Insulation Company in Murrieta, CA
Blown in insulation is the fastest way to fix the punishing temperature gap in Murrieta tract homes built between 1980 and 2010. Most of these houses left the builder with R-13 to R-19 attic coverage, which is nowhere near today’s code and gets worse every year as fiberglass settles under foot traffic and HVAC service calls. We install blown in insulation in Murrieta using name-brand fiberglass and cellulose, and we also handle attic batt upgrades and spray foam for rim joists, walls, and rooflines. Call (877) 265-0627 for a free estimate.
Why Murrieta Homes Are Different
Murrieta sits in a hot inland valley where summer afternoons routinely cross 100°F and attic temperatures can reach 150°F by 3 p.m. The housing stock is dominated by 1980s to 2000s stucco-clad tract homes and Mediterranean-style two-stories with low-pitch tile roofs, almost all built under Title 24 energy rules that were far looser than today’s standard. Original attic insulation is typically R-13 to R-19, often compressed by decades of AC technicians walking through the attic and pushed aside during can light or fan installations. Older single-story ranch homes near the historic downtown core still have original batts that are decades past their rated R-value.
The result is a second-story temperature gap that Murrieta homeowners feel every evening: bedrooms 8 to 15 degrees warmer than the downstairs living room, AC units cycling nonstop between June and October, and ceiling surfaces in certain rooms reading 20°F hotter than the rest of the house on an IR camera. In tract neighborhoods off Murrieta Hot Springs Road, blown-in fiberglass routinely gets pulled into the HVAC return plenum or compacted by animal activity, leaving bare hot spots directly above the master bedroom. Upgrading to R-49+ attic insulation and sealing the attic floor is the highest-impact improvement for this specific sun load.
Our Main Murrieta Services
Most Murrieta homeowners start by asking us to fix the attic, either with dense-pack blown-in material or with spray foam in problem areas like bonus rooms and rim joists. These are the two jobs that deliver the fastest bill relief.
Attic Insulation in Murrieta
Attic work in Murrieta means pulling out settled, contaminated old fiberglass and bringing the attic up to R-49 or better. In most 1980s-to-2000s tract homes, the existing insulation is R-13 to R-19, often sunken below the top plates of the ceiling joists. We air-seal the attic floor and install new material to manufacturer spec, usually completing the whole job in one day. Attic Insulation in Murrieta

Spray Foam Insulation in Murrieta
Spray foam is the right call in Murrieta when a room has no attic above it, when rim joists leak hot air into the wall cavities, or when a bonus room over the garage never holds temperature. We install both open-cell and closed-cell systems from Icynene and Demilec, so the foam selected matches the actual application: closed-cell for roof decks and perimeter walls, open-cell for interior sound control. Spray Foam Insulation in Murrieta

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 Murrieta

Blown in insulation in Murrieta is usually the most practical upgrade for attics in 1980s-to-2000s tract homes that are still running on original R-13 to R-19 fiberglass. Loose-fill material flows around trusses, ductwork, and can-light housings that would make batts a nightmare to fit, and it covers the entire attic floor evenly so there are no bare hot spots above the master bedroom. We install blown-in fiberglass from Johns Manville and Knauf, plus GreenFiber cellulose for homeowners who want a recycled-content option, using calibrated machines that hit the exact R-value specified for the job. This is the same general method covered on our Blown In Insulation page.
Cellulose Insulation
Signs you need it
Your attic currently has thin, settled fiberglass and you want a dense, recycled-content layer that blocks airflow better than batt material.
What it costs in Murrieta
Cellulose blow-in for a typical Murrieta attic runs $1.20 to $2.50 per square foot, so a 1,500-square-foot attic lands between $1,800 and $3,750.
How we do it
We remove or level the existing material, air-seal the attic floor penetrations, then blow GreenFiber cellulose to the specified depth using a calibrated machine, checking density with a gauge card.
Blown In Attic Insulation
Signs you need it
Rooms directly under the attic are 8 to 15 degrees warmer than the rest of the house on summer afternoons, or your AC bill has spiked year over year.
What it costs in Murrieta
Blown-in attic insulation for an average Murrieta two-story costs $2,000 to $4,500 depending on attic size, access difficulty, and how much old material must be removed first.
How we do it
We vacuum out failed or animal-contaminated material, seal top plates and wire penetrations, install vent baffles, and blow new insulation to R-49 or higher, then level it with a scrim grader.
Blown In Fiberglass Insulation
Signs you need it
Your existing attic fiberglass has been compressed flat by years of HVAC service visits, leaving bare ceiling areas that read hot on an infrared scan.
What it costs in Murrieta
Blown fiberglass in Murrieta runs $1.00 to $2.00 per square foot installed, typically $1,500 to $3,000 for a standard tract-home attic.
How we do it
We blow Johns Manville or Knauf loose-fill fiberglass to the manufacturer’s specified bags-per-thousand-square-feet for the target R-value, then verify coverage with a depth ruler at multiple points.
Loose Fill Insulation
Signs you need it
Your attic has bare spots, uneven coverage, or old material that has been moved around by rodents, and you want a uniform layer installed in one day.
What it costs in Murrieta
Loose fill insulation in the Murrieta area runs from $1,200 to $3,500 depending on attic size, material choice, and whether existing material stays or goes.
How we do it
We prep the attic, seal penetrations, install any needed baffles, then blow loose fill to target depth using a calibrated machine, checking R-value with a gauge card before finishing.
What Blown In Insulation Costs in Murrieta
| Item | Typical range in Murrieta |
|---|---|
| Blown fiberglass attic (1,500 sq ft) | $1,500 – $3,000 |
| Blown cellulose attic (1,500 sq ft) | $1,800 – $3,750 |
| Remove old material and re-insulate | $2,000 – $4,500 |
Is blown in insulation worth the cost in Murrieta?
Yes, because the AC savings in a 100°F-plus climate pay back the install cost fast. Homeowners typically report a 10 to 20 percent drop in summer cooling bills after bringing an R-13 attic up to R-49. Call (877) 265-0627 for an estimate.
Can you blow insulation over existing fiberglass in a Murrieta attic?
Yes, if the existing material is clean, dry, and not compressed below the joist tops we can blow new material directly over it to reach target R-value. If it is compacted or contaminated, removal is the better play.
Brands We Service in Murrieta
We install blown-in, batt, and spray foam materials from eight manufacturers, which means we match material to the actual application instead of pushing one product. Rockwool mineral wool handles fire-resistance and sound-dampening jobs, CertainTeed covers standard batt and loose-fill work, and Icynene and Demilec cover both open-cell and closed-cell spray foam. Most materials are stocked for Murrieta trucks. See our brands.
Pricing for Insulation Company in Murrieta, CA
| Service | Typical range in Murrieta |
|---|---|
| Blown fiberglass attic | $1,000 – $2,000 per 1,000 sq ft |
| Blown cellulose attic | $1,200 – $2,500 per 1,000 sq ft |
| Attic air sealing and insulation | $1,800 – $4,500 |
| Spray foam rim joist package | $1,500 – $3,000 |
| Spray foam roof deck | $3,00 – $7,000 |
| Mineral wool batt install | $1.50 – $3.00 per sq ft |
| Fiberglass batt install | $0.80 – $1.80 per sq ft |
| Crawl space insulation | $1,200 – $3,200 |
| Soundproofing interior wall | $2.50 – $4.00 per sq ft |
Prices in Murrieta push higher when we have to remove animal-contaminated material, rebuild access hatches, or work in a low-pitch tile roof attic with tight clearance. Every quote we give is upfront and itemized, and the price we quote is the price on the invoice unless we find hidden damage you approve us to fix.
Neighborhoods We Serve in Murrieta
We run crews across Murrieta every weekday, with same-week scheduling available for most attic and blow-in jobs. Response time for a site visit is usually within two to three business days depending on the season.
- Murrieta Hot Springs
- Copper Canyon
- Bear Creek
- Central Murrieta
- Greer Ranch
Service Area – Cities Near Murrieta
Gallant Insulation Co also serves Murrieta Hot Springs, CA, Wildomar, CA, Temecula, CA, and Sedco Hills, CA. If you’re in a neighboring city and need blown in, spray foam, or attic batt work, give us a call at (877) 265-0627 and we’ll route the nearest crew to you.
Serving Murrieta, CA — Our Local Coverage Area
We’re based in the Murrieta 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 Murrieta
For most attic and blown in jobs we can have a crew on site within two to three business days, sometimes sooner during slower winter months. Spray foam estimates may take a bit longer since we scope the roofline or rim joists in person.
For straightforward re-insulation of an existing attic or adding blown-in material, no permit is typically required in Murrieta. If the work involves a new room addition or structural changes, the city may ask for a permit, and we’ll flag that during the estimate.
Yes. Many Murrieta tract neighborhoods have HOAs that restrict exterior appearance but rarely care about attic work, so interior insulation jobs usually proceed without issue. If an HOA does need documentation, we provide material specs and install details on request.
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 Murrieta Customers Say
"Spray foam in the rim joists in the basement. The cold floors above them are gone."
— Carlos Hernandez"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."
— Priya Rao"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."
— Emily Ackerman