Insulation Company in Moreno Valley, CA
Thermal Insulation Co is a dedicated insulation contractor serving Moreno Valley homeowners with blown-in insulation, attic upgrades, and spray foam systems matched to the inland heat load this city actually gets. Moreno Valley is not a coastal market. Homes here sit through 100°F+ summers and attic temperatures that climb past 150°F, which means insulation decisions carry more weight than they do 50 miles west. If your rooms heat unevenly or your AC runs constantly from June through October, the answer usually starts in the attic or the wall cavities. Call (855) 382-3451 for a free estimate and we’ll tell you which method actually makes sense for your home.
Why Moreno Valley Homes Are Different
Moreno Valley’s housing stock was largely built between the 1980s and 2000s, when the city was one of the fastest-growing suburbs in the country. That means most homes are wood-frame tract construction with stucco exteriors and tile or composition roofs. The original attic insulation in many of these houses was builder-grade R-11 to R-19 fiberglass batt, which met code at the time but sits far below what modern Title 24 expects for the inland basin. Two decades of 150°F attic heat have done the rest. In the big subdivisions off the 60 freeway and across the east side, we routinely find batts that have sagged, compressed, and pulled away from the eaves. Compressed fiberglass loses most of its R-value. So an Moreno Valley home built in 1995 often performs like it has R-8 in the attic, not the R-19 stamped on the original paperwork. The dry inland air and occasional Santa Ana wind events add another layer: gaps around can lights, plumbing penetrations, and top plates pull attic heat into the living space or push conditioned air out, and the insulation you do have can’t fix that by itself.
Our Main Moreno Valley Services
Most Moreno Valley homeowners call us about two things: re-insulating an attic that’s been cooking for 20-plus years, and sealing the building envelope with spray foam where air leakage is the bigger problem. Each one has its own dedicated page here.
Attic Insulation in Moreno Valley
Attic work in Moreno Valley is the highest-impact insulation job most homes will ever get. Because there’s no marine layer to soften the solar load, attic temperatures here regularly exceed 150°F, and that heat radiates down into the living space all afternoon and evening. We address it by removing or topping up the old material, air sealing the attic floor, and installing batts or blown-in product at a depth that matches what this climate actually demands. Older tract homes off streets like Ironwood and Nason often need a full top-up plus a radiant barrier conversation. See Attic Insulation in Moreno Valley for the full scope and pricing.

Spray Foam Insulation in Moreno Valley
Spray foam does two jobs at once in Moreno Valley: it insulates and it air seals. That matters in a dry inland climate where small gaps around rim joists, wall top plates, and recessed cans let conditioned air escape and hot attic air get pulled in. Closed-cell foam also adds structural rigidity and resists moisture, which helps in older wood-frame homes where the building envelope has never been touched since the day it was framed. See Spray Foam Insulation in Moreno Valley for details on open-cell versus closed-cell for this climate.

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 Moreno Valley
Blown-in insulation is the most common retrofit we perform in Moreno Valley because it’s the fastest way to bring an under-insulated attic up to a level that actually handles the inland heat. Homes built in the 1980s and 1990s here typically have thin, compressed fiberglass batts, and blowing in loose-fill over the top is less invasive than removing everything and starting over. Blown-in also fills the irregular cavities, odd corners, and narrow eaves that batts never quite cover, so the coverage is continuous instead of patchy. This is the service we recommend for most tract homes in 92551, 92552, 92553, and 92554 that still have their original builder-grade attic insulation. You can read more about the method on our Blown In Insulation page.
Cellulose Insulation
Signs you need it
You can see the tops of your ceiling joists in the attic, meaning you have roughly R-11 to R-19 of cover when Moreno Valley needs R-38 or higher.
What it costs in Moreno Valley
Cellulose blown-in attic work in Moreno Valley typically runs $1.50 to $3.50 per square foot depending on depth and prep, with most full attics landing between $1,800 and $5,000.
How we do it
We air seal the attic floor first, then blow GreenFiber recycled cellulose to the target depth using a two-person crew with one running the hose and one monitoring depth with a ruler, not a guess.
Blown In Attic Insulation
Signs you need it
Rooms below the attic run 5 to 10 degrees warmer than the rest of the house by late afternoon, and the AC runs almost nonstop from June through September.
What it costs in Moreno Valley
Blown-in attic insulation in Moreno Valley runs $1.50 to $3.50 per square foot installed, so a typical 1,500-square-foot attic lands in the $2,250 to $5,250 range.
How we do it
We remove or flatten the old batts where they’re compressed, seal penetrations and top plates, then blow loose-fill fiberglass or cellulose evenly to a measured depth across the entire attic floor.
Blown In Cellulose Insulation
Signs you need it
Your existing attic insulation is thin, dusty, and settled, and you want a higher-performing top-up without tearing out what’s already there.
What it costs in Moreno Valley
Blown-in cellulose in Moreno Valley runs $1.50 to $3.50 per square foot, with depth and attic access being the two biggest variables on final price.
How we do it
We run GreenFiber cellulose through a high-volume blower and lay it to a consistent depth, which in Moreno Valley means R-38 to R-49 depending on the home and your energy goals.
Blown In Fiberglass Insulation
Signs you need it
You prefer a fiberglass product rather than cellulose, or your attic has existing fiberglass batts you want topped up with a matching material.
What it costs in Moreno Valley
Blown-in fiberglass in Moreno Valley runs $1.50 to $3.50 per square foot installed, putting most whole-attic jobs between $2,000 and $5,000.
How we do it
We blow loose-fill fiberglass from Owens Corning, Johns Manville, or Knauf to a measured depth, covering the attic floor evenly and leaving no thin spots or gaps along the eaves.
What Blown In Insulation Costs in Moreno Valley
| Item | Typical range in Moreno Valley |
|---|---|
| Blown-in attic insulation (per sq ft) | $1.50 – $3.50 |
| Whole-attic blown-in job (1,500 sq ft) | $2,250 – $5,250 |
| Attic air sealing before blow-in | $400 – $1,200 |
How long does blown-in insulation last in Moreno Valley?
Cellulose and fiberglass loose-fill both hold their R-value for decades if they stay dry, but Moreno Valley’s extreme attic heat can compress some products over time. A properly installed top-up should last 20 to 30 years before you’d consider adding again.
Is blown-in insulation enough for a Moreno Valley summer, or do I also need a radiant barrier?
Blown-in insulation at R-38 or higher handles conductive heat transfer, but a radiant barrier addresses the radiant heat that makes attic surfaces so hot. Many Moreno Valley homes benefit from both, and we’ll tell you honestly if your attic would see real savings from adding a barrier. Call (855) 382-3451 for a straight answer.
Brands We Service in Moreno Valley
We install products from Owens Corning, Johns Manville, Knauf, and GreenFiber, among others, and we stock the materials for Moreno Valley jobs locally so scheduling stays tight. Because we carry competing lines, the recommendation is based on your home’s R-value target and moisture conditions, not on what we happen to have left in the warehouse. See our brands for the full material list.
Pricing for Insulation Company in Moreno Valley, CA
| Service | Typical range in Moreno Valley |
|---|---|
| Blown-in attic insulation (per sq ft) | $1.50 – $3.50 |
| Whole-attic blown-in job (1,500 sq ft) | $2,250 – $5,250 |
| Attic air sealing before blow-in | $400 – $1,200 |
| Cellulose attic top-up | $1,800 – $5,000 |
| Spray foam (open-cell, per sq ft) | $1.50 – $3.50 |
| Spray foam (closed-cell, per sq ft) | $2.50 – $5.00 |
| Attic insulation removal | $1.50 – $3.00 per sq ft |
| Attic batt installation (per sq ft) | $1.00 – $2.50 |
What pushes price up in Moreno Valley is almost always attic access and the condition of what’s already up there. A low-pitch roof with a tight hatch and 20-year-old compressed batts takes more labor than a clean, open attic that’s ready to blow. We give upfront pricing before any work starts, and the number we quote is the number you pay.
Neighborhoods We Serve in Moreno Valley
We work across the full Moreno Valley footprint, from the older subdivisions around the 60 to the newer tracts on the east side. Most jobs in Moreno Valley can be scheduled within a few business days, and emergency attic work is available when the heat makes it urgent.
- Sunnymead Ranch
- Hidden Springs
- East Moreno Valley
- Box Springs
- March Air Reserve Base area
Service Area – Cities Near Moreno Valley
We also serve the communities around Moreno Valley, including March Air Force Base, CA, Woodcrest, CA, Colton, CA, and Loma Linda, CA. The same crews and the same material lines cover all of these areas, so scheduling and pricing stay consistent.
Serving Moreno Valley, CA — Our Local Coverage Area
We’re based in the Moreno Valley 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 Moreno Valley
Most Moreno Valley estimates are scheduled within two to four business days, and we can typically start the work within a week of your approval. During peak summer months, demand is higher, but we hold slots for heat-emergency cases where the attic is making the house unsafe or unlivable. Call (855) 382-3451 and we’ll give you the next available date.
Most insulation retrofits in existing homes do not require a permit in Moreno Valley, but any job that involves structural changes or new construction does. We handle the determination for you and tell you upfront if anything needs to go through the city. You won’t be surprised by paperwork at the end of the job.
We cover the entire city, including ZIP codes 92551, 92552, 92553, and 92554, plus the surrounding communities listed in our service area. There’s no minimum job size, so even a single-room top-up or a small air-sealing project is worth calling about.
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 same-day.
- 4You approve before work beginsNothing starts until you say go.
What Moreno Valley 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."
— Christine Park"Handled the utility rebate paperwork, which knocked a real amount off the final cost."
— Chris Kowalski"Plastic laid from the front door to the attic hatch and they vacuumed the hallway afterward."
— Gabriela Rodriguez