 24 energy codes existed. We routinely find attics with three or four inches of original fiberglass, settled to half its rated depth, sometimes with bare patches where wind or rodents moved it. Crawlspaces and perimeter walls are frequently uninsulated entirely. Air sealing is almost always needed alongside a re-blow, because the gaps around can lights, plumbing penetrations, and top plates leak conditioned air year-round. For a mountain-adjacent town with big day-night temperature swings, attic air sealing and a proper re-blow is one of the highest-payoff upgrades a homeowner can make.
Our Main Mentone Services
Two services generate most of the calls from Mentone: attic insulation upgrades for older homes with settled or missing coverage, and spray foam for the homeowners who want a single material that air seals and insulates in one pass. Here’s what each job looks like here.
Attic Insulation in Mentone
Most Mentone attics we inspect were built for a different era, with shallow cavities and whatever insulation the original builder could install cheapest. A proper attic insulation job here means removing or topping the old material, air sealing the attic floor, and bringing the space to a level that actually handles 100°F summers and near-freezing winter nights. We match the material to the attic, blown-in fiberglass or cellulose where it makes sense, batts where the structure calls for it. See the full breakdown on our Attic Insulation in Mentone page.
Spray Foam Insulation in Mentone
Spray foam is the right call for Mentone homeowners who want air sealing and insulation handled together, particularly in vented attics, rim joists, and the hard-to-reach floor systems common in older ranch-style homes. Closed-cell foam through Icynene or Demilec adds structural rigidity and stops the air movement that settles fiberglass can’t. Open-cell foam makes sense for interior sound control and budget-conscious whole-attic applications. Read the specifics on our Spray Foam Insulation in Mentone 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 Mentone
Blown in insulation remains the most practical fix for Mentone’s older single-story homes, where attics were built shallow and the original material has long since settled or blown thin. In a town where summer attics hit 140°F and winter nights drop toward freezing, a dense, even layer of blown fiberglass or cellulose across the attic floor stops the radiant heat transfer that makes bedrooms unbearable by evening. Our Blown In Insulation service covers everything from topping off a few thin spots to a complete re-blow over air sealing, depending on what the attic actually needs.
Cellulose Insulation
Signs you need it
If you can see the tops of your ceiling joists in the attic, or the existing insulation looks like dusty gray paper instead of a thick settled layer, the cellulose is long gone and needs replacement.
What it costs in Mentone
Cellulose insulation in Mentone typically runs $1.10 to $2.00 per square foot installed, with most whole-attic jobs landing between $1,700 and $3,200 depending on depth and air sealing scope.
How we do it
We air seal the attic floor first, then blow GreenFiber cellulose to a consistent depth that hits the target R-value for Mentone’s climate, typically R-38 to R-60.
Blown In Attic Insulation
Signs you need it
Rooms directly under the attic stay hot through the evening in summer and cold all winter, and the attic floor has bare patches or insulation thinner than a few inches.
What it costs in Mentone
Blown in attic insulation in Mentone runs between $1.50 and $3.00 per square foot installed, so a typical 1,200-square-foot attic lands around $1,800 to $3,600 before any air sealing work.
How we do it
We blow loose-fill fiberglass or cellulose across the entire attic floor to a uniform depth, working around vents and can lights with blocking where code requires it.
Blown In Cellulose Insulation
Signs you need it
Your energy bills climb every summer and the attic insulation is gray, settled, or visibly compacted from decades of heat and foot traffic.
What it costs in Mentone
Blown in cellulose runs $1.10 to $2.00 per square foot in Mentone, with most complete attic re-blows totaling between $1,700 and $3,200.
How we do it
We use GreenFiber recycled-content cellulose, blown to the depth that meets the R-value target, which resists settling and fills gaps better than old batts ever could.
Blown In Fiberglass Insulation
Signs you need it
The attic has fiberglass batts that are torn, compressed, or missing in sections, and the house heats unevenly from room to room through the afternoon.
What it costs in Mentone
Blown in fiberglass insulation in Mentone averages $1.50 to $2.50 per square foot installed, bringing most full attics to around $1,800 to $3,000.
How we do it
We blow loose-fill fiberglass to the specified R-value, which fills around framing and plumbing vents far better than batt material and eliminates the gaps batts leave behind.
Loose Fill Insulation
Signs you need it
There are drafts near ceiling fixtures, the attic floor shows uneven coverage, or the existing loose fill has settled below the top of the joists.
What it costs in Mentone
Loose fill insulation in Mentone runs $1.10 to $2.50 per square foot depending on material, with whole-attic installations typically between $1,700 and $3,000.
How we do it
We blow loose fill to full depth across the attic, ensuring even coverage in the hard-to-reach perimeter areas where heat transfer is worst.
What Blown In Insulation Costs in Mentone
| Item | Typical range in Mentone |
|---|---|
| Blown in fiberglass (attic, per sq ft) | $1.50 – $2.50 |
| Blown in cellulose (attic, per sq ft) | $1.10 – $2.00 |
| Typical whole-attic job (1,200 sq ft) | $1,700 – $3,600 |
How long does blown in insulation last in Mentone?
Cellulose and fiberglass both hold their R-value for decades when installed correctly and kept dry. Mentone’s heat doesn’t degrade the material itself; settling and air movement are what reduce performance, and a properly blown dense layer resists both. Call (833) 390-3099 for an attic inspection and exact quote.
Is blown in insulation enough for Mentone’s summer heat?
Yes, when installed to the right depth, blown in insulation handles Mentone’s 100°F summers and cold winter nights. The key is hitting the correct R-value and air sealing first, because insulation without sealing leaks conditioned air and underperforms. Call (833) 390-3099 to find out what depth your attic actually needs.
Brands We Service in Mentone
We install materials from eight manufacturers, but the brands most Mentone homeowners choose are CertainTeed for loose-fill fiberglass, GreenFiber for recycled-content cellulose, and Icynene or Demilec when the job calls for spray foam. Parts and materials ship directly to Mentone from our California suppliers, which keeps most installations on a one to two day schedule once we start. See the full range on our brands page.
Pricing for Insulation Company in Mentone, CA
| Service | Typical range in Mentone |
|---|---|
| Blown in fiberglass (attic, per sq ft) | $1.50 – $2.50 |
| Blown in cellulose (attic, per sq ft) | $1.10 – $2.00 |
| Loose fill insulation (attic, per sq ft) | $1.10 – $2.50 |
| Typical whole-attic blown in job (1,200 sq ft) | $1,700 – $3,600 |
| Air sealing (attic floor, before re-blow) | $400 – $1,200 |
| Attic insulation removal (old, damaged, or vermiculite) | $1,000 – $2,500 |
| Spray foam (open-cell, per board foot) | $0.45 – $0.85 |
| Spray foam (closed-cell, per board foot) | $0.90 – $1.80 |
The two biggest price drivers in Mentone are attic depth and access, and whether air sealing is needed before the blow. Older ranch homes with low-slope roofs or tight attic hatches take longer to work in, and we always quote the full job upfront so there are no surprises on install day.
Neighborhoods We Serve in Mentone
We work all across Mentone’s 92359 zip code, from the older ranch-style streets near the 38 corridor up to the newer lots pushing toward the foothills, and everywhere between. Most of our Mentone crews can be on site for an estimate within one to two days, with installation scheduling flexible around the hotter stretches of summer.
- Mentone Heights
- Sunset Hills
- Crafton Hills foothills
- Mentone Village
- East Mentone
Service Area – Cities Near Mentone
Fountain Valley Insulation handles jobs throughout the east San Bernardino Valley and the mountain-adjacent communities. We regularly work in Redlands, CA to the west, Yucaipa, CA to the east, Highland, CA to the northwest, and Calimesa, CA further out along the I-10 corridor. If you’re in one of these towns or anywhere near Mentone, call us and we’ll schedule an estimate.
Serving Mentone, CA — Our Local Coverage Area
We’re based in the Mentone 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 Mentone
Most Mentone estimates happen within one to two business days of your call. Since our crews run through the east valley regularly, we can usually combine an estimate with a same-week installation for straightforward attic re-blows. Call (833) 390-3099 and we’ll find the next open slot.
Most blown in attic insulation and air sealing jobs in Mentone don’t require a permit, since they’re not structural changes. When spray foam is involved, or the scope includes work that touches building systems, we check county requirements and handle any paperwork before we start. We’ll tell you upfront if your job needs anything beyond the work itself.
We do both. Most Mentone calls start with the attic, since that’s where the biggest energy loss happens, but we also insulate crawlspaces, rim joists, and walls during renovations or full-house efficiency upgrades. Tell us what rooms feel wrong, and we’ll trace the problem to where the insulation is actually failing.
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 Mentone 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."
— Justin Chen"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."
— Carmen Reyes"Installed baffles at the soffits so the new insulation didn't block the ventilation, which the previous contractor apparently never considered."
— Hector Vargas