Owens Corning Blown-In Insulation in Pomona: What to Know First
We provide independent Owens Corning blown-in insulation service in Pomona, typically completing attic top-ups and dense-pack wall jobs in one day with a written price delivered before any work starts. Most Owens Corning blown-in fiberglass or cellulose jobs in a Pomona home this size run between $1,800 and $4,200 depending on attic square footage, existing depth, and whether the top plates and can lights need sealing first. This page is for homeowners who already have Owens Corning insulation in place and need a top-up, replacement, or correction of a previous install that skipped the air sealing. Call (562) 242-7569 for a free estimate with a written scope.
How Owens Corning Products Fail - and How We Fix Them
- Owens Corning AttiCat PINK Fiberglass Blown-In settling below labeled R-value. The AttiCat system - the loose-fill fiberglass blown through the red machine you see at supply houses - installs at a settled density that can drop 10-15% below its labeled R-49 in Pomona’s dry climate over five to seven years, especially when blown over an unsealed attic floor. We measure existing depth with a ruled probe, calculate actual R-value against the original bag count, and only quote a top-up after we’ve sealed the bypasses that caused the thermal loss in the first place.
- ProCat loose-fill bridging over irregular joist bays in pre-1980 Pomona ranches near Ganesha Park. The ProCat Professional Series, common in retrofit jobs, bridges across the irregular 2×4 and 2×6 joist spacing found in those ranch homes instead of filling to full depth. We pull back the existing fill, dense-pack the cavities with a tube-injection method that breaks the bridging, then cap with fresh ProCat to spec depth.
- Owens Corning EcoTouch PINK Fiberglass Batt gaps where batts were removed for wiring or ductwork and never replaced properly. Homeowners in the Lincoln Park corridor call us when their EcoTouch batts have been disturbed by solar installers or HVAC crews and stuffed back in sideways, leaving compression gaps at the eaves. We remove the damaged batts, air seal the penetrations, and blow loose-fill fiberglass to eliminate the seam lines where convection loops form.
- CertaSpray open-cell foam shrinkage at the rim joist creating a path for attic air into walls. Where Owens Corning CertaSpray was used as a flash-and-batt detail and has pulled back from studs, we see cold wall cavities in winter. We trim the shrunken foam, seal the gap with acoustical sealant, and dense-pack the stud bay with cellulose to restore the air barrier and thermal boundary in one step.
- Blown-in cellulose over Owens Corning fiberglass creating a double vapor retarder trap. When previous contractors in the Phillips Ranch area layered cellulose over existing PINK fiberglass without checking the facing, trapped moisture between the two materials degrades both. We vacuum to substrate, inspect for facing paper or vinyl, remove it if present, then reinstall with a single compatible material and proper attic ventilation path.
Our Owens Corning Blown-In Insulation Process

- 1
Call and scheduling. A live person answers, 24/7. We book a site visit in Pomona, usually within 48 hours. You receive a text with the technician’s name when they’re en route.
- 2
Blower-door test and attic inspection. We pressurize the house to measure CFM50 - the cubic feet per minute of air leakage at 50 pascals of pressure - before touching any insulation. Wes Okafor logs the starting number, then probes the attic for top plate gaps, can light bypasses, and duct boots pulling conditioned air.
- 3
Written price and scope. Under Haven Standard Clause 1, you get a flat price, written scope, and written warranty before anyone lifts a tool. No work starts without it.
- 4
Air sealing first, then insulation. We seal all bypasses with fire-rated foam, caulk, and rigid blocking where code requires. Seal the leaks first. The insulation is just the last layer of the answer.
- 5
Blown-in installation to spec. We use Owens Corning, Johns Manville, Knauf, or GreenFiber depending on your existing material and the thermal target. Every bag is counted, every depth is probed and photographed.
- 6
Final blower-door test and documentation. We run the pressurization test again, deliver the before-and-after CFM50 readings, and leave you with a Documented Photo Record of the completed work. The 365-Day Done Right Promise begins at signature.
Before
AfterWhat Owens Corning Blown-In Insulation Costs in Pomona
| Job Type | Typical Range | What Moves Price |
|---|---|---|
| Attic top-up (1,200 sq ft, R-30 to R-49) | $1,800 - $2,800 | Access difficulty, existing depth, need for baffle extension |
| Attic removal and replacement with air sealing | $3,200 - $4,800 | Contamination (rodent, smoke), deck repair, recessed can count |
| Dense-pack wall insulation (single story, 1,500 sq ft) | $2,400 - $3,600 | Wall cavity condition, siding type for access, electrical obstructions |
| Crawl space floor joist blown-in | $1,600 - $2,400 | Crawl height, vapor barrier status, joist spacing irregularity |
Price drivers specific to Pomona: homes near Ganesha Park and north of Mission Boulevard often have smaller attics with steep pitches that slow hose movement; Phillips Ranch homes from the 1980s-90s typically need more can-light sealing than newer construction. We do not quote by phone without a site visit - the attic tells us what the house needs, not the square footage on Zillow. Call (562) 242-7569 for a free estimate with a written price before any work starts.
Why Pomona Homeowners Call Topside Attic Insulation Pomona for Owens Corning Work

We’ve sealed and insulated more than 9,000 homes since 2016, every one with a written price before work started and a documented record when the crew left. Our technicians are background-checked and uniformed; they know the difference between AttiCat and ProCat density requirements without checking a cheat sheet. We publish before-and-after blower-door numbers on every applicable job so you can verify the performance change you paid for, not take our word for it.
We source materials from Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, Demilec, and GreenFiber - no proprietary lock-in means we match the right material to your existing system rather than forcing a brand match that doesn’t perform. As an independent Owens Corning service provider, we are not affiliated with or authorized by Owens Corning, which also means we are not bound to recommend their product when another material solves your problem better. The 365-Day Done Right Promise applies to all completed work, and a live person answers calls 24/7.
FAQs
No. Owens Corning’s product warranty covers manufacturing defects in the material itself, not the installation, and remains valid regardless of who installs or services it. What voids coverage is improper installation - compressing blown-in fiberglass below labeled depth, or installing over an unsealed attic floor that leads to moisture degradation. We document depth and density with photos so the installation record supports any future product claim. Call (562) 242-7569 for a free estimate - estimates are free.
We can match Owens Corning PINK fiberglass loose-fill for attic top-ups; the color is distinct but blends acceptably within a season of dust settling. For wall dense-packs, we typically recommend completing the full wall cavity rather than spot-patching, since density variation creates thermal boundaries that show on infrared. We photograph the finished attic or wall so you see the result before we leave. Call (562) 242-7569 for a free estimate - estimates are free.
Repair is cheaper when the existing material is dry, uncontaminated, and was originally installed to full depth - typically a $1,800-$2,800 top-up in Pomona. Removal and replacement runs $3,200-$4,800 but is necessary when the existing fill is rodent-soiled, smoke-damaged, or was installed over an unsealed floor that trapped moisture between layers. We probe and photograph the existing substrate before quoting so you know which category you’re in. Call (562) 242-7569 for a free estimate - estimates are free.
Most attic top-ups and air-sealing packages are completed in one day; dense-pack wall jobs or full removal-and-replacement projects typically take two days. We schedule site visits within 48 hours of your call, and a live person answers 24/7. Call (562) 242-7569 for a free estimate - estimates are free.
We use Owens Corning loose-fill fiberglass when it matches the existing system and meets the thermal target, but we are not restricted to it. We also install Johns Manville, Knauf, and GreenFiber products when they perform better for your specific assembly - for example, GreenFiber cellulose in a dense-pack wall where fire-rated ignition barrier is required. Every material choice is noted in your written scope. Call (562) 242-7569 for a free estimate - estimates are free.
Written by Wes Okafor, Owner, Topside Attic Insulation Pomona at Topside Attic Insulation Pomona, serving Pomona and nearby areas.