Insulation Company in Citrus, CA
Citrus sits in the 91702 ZIP at the base of the San Gabriel Mountains, where summer temperatures regularly climb past 100 degrees and attic spaces bake far hotter. For the tract and ranch homes built here between the 1940s and 1970s, blown in insulation is usually the first fix we recommend. Those original attics were often under-insulated from day one, and decades of Santa Ana winds and UV exposure have only made the problem worse. Hollywood Insulation Co has served Citrus since 2018, matching the right insulation method to each home rather than pushing one product. Call (866) 605-6949 for a free estimate.
Why Citrus Homes Are Different
The insulation conversation in Citrus is not about freezing winters. It is about managing radiant heat gain from a roof deck that gets hammered by direct sun from late morning through sunset. Homes near the Angeles National Forest boundary face the added factor of dry Santa Ana winds, which pull moisture out of exposed insulation and push hot, dusty air through every gap in the building envelope. The housing stock compounds the issue: mid-century tract homes and postwar ranches in Citrus typically have shallow, low-pitch attic spaces with original R-19 fiberglass batts that have settled, compressed, or been disturbed by decades of electrical work and remodeling. Many still carry ductwork running through unconditioned attic space, which means every degree of attic heat transfers directly into the air your AC just cooled. Insulation here is less about one upgrade and more about correcting an entire thermal profile that was never designed for modern cooling loads.
Our Main Citrus Services
Most Citrus homeowners call us about two things: bringing attic insulation up to a level that actually fights San Gabriel Valley heat, and using spray foam to seal the gaps that let hot dry air pour in. Here is what each involves in this area.
Attic Insulation in Citrus
Attic insulation in Citrus means working with shallow roof pitches, limited access hatches, and framing that often dates to the Truman administration. We assess what is already up there, check for settling and rodent damage, and build the R-value up to what makes sense for a climate where cooling drives the bill. Rockwool and Owens Corning batts are common choices here, especially when we are insulating around older wiring that needs some breathing room. For homes near the foothills where Santa Ana winds sift through every vent, the air sealing we do alongside the insulation matters just as much as the material itself. Attic Insulation in Citrus gets into the specifics of what your home likely needs.

Spray Foam Insulation in Citrus
Spray foam is the answer for Citrus homes with impossible-to-reach attic corners, knee walls, or duct runs that leak cooled air into a 140-degree attic. Closed-cell foam from Icynene or Demilec creates an air barrier that batt insulation cannot match, which matters here because the problem is not just trapped heat but hot air infiltration around every penetration. On older ranch homes with original framing, open-cell foam can also help with the sound transfer that comes from living on tight lots. The material cost is higher, but the per-degree-of-comfort return in a triple-digit climate is hard to argue with. Spray Foam Insulation in Citrus covers the two systems we install and when each fits.

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 Citrus
Blown in insulation is often the most practical retrofit for Citrus homes built between the 1940s and 1970s. Those attic cavities were rarely filled to modern standards, and the loose fill approach lets us reach every corner, bay, and odd-shaped space without tearing out drywall. In a climate where attic temperatures can exceed 140 degrees on a July afternoon, a properly dense layer of blown-in fiberglass or cellulose creates a thermal break that keeps that heat from radiating down into living spaces. It is also one of the fastest ways to cut a summer cooling bill in a 91702 home. For more on how we approach this method, see our Blown In Insulation page.
Cellulose Insulation
Signs you need it
You can see the tops of your ceiling joists in the attic, or your rooms heat up by late afternoon even with the AC running.
What it costs in Citrus
Cellulose insulation in Citrus typically runs $1.20 to $2.30 per square foot installed, depending on depth and access.
How we do it
We remove any compromised material, prepare the attic cavity, and dense-pack GreenFiber cellulose to the R-value target we set for your ceiling and climate.
Blown In Attic Insulation
Signs you need it
Your attic insulation is original to the home, or it has settled below the top of the framing in large sections.
What it costs in Citrus
Blown in attic insulation across a typical Citrus attic usually lands between $1,800 and $3,400 total, with depth and square footage moving the number.
How we do it
We run a hose into the attic, build up the loose fill in even passes, and check the final depth with gauge markers so every section meets the R-value we quoted.
Blown In Cellulose Insulation
Signs you need it
Your energy bills climb every summer and rooms on the sunny side of the house are consistently 5 to 10 degrees warmer than the rest.
What it costs in Citrus
Blown in cellulose in Citrus ranges from $1.20 to $2.30 per square foot installed, which includes our full prep work and cleanup.
How we do it
We inspect the attic floor for gaps and bypasses first, seal what we can reach, then blow in GreenFiber cellulose to a consistent, verified depth.
Loose Fill Insulation
Signs you need it
You have patchy insulation coverage, visible gaps around light fixtures and plumbing penetrations, or old batts that have been pushed aside over the years.
What it costs in Citrus
Loose fill insulation in Citrus typically runs $1.20 to $2.30 per square foot, depending on whether we are topping off existing insulation or starting fresh.
How we do it
We loosen and redistribute any salvageable material, remove what is shot, then blow a fresh layer of loose fill fiberglass or cellulose across the whole attic floor.
What Blown In Insulation Costs in Citrus
| Item | Typical range in Citrus |
|---|---|
| Blown in attic insulation (full attic) | $1,800 – $3,400 |
| Cellulose per square foot | $1.20 – $2.30 |
| Blown in fiberglass per square foot | $0.90 – $1.80 |
Can blown in insulation be installed over existing insulation in Citrus?
Yes, we can blow new material over old insulation if the existing layer is dry, free of mold, and not compressed. We check for rodent activity and electrical issues first. Call (866) 605-6949 for a free attic inspection.
Is cellulose or fiberglass better for a Citrus attic?
Cellulose resists airflow better, which matters in Santa Ana wind conditions and against radiant gain. Fiberglass is lighter and less dusty during install. We match the material to your attic’s condition and your budget.
Brands We Service in Citrus
We do not tie our recommendations to one manufacturer. In Citrus attics we regularly install Owens Corning and Johns Manville fiberglass, GreenFiber cellulose for eco-conscious homeowners, and Icynene and Demilec spray foam systems when air sealing is the priority. See our brands for the full lineup.
Pricing for Insulation Company in Citrus, CA
| Service | Typical range in Citrus |
|---|---|
| Blown in attic insulation (full attic) | $1,800 – $3,400 |
| Cellulose per square foot | $1.20 – $2.30 |
| Blown in fiberglass per square foot | $0.90 – $1.80 |
| Loose fill insulation per square foot | $1.20 – $2.30 |
| Spray foam insulation | $2.50 – $5.00 per sq ft |
| Attic insulation (full attic) | $2,200 – $4,100 |
| Batt insulation per square foot | $0.80 – $1.70 |
| Mineral wool per square foot | $1.60 – $2.90 |
Prices in Citrus move most on two things: attic access and the condition of what is already up there. Shallow, low-pitch roofs near the foothills make for slow going, and if we are pulling out old compressed batts or cleaning up after rodents, the labor component rises. What we quote is what you pay, and we walk the attic with you before any work starts.
Neighborhoods We Serve in Citrus
We work throughout the 91702 ZIP, from the older ranch blocks near the Azusa border to the foothill-adjacent streets that climb toward the Angeles National Forest boundary. Most Citrus homes are close enough that we can schedule a same-week attic assessment without trouble.
- Citrus Heights tract near Citrus Avenue
- Foothill corridor homes backing up to the national forest edge
- Ranch-style subdivisions east of Barranca Avenue
- Mid-century blocks around the Citrus and Covina line
- Postwar tracts west toward Azusa
Service Area – Cities Near Citrus
We run crews into Azusa, CA and Irwindale, CA regularly, along with Covina, CA and Glendora, CA. The same team that handles Citrus attics covers these neighboring cities, so scheduling is straightforward and the truck is already stocked for the housing stock in this part of the San Gabriel Valley.
Serving Citrus, CA — Our Local Coverage Area
We’re based in the Citrus 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 Citrus
We can usually be at a Citrus home within 24 to 48 hours for an attic assessment, and same-week start dates are common outside the hottest months. Call (866) 605-6949 in the morning and we can often schedule something for that afternoon.
For most re-insulation and blown-in jobs in Citrus, no permit is required since you are upgrading an existing condition rather than adding square footage. If the project involves structural changes or is part of a larger remodel, your general contractor will pull what is needed.
We cover the full 91702 ZIP, including the foothill-adjacent streets near the Angeles National Forest boundary and the flats closer to the Azusa and Glendora edges. If you are not sure whether you are in range, call (866) 605-6949 and we will confirm on the spot.
Ready to get your Citrus attic working against the heat instead of feeding it? Call Hollywood Insulation Co at (866) 605-6949 for a free, no-pressure estimate. We will walk your attic, explain exactly what you have and what it needs, and give you a straight number before any work begins.
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 30–60 min.
- 4You approve before work beginsNothing starts until you say go.
What Citrus 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."
— Cole Sullivan"Found and sealed a gap around the chimney chase that was basically an open chimney to the attic."
— Brandon Wong"Work is good and the house is noticeably more comfortable. There was insulation debris left in the hall closet under the attic access that I had to clean up."
— Miguel Garcia