Insulation Company in Murrieta, CA
Blown in insulation is the most common call we get from Murrieta homeowners, and for good reason. The city’s 1990s and 2000s tract homes came with builder-grade fiberglass that settles, thins, and stops doing its job right around the time attic temperatures start hitting 140°F every summer. We’re North Tustin Insulation, an insulation-only contractor serving Murrieta and the Temecula Valley, and we match the material to your home, not the other way around. Call (877) 265-5712 for a free estimate.
Why Murrieta Homes Are Different
Murrieta sits in the hot inland Temecula Valley, where summer days routinely pass 100°F and attic spaces can climb to 150°F. That heat gain is the single biggest driver of insulation work here. The housing stock compounds it: most Murrieta homes are Mediterranean or Spanish-style stucco tract homes built between the 1990s and 2010s, with tile roofs and attached garages. Builders insulated to code minimums of the era, typically R-13 in walls and R-19 to R-30 in ceilings. Twenty or thirty years later, that fiberglass has settled, been walked on by cable installers, or pulled back during remodels. You end up with a home that looks fine from the street but bleeds conditioned air through the attic. In newer subdivisions across 92562 and 92563, we regularly find vaulted ceilings with dangerously thin coverage over the garage, which is the classic Murrieta retrofit job. Coastal San Diego County can get away with marginal attic insulation because the marine layer keeps attics cooler. Murrieta cannot.
Our Main Murrieta Services
Two services dominate the insulation conversation in Murrieta: attic insulation and spray foam. Here’s what each one looks like on a Murrieta home.
Attic Insulation in Murrieta
Most Murrieta attics were built with R-19 to R-30 fiberglass batts or blown-in material that has since settled and thinned. On a 100°F day, a poorly insulated attic radiates heat down through the ceiling for hours after sunset, and the air conditioner never catches up. We inspect the existing coverage, air-seal the bypasses around can lights and top plates, then bring the attic up to a level that actually makes a difference for Riverside County summers. Tile roofs and stucco construction mean attic access is usually the most practical retrofit path, not opening walls. Learn more about Attic Insulation in Murrieta.

Spray Foam Insulation in Murrieta
Spray foam earns its keep in Murrieta when homeowners want air sealing and insulation in one pass. Open-cell foam works well on the underside of the roof deck, keeping the whole attic space closer to the home’s conditioned temperature, which matters when your attic is 140°F. Closed-cell foam makes sense for garage ceilings, bonus rooms, and anywhere moisture or space constraints matter. We carry Icynene and Demilec spray foam systems, so the recommendation is driven by the home’s construction, not by whichever foam happened to be on the truck. Read more about 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 is the workhorse retrofit for Murrieta’s 1990s and 2000s tract homes. On those sun-baked tile-roof houses, old blown-in fiberglass settles and thins over garages and vaulted ceilings, leaving rooms that feel ten degrees hotter than the rest of the house in August. We use blown-in cellulose and fiberglass to restore consistent ceiling coverage, often topping up over settled cavities and adding a radiant barrier where the attic heat gain is worst. This is the core of what we do for Blown In Insulation in Murrieta.
Cellulose Insulation
Signs you need it
Rooms directly under the attic stay hot long after sunset, or you can see bare drywall between settled fiberglass batts from the attic hatch.
What it costs in Murrieta
Blown cellulose for an attic typically runs $1.20 to $2.10 per square foot of attic floor in Murrieta, depending on depth and access.
How we do it
We air-seal the ceiling plane first, then blow GreenFiber or standard cellulose to the target R-value, checking depth markers every few feet.
Blown In Fiberglass Insulation
Signs you need it
Your attic has old, compressed pink or yellow fiberglass that measures well under current recommended depth, and your cooling bills climb every summer.
What it costs in Murrieta
Blown fiberglass in Murrieta attics usually runs $1.00 to $1.90 per square foot, with exact pricing set by target R-value and attic accessibility.
How we do it
We blow fiberglass over the existing layer after air-sealing, building to the R-value your ceiling needs for inland Riverside County heat.
What Blown In Insulation Costs in Murrieta
| Item | Typical range in Murrieta |
|---|---|
| Blown cellulose per square foot | $1.20 – $2.10 |
| Blown fiberglass per square foot | $1.00 – $1.90 |
| Attic air sealing before blowing | $400 – $1,200 |
Is blown in insulation worth it in Murrieta heat?
Yes. Attics in Murrieta hit 140°F plus in summer, and settled or thin ceiling insulation forces your AC to work against that heat all afternoon. A top-up pays back fastest here.
Can you blow insulation over old fiberglass in a Murrieta attic?
Most of the time, yes. We air-seal first, then blow cellulose or fiberglass over the existing layer as long as it’s dry and not moldy. Call (877) 265-5712 for a free attic check.
Brands We Service in Murrieta
We carry eight nationally recognized insulation brands across every major category, so the material recommendation fits the home. On Murrieta jobs you’ll most often see CertainTeed and Owens Corning fiberglass, our brands include GreenFiber recycled cellulose and Icynene or Demilec spray foam for air-sealing work. Stock arrives fast, and typical turnaround on a blown-in job is one day.
Pricing for Insulation Company in Murrieta, CA
| Service | Typical range in Murrieta |
|---|---|
| Blown cellulose attic insulation | $1.20 – $2.10 per sq ft |
| Blown fiberglass attic insulation | $1.00 – $1.90 per sq ft |
| Attic air sealing | $400 – $1,200 |
| Attic insulation removal (old or damaged) | $1.50 – $3.00 per sq ft |
| Spray foam insulation | $2.50 – $6.50 per sq ft |
| Fiberglass batt installation | $0.80 – $1.70 per sq ft |
| Radiant barrier installation | $0.60 – $1.20 per sq ft |
| Whole-attic air sealing + insulation package | $2,000 – $5,500 |
Prices in Murrieta push toward the upper end of these ranges when attics have tight access, vaulted ceilings, or old insulation that needs removal first. We quote upfront, and the number you get is the number you pay.
Neighborhoods We Serve in Murrieta
We work across Murrieta’s master-planned subdivisions, from the newer builds east of I-215 to the established tract neighborhoods near Murrieta Hot Springs Road. Most jobs are scheduled within a few days, and summer attic work is always booked early.
- Murrieta Hot Springs area
- Copper Canyon
- Central Murrieta / 92562
- French Valley (92563)
- Bear Creek
Service Area – Cities Near Murrieta
North Tustin Insulation serves Murrieta and the surrounding Temecula Valley communities, including Murrieta Hot Springs, CA, Wildomar, CA, Temecula, CA, and Sedco Hills, CA. If you’re just over the city line, we’re still close enough to quote and schedule quickly.
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
Most Murrieta attic top-ups are scheduled within a few days. Summer is our busiest season across the Temecula Valley, so call (877) 265-5712 early if your ceiling rooms are already uncomfortable.
Interior attic and garage insulation work rarely needs HOA approval in Murrieta, since nothing changes on the exterior. If your project involves a visible change, we can provide a work description for your association.
Yes. Even newer Murrieta homes often have code-minimum ceiling insulation and unsealed attic bypasses. We upgrade homes from every building era in 92562, 92563, and 92564.
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 Murrieta Customers Say
"Spray foam in the rim joists in the basement. The cold floors above them are gone."
— Bethany Ziegler"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."
— Nathan Padgett"Found and sealed a gap around the chimney chase that was basically an open chimney to the attic."
— Gabriela Herrera