Icynene Blown-In Insulation in Glendale: What to Know First
We provide independent Icynene blown-in insulation service in Glendale, typically completing attic jobs in one day and dense-pack wall work in two. Most Icynene systems we encounter run between $2,800 and $5,400 for a full attic treatment, and we put that price in writing before any work starts. This page is for homeowners who already have Icynene insulation and need it topped up, replaced, or supplemented with blown-in material, or for buyers of older Glendale homes where the Icynene original install has settled or degraded. Call (213) 474-3828 for a free estimate with a written scope.
How Icynene Products Fail - and How We Fix Them
- Icynene Classic Max settling in attic floors. The open-cell foam was sprayed at 3.5 inches in 2018 and now measures closer to 2 inches, with an effective R-value drop from R-14 to about R-8. We remove the degraded layer, air-seal the deck with closed-cell flash, then blow in cellulose to R-38 per Title 24.
- Icynene MD-C-200 shrinkage at rim joists. The medium-density closed-cell formulation can pull away from sill plates in Glendale’s dry summer heat cycles, creating convection loops. We cut back the failed sections and dense-pack the cavities with cellulose, which maintains contact as framing moves.
- Icynene H2Foam Lite overspray blocking soffit venting. Found in Verdugo Woodlands ranch remodels from 2019-2021, the low-density open-cell completely filled eave chutes. We extract the blockage, install proper baffles, and blow in fiberglass to maintain the vent channel while hitting R-38.
- Icynene LD-C-50 degradation from roof leaks. The light-density open-cell wicks water like a sponge; we’ve pulled saturated sections in Glendale hills homes where tile underlayment failed. We remove the damaged foam, treat the sheathing, and blow in mold-resistant fiberglass as the replacement insulation.
- Icynene Classic Max incompatible with new HVAC duct routing. Homeowners adding mini-splits find the original foam blocks wire and line-set paths. We surgically remove the obstruction, reseal the penetration with closed-cell, and blow in cellulose to restore thermal continuity without a full tear-out.
Our Icynene Blown-In Insulation Process
- 1
blower-door test before anything moves. We pressurize the house and record CFM50 and ACH50 baseline numbers. In a 1970s Glendale ranch last month, the reading was 3,800 CFM50 with the Icynene attic floor still in place.
- 2
Written scope and price. Under Haven Standard Clause 1, you get a flat price, written warranty, and documented photo record authorization before anyone lifts a tool.
- 3
Air sealing first. Seal the bypasses first. Insulation over air leaks is just expensive noise reduction. We seal top plates, can lights, and penetrations with targeted foam and gasketed covers.
- 4
Material selection. For Icynene supplement jobs, we typically specify Owens Corning AttiCat fiberglass, GreenFiber cellulose, or Knauf Jet Stream depending on cavity depth, moisture history, and whether the original Icynene is staying or coming out.
- 5
Installation and verification. We blow to depth, verify with depth markers and thermal imaging, then run a post-installation blower-door test. That same ranch finished at 2,100 CFM50, a 45% reduction.
- 6
Documentation delivery. You leave with the printed pre- and post-installation report, photos, and the 365-Day Done Right Promise in writing.
Before
AfterWhat Icynene Blown-In Insulation Costs in Glendale
| Job Type | Typical Range | What Moves the Price |
|---|---|---|
| Icynene attic top-up (fiberglass over existing foam) | $2,800 - $4,200 | Attic square footage, accessibility, whether original foam needs selective removal |
| Icynene removal + full cellulose replacement | $4,500 - $7,200 | Volume of foam to extract, disposal fees, air sealing extent |
| Dense-pack wall supplement (Icynene gaps filled) | $3,200 - $5,400 | Wall cavity count, balloon-frame vs. platform construction, interior or exterior access |
| Rim joist remediation (MD-C-200 failures) | $1,800 - $3,100 | Linear feet, basement vs. crawl space access, sheathing condition |
These are real numbers for Glendale’s market, where Title 24 compliance and permit requirements add documentation steps that cheaper bids sometimes skip. We also provide a Free Second Opinion on any written estimate you bring us. Call (213) 474-3828 for an exact quote, estimates are free.
Why Glendale Homeowners Call Topside Attic Insulation Glendale for Icynene Work
We’ve been running jobs across Glendale since 2016, including older ranch-style homes near the Verdugo Woodlands where dense-pack cellulose in balloon-frame walls is still the right call after Icynene shrinkage. Wes Okafor does a blower-door test before a single bag of insulation is opened, and customers leave with a printed pre- and post-installation report that shows the ACH50 numbers side by side. The 365-Day Done Right Promise applies to all completed work, and a live person answers calls 24/7. We also service Reflectix systems and source materials from Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, Demilec, and GreenFiber, so there’s no proprietary product lock-in forcing a solution that doesn’t fit your house.
FAQs
No, topping up or supplementing Icynene with blown-in material does not void the original spray-foam warranty, provided the original installation was completed by a certified applicator and the new work does not disturb the warranted foam. We photograph the original Icynene label and lot numbers before starting so warranty documentation stays intact. As an independent Icynene service provider, we document everything but do not represent the manufacturer. Call (213) 474-3828 for a free estimate.
Yes, blown-in cellulose at R-3.7 per inch and fiberglass at R-2.5 per inch can achieve equivalent or higher total R-values than typical Icynene installs when blown to proper depth. A 3.5-inch Icynene Classic Max layer at R-14 is easily exceeded by 10 inches of cellulose at R-38. The key difference is air sealing, which is why we seal first, then insulate. Call (213) 474-3828 for a free estimate.
Repair is cheaper when the Icynene is structurally sound but thin or patchy, typically 40-60% less than full removal. Removal becomes the better value when the foam is water-damaged, heavily shrunken, or blocking ventilation, because patching degraded foam wastes money on a failing substrate. We assess with a borescope inspection and give you both numbers in writing. Call (213) 474-3828 for a free estimate.
Most Icynene supplement and top-up jobs in Glendale start within 3-5 business days of estimate approval. Dense-pack wall work or full removals requiring tenting and ventilation may schedule 7-10 days out. Emergency situations, water-damaged foam with active leaks, we prioritize same-week. A live person answers calls 24/7 to check current availability. Call (213) 474-3828.
We do not use Icynene-sourced foam for blown-in supplement work because the product category is different, blown-in cellulose and fiberglass come from Owens Corning, Knauf, and GreenFiber. For small spray-foam touch-ups where closed-cell is needed to seal around penetrations, we use quality aftermarket foam with equivalent density and R-value, documented in your written scope. We are not an authorized Icynene dealer and do not claim manufacturer endorsement. Call (213) 474-3828 for a free estimate.
Written by Wes Okafor, Owner, Topside Attic Insulation Glendale at Topside Attic Insulation Glendale, serving Glendale and nearby areas.