Icynene Blown-In Insulation in Pomona: What to Know First
We provide independent Icynene blown-in insulation service in Pomona, typically completing attic jobs in one day with a written price before any work starts. Most Icynene systems we encounter are older open-cell or closed-cell spray foam installations that need compatible blown-in top-ups, dense-pack wall retrofits, or full removal and replacement when the original product has degraded. Call (562) 242-7569 for a free estimate with upfront pricing.
This page is for Pomona homeowners who have Icynene insulation in their attic or walls and need to add blown-in cellulose, fiberglass, or dense-pack material without compromising what is already there. We are not affiliated with or authorized by Icynene; we are an independent Icynene service provider with hands-on experience across the Pomona Valley, including the older ranch stock near Ganesha Park where we have logged more thermal bypasses than we could count in a season.
How Icynene Products Fail - and How We Fix Them
- Icynene Classic Max (open-cell) shrinkage from attic heat cycling. Pomona’s inland valley temperatures swing 40°F or more between July days and nights, and Classic Max installed before 2018 can pull away from rafter bays, leaving gaps that look intact from the attic hatch but read as major leaks on a blower-door test. We map the shrinkage with thermal imaging, remove the compromised sections, and dense-pack the cavity with blown-in cellulose at 3.5 pounds per cubic foot so the wall or roof performs to its labeled R-value.
- Icynene MD-C-200 (closed-cell) moisture lock in south-facing walls. The high perm rating of MD-C-200 can trap solar-driven moisture against sheathing in Pomona’s intense afternoon sun, especially in homes built between 2010 and 2016. We do not blow new insulation over wet foam; we cut out the affected panels, let the assembly dry verified with a moisture meter, then install blown-in fiberglass with a vented rainscreen detail where code allows.
- Icynene LD-C-50 (low-density open-cell) dusting and settling in horizontal applications. LD-C-50 was sometimes blown into attic floors as a hybrid system, but at 0.5 pounds per cubic foot it lacks the density to resist air movement long-term. We find it compressed to half its original thickness in roughly one-third of Pomona attics we inspect. Our fix is full removal, thorough air sealing of top plates and can lights, then a fresh blown-in cellulose cap at proper depth for the DOE climate zone.
- Icynene H2Foam Lite water absorption after roof leaks. H2Foam Lite is marketed as hydrophobic, but prolonged saturation from a compromised roof vent or valley failure changes its thermal properties permanently. We have pulled saturated H2Foam Lite from three homes near Lincoln Park in the past two years where the owner did not realize the roof leak had reached the insulation. We remove the water-damaged foam, repair the air barrier continuity, and replace with blown-in fiberglass that does not hold moisture.
- Icynene spray foam incompatible with subsequent blown-in top-ups. Some homeowners in Pomona’s 1980s subdivisions had Icynene installed in the 2010s, then later hired a contractor to blow cellulose over it without checking chemical compatibility. Certain Icynene formulations can off-gas acetic acid when covered with borated cellulose in hot attic conditions. We test a sample first, and if incompatibility shows, we use blown-in fiberglass or install a physical separator before the cellulose goes in.
Our Icynene Blown-In Insulation Process
- 1
Call and scheduling. A live person answers 24/7. We book a site visit, and you get a text when your technician is en route.
- 2
Blower-door test and thermal imaging. We pressurize the house and record CFM50 - a single number showing how much conditioned air escapes through the building envelope. This establishes the baseline before any material touches your attic or walls.
- 3
Air sealing first. We seal top plates, recessed can lights, plumbing and electrical penetrations, and the attic hatch with rigid cover and weatherstrip. Seal the leaks first. The insulation is just the last layer of the answer.
- 4
Parts and material selection. For Icynene compatibility, we specify blown-in cellulose from GreenFiber or blown-in fiberglass from Owens Corning or Johns Manville, depending on what tests clean for your specific foam formulation. We also carry Reflectix radiant barrier for hybrid systems where it makes sense.
- 5
Installation and density verification. We blow to labeled depth and density, spot-checking with a core cutter in cellulose jobs or a depth gauge in fiberglass. Dense-pack walls get a resistance test to confirm 3.5 pounds per cubic foot minimum.
- 6
Final blower-door test and documentation. We run the pressurization test again, print the before-and-after numbers, and add them to your Documented Photo Record with thermal images and a written scope. You get the folder before we leave.
Before
AfterWhat Icynene Blown-In Insulation Costs in Pomona
Most Icynene-related blown-in jobs in Pomona run between these ranges:
| Scenario | Typical Range |
|---|---|
| Attic top-up over intact Icynene (cellulose, 1,200 sq ft) | $1,800 - $2,800 |
| Attic top-up over intact Icynene (fiberglass, 1,200 sq ft) | $1,600 - $2,400 |
| Partial Icynene removal + air sealing + fresh blown-in | $3,500 - $5,500 |
| Dense-pack wall retrofit (single story, 2,000 sq ft home) | $4,200 - $6,800 |
| Full Icynene removal, air sealing, replacement with blown-in | $6,500 - $10,000 |
What moves the price: accessibility (steep roof pitch, tight crawl), amount of existing Icynene to remove, extent of air sealing required, and whether we find moisture damage once we open the cavity. We give you a flat written price before any work starts - Haven Standard Clause 1 - and we offer a Free Second Opinion on any written estimate you bring us. Call (562) 242-7569 for your exact number; estimates are free.
Why Pomona Homeowners Call Topside Attic Insulation Pomona for Icynene Work
We have sealed and insulated 9,000+ homes since 2016, every one with a written price first and a documented record at the end. On Icynene jobs, we publish before-and-after blower-door numbers so you can verify the performance change, not just take our word for it. Our technicians are background-checked and uniformed, and they know the difference between Classic Max and MD-C-200 without checking a manual. If something is not right, our 365-Day Done Right Promise means we make it right - backed by a written warranty you receive before anyone lifts a tool. We also service Reflectix and other brands, so we are not locked into one product line and can recommend what actually fits your house.
FAQs
It can, if the work is done by an unauthorized contractor who disturbs the original foam or uses incompatible materials. Icynene’s limited warranty typically covers product defect only, not installation error, and it does not extend to subsequent modifications by third parties. We document our material compatibility testing and our scope of work in writing, so you have a clear record of what was done and why. Call (562) 242-7569 if you want us to review your original Icynene documentation with you.
Yes, though the assembly performs differently. Blown-in cellulose at proper depth achieves comparable R-value per inch to Icynene open-cell, but the critical factor is air sealing - a loose-fill material without a sealed air barrier will underperform a tight spray foam job. That is why we air seal first and verify with a blower-door test, so the labeled R-value is the R-value you actually get.
Most attic jobs are completed in one day; dense-pack wall retrofits or full removal-and-replace jobs typically take two. We stock common blown-in materials from Owens Corning, Johns Manville, Knauf, and GreenFiber, so we are not waiting on a special order. Call (562) 242-7569 to check availability - estimates are free and we answer live 24/7.
Repair is cheaper when the foam is intact, dry, and properly adhered - usually a top-up runs $1,600-$2,800. Removal and replacement makes sense when we find shrinkage, moisture damage, or chemical incompatibility with new material; those jobs start around $6,500. We will tell you which category you are in after the site inspection, not after we start billing hours.
You receive a written scope of work, a written warranty under our 365-Day Done Right Promise, before-and-after blower-door readings on applicable jobs, and a Documented Photo Record with thermal images and installation photos. This is standard on every job, not available on request - Haven Standard: Have it in writing.
Written by Wes Okafor, Owner, Topside Attic Insulation Pomona at Topside Attic Insulation Pomona, serving Pomona and nearby areas.