Insulation Company in Pomona, CA
Blown in insulation is the most cost-effective retrofit for most Pomona homes, especially the 1950s and 1960s tract houses where attic floors are sitting at R-11 or less. Our crews work in Pomona weekly, and we know exactly what this valley does to a house: attics that hit 140°F in August, Santa Ana winds that dry out old fiberglass, and energy bills that climb every summer. Hollywood Insulation Co installs blown in insulation, attic insulation, and spray foam across Pomona, matched to the home rather than to whatever’s on the truck. Call (866) 605-6949 for a free estimate.
Why Pomona Homes Are Different
Pomona’s housing stock runs on two tracks. The postwar tracts built between 1950 and 1975 dominate the neighborhoods north of Holt Avenue and east toward Ganesha Hills, most of them single-story, wood-framed, with vented attics and insulation that was thin the day it went in. Downtown and the streets around Lincoln Park hold the older stuff: citrus-era bungalows from the 1910s and 1920s with balloon framing, minimal wall cavities, and attics that may never have been insulated at all. In both cases, the original fiberglass batts, when present, have usually settled to three or four inches of R-value that doesn’t do much against a Pomona summer.
The climate is the other half of the story. Pomona sits in the inland Pomona Valley, east of the coastal marine layer and well past the point where ocean air reaches reliably. Summer highs in the 90s and 100s are normal, and attic temperatures routinely climb past 140°F. That heat radiates down through the ceiling all afternoon and into the evening, which is why so many Pomona homeowners tell us their AC runs constantly and the house still feels warm by 5 p.m. The fix is almost always in the attic: more R-value, proper air sealing, and in many cases a radiant barrier to reflect heat before it ever enters the conditioned space. Winters are mild, so this is a cooling-load market. The insulation we install in Pomona is doing its hardest work in July and August.
One more local reality: multifamily rental properties and working-class owner-occupied homes dominate large parts of Pomona. Budget matters. That’s exactly why blown-in cellulose and blown-in fiberglass are the most common jobs here. They deliver real R-value per dollar, and they go in fast. The smoggy heat of the San Gabriel Valley also means that air sealing matters more than it does in cleaner coastal air; a properly sealed attic keeps out heat, dust, and the fine particulate that drifts east from the LA basin and settles into attics through every gap and crack.
Our Main Pomona Services
Most Pomona homeowners call us first about two things: bringing an aging, under-insulated attic up to current code, and sealing the building envelope with spray foam where air leakage is the bigger problem. Both services have dedicated Pomona pages that go deeper on local conditions, pricing, and what to expect.
Attic Insulation in Pomona
Attic insulation is the highest-impact upgrade for a typical Pomona tract home from the 1960s or 1970s. These houses were built when R-11 was considered adequate; today we recommend R-38 to R-49 in a vented attic, and the difference in summer comfort is immediate. We inspect the existing batts, check for collapsed eave vents, evaluate whether the attic needs air sealing before new insulation goes in, and then match the material to the house: blown-in fiberglass, cellulose, or batt products from CertainTeed and Johns Manville when the attic layout calls for it. Get the local details on our Attic Insulation in Pomona page.

Spray Foam Insulation in Pomona
Spray foam earns its keep in Pomona on two fronts: air sealing and R-value per inch. Older Pomona homes leak air badly through top plates, recessed lights, plumbing penetrations, and the gaps where walls meet ceilings. Open-cell Icynene or Demilec foam seals those leaks and insulates in one pass, which makes a measurable difference in how long the AC runs from June through September. Closed-cell foam adds structural rigidity and moisture resistance, useful on bungalow remodels and room additions. See Spray Foam Insulation in Pomona for material options, local cost ranges, and a breakdown of open-cell versus closed-cell in 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 Pomona
Blown in insulation is the straightest line from an overheated, under-insulated Pomona attic to lower cooling bills and a more comfortable house. In the 91766 and 91768 ZIP codes especially, where postwar tract homes dominate and attic floors often carry just a few inches of settled fiberglass, blowing in fresh material brings the attic to R-38 or R-49 in a single day. This is our most-requested service in Pomona because it’s fast, it’s cost-effective, and it works with the existing vented attic design rather than against it. We install both cellulose and fiberglass blown-in systems, choosing the material based on the attic’s condition, the homeowner’s budget, and how the house is built. Learn more on our Blown In Insulation service hub.
Cellulose Insulation
Signs you need it
You need cellulose insulation if your attic floor shows bare spots, the existing material has settled to the tops of the joists, or you can feel a heat radiating from the ceiling of your Pomona home on hot afternoons.
What it costs in Pomona
Blown-in cellulose in a Pomona attic typically runs $1.20 to $2.50 per square foot, with most jobs falling between $1,800 and $3,500 depending on depth and attic size.
How we do it
We air-seal the major penetrations, lay down any required baffles at the eave vents, then blow GreenFiber cellulose to the specified depth using a calibrated machine so the R-value is consistent across the whole attic floor.
Blown In Fiberglass Insulation
Signs you need it
You need blown-in fiberglass if your attic has old, compressed fiberglass batts that have collapsed against the eave vents, or if you want a dust-controlled, R-value-per-dollar upgrade over what’s there now.
What it costs in Pomona
Blown-in fiberglass in a Pomona attic typically costs $1.15 to $2.30 per square foot, with most full-attic jobs landing between $1,600 and $3,400.
How we do it
We remove or level the failing existing material, install eave-vent baffles, and blow loose-fill fiberglass to a consistent depth that achieves R-38 to R-49 across the attic floor.
Loose Fill Insulation
Signs you need it
You need loose fill insulation if your Pomona attic has odd framing, tight corners, or shallow joist bays that make batt installation impractical, or if the existing loose fill has settled and thinned out over the decades.
What it costs in Pomona
Loose fill insulation installed to code depth in a Pomona attic generally falls between $1,400 and $3,200, depending on the attic size and the material selected.
How we do it
We prep the attic, seal bypasses, set depth markers, and blow loose fill to a uniform thickness across every bay, including the edges and corners where batts never quite fit.
What Blown In Insulation Costs in Pomona
| Item | Typical range in Pomona |
|---|---|
| Blown-in fiberglass (attic, R-38) | $1.15 – $2.30 per sq ft |
| Blown-in cellulose (attic, R-38) | $1.20 – $2.50 per sq ft |
| Full loose fill attic (1,000 – 1,500 sq ft) | $1,400 – $3,500 |
How much does blown in insulation cost in Pomona?
Most blown in insulation jobs in Pomona run between $1,400 and $3,500 total, depending on attic square footage, material choice, and how much prep work the attic needs. Call (866) 605-6949 for an exact quote, free of charge.
Is blown in insulation better than batts for a Pomona attic?
For most Pomona attics, yes. Blown in material fills the entire joist bay, including around framing and odd angles, where batts leave gaps. It also installs faster and usually costs less per R-value than batt work.
Brands We Service in Pomona
We install GreenFiber cellulose, CertainTeed fiberglass, and Icynene and Demilec spray foam systems in Pomona homes. We keep the most-specified products stocked locally, so most jobs don’t wait on a special order. See our brands for the full range we carry.
Pricing for Insulation Company in Pomona, CA
| Service | Typical range in Pomona |
|---|---|
| Blown-in fiberglass (attic) | $1.15 – $2.30 per sq ft |
| Blown-in cellulose (attic) | $1.20 – $2.50 per sq ft |
| Loose fill insulation (attic) | $1,400 – $3,200 total |
| Full blown-in attic (1,000 – 1,500 sq ft) | $1,400 – $3,500 total |
What pushes a Pomona job toward the top of the range is attic access, how much old material has to be removed or leveled first, and whether the home has can lights or other penetrations that need air sealing before insulation goes in. We give a written, line-item price before any work starts, so the number we quote is the number you pay.
Neighborhoods We Serve in Pomona
We work throughout Pomona, from the postwar tracts north of the 10 to the older bungalow streets around downtown and Lincoln Park. Most appointments in the 91766, 91767, 91768, and 91769 ZIP codes can be scheduled within a few days, and many blown-in attic jobs are completed same-day once we’re on site.
- Lincoln Park Historic District
- Ganesha Hills
- Phillips Ranch
- North Pomona
- Westmont
Service Area – Cities Near Pomona
Beyond Pomona proper, our insulation crews regularly work in the surrounding valley communities. We serve La Verne, CA to the north, Walnut, CA to the west, Covina, CA to the northwest, and Claremont, CA at the eastern edge of the valley. If you’re in a neighboring city, the same pricing and same-day scheduling generally apply.
Serving Pomona, CA — Our Local Coverage Area
We’re based in the Pomona 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 Pomona
Most estimates in Pomona are scheduled within two to three business days, and once a job is approved, blown-in attic work can often be completed the same week or even same day. Call (866) 605-6949 to check current availability.
Most insulation-only retrofit work in Pomona does not require a city permit, since it’s classified as a maintenance upgrade rather than a structural change. If your project involves removing drywall or changing framing, that’s different, and we’ll tell you before work begins.
Yes. A large share of Pomona’s housing is multifamily rental, and we work with property owners and managers on attic insulation and air sealing across duplexes, fourplexes, and small apartment buildings. We can schedule work around tenants and provide before-and-after documentation.
If your Pomona home is hot in summer, cold in winter, or just costing more to keep comfortable than it should, the attic is the first place to look. Call Hollywood Insulation Co at (866) 605-6949 for a free estimate. We’ll inspect what’s up there, tell you honestly what it needs, and install the right material for the house, the climate, and your budget.
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 Pomona 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