Icynene Blown-In Insulation in Schertz: What to Know First
We provide independent Icynene blown-in insulation service in Schertz, typically completing attic jobs in one day with a written price delivered before any work starts. Most Icynene systems we encounter in this market are between 10 and 20 years old, and the honest price range for a standard attic top-up or replacement runs $1,800 to $4,200 depending on square footage and whether the existing material can stay or must come out first.
This page is for Schertz homeowners who know they have Icynene insulation in their attic, walls, or crawl space and need to add blown-in material, replace degraded product, or correct an installation that never performed as promised. If you’re in the Sedona subdivision off FM 1518, the Copper Ridge area, or anywhere in the Schertz corridor where summer attic temperatures regularly push past 140°F, the sequencing of this work matters more than the brand name on the bag. Call (830) 402-5240 for a free estimate with a written price before we start.
How Icynene Products Fail - and How We Fix Them
- Icynene Classic Max settles below labeled depth in Schertz’s heat-cycling attics. This open-cell spray foam product, common in 2008-2015 builds around Schertz, loses apparent R-value when the top coat compresses from repeated 140°F-plus daily cycles. We measure actual depth with a calibrated stick every 25 square feet, calculate the shortfall against the original specification, and blow in matching-density cellulose or fiberglass to restore the thermal barrier without disturbing the existing foam substrate.
- Icynene MD-R-200 shrinkage creates gaps at stud bays in wall systems. The medium-density closed-cell foam can pull away from framing members in our climate’s extreme humidity swings, particularly in two-story homes near Cibolo Creek where seasonal moisture differentials are sharp. We diagnose this with thermal imaging, then dense-pack the affected wall cavities with blown-in cellulose to fill the voids and restore the air barrier - a repair Icynene’s own warranty excludes after year five.
- Icynene Water Blown (WB) series absorbs attic moisture and gains weight. The water-blown formulation used in many 2010-2014 Schertz tract homes acts like a sponge when roof leaks or bathroom vent discharges introduce humidity. We remove the water-damaged sections, treat the deck for mold, air-seal the source, then blow in fresh material - never trapping wet foam under new insulation.
- Icynene LD-C-50 in cathedral ceilings loses adhesion in south-facing slopes. The light-density open-cell product, popular in Schertz’s Mediterranean-style rooflines, can release from the roof deck where surface temperatures exceed 160°F for months straight. We stabilize the remaining foam, install proper vent baffles, and blow in fiberglass to the correct depth without compressing the existing material.
- Original Icynene installations skipped top-plate sealing, making blown-in top-ups ineffective. This isn’t a product failure; it’s an installation failure we see constantly in Schertz homes built during the 2005-2012 construction rush. The foam was shot to depth but the critical junction between wall top plates and the attic floor was never sealed. We blower-door test first, seal every penetration with fire-rated caulk and foam, then blow in new material - because adding R-38 over an unsealed attic floor is money spent on the wrong problem.
Our Icynene Blown-In Insulation Process

- 1
Pre-work inspection and blower-door test. We pressurize the house and measure CFM50 - the single number that tells us how much conditioned air is escaping through the envelope. In Schertz homes with Icynene, we often see readings of 3,500-5,000 CFM50 where the foam was installed but never properly air-sealed at transitions.
- 2
Written scope and price, delivered before tools come out. Under Haven Standard Clause 1: flat price, written scope, written warranty. No exceptions. You’ll know exactly what we found, what we’ll do, and what it costs.
- 3
Air sealing of top plates, can lights, penetrations, and foam transitions. This is the step most contractors skip. We seal first, then insulate. The attic doesn’t care how thick the insulation is if the air is still moving through it.
- 4
Material selection and blown-in installation. For Icynene-compatible jobs, we typically specify Owens Corning AttiCat fiberglass or GreenFiber cellulose - never proprietary lock-in products. We match density to the application: loose-fill for attics, dense-pack for walls, conditioned-crawl specifications where moisture risk exists.
- 5
Post-install verification. Depth-stick photo log every 25 square feet, thermal imaging to confirm no voids, and a second blower-door test on applicable jobs so you see the performance change in documented numbers, not promises.
- 6
Documentation delivered: photo record, readings, warranty. You get a printed thermal-imaging summary, the post-install depth log, and the 365-Day Done Right Promise in writing before we leave.
What Icynene Blown-In Insulation Costs in Schertz
| Job Type | Typical Range | What Moves the Price |
|---|---|---|
| Attic top-up over sound Icynene (1,500-2,500 sq ft home) | $1,800 - $2,800 | Accessibility, current depth shortfall, need for air sealing first |
| Attic removal and replacement of degraded Icynene | $3,200 - $4,800 | Volume to remove, disposal fees, deck remediation, moisture damage extent |
| Dense-pack wall cavity repair (Icynene shrinkage gaps) | $2,400 - $4,200 | Number of affected bays, interior wall access vs. exterior drill-and-fill |
| Crawl space encapsulation with blown-in floor insulation | $3,800 - $6,500 | Vapor barrier needs, existing Icynene condition, pier-and-beam complexity |
These are real Schertz numbers for real jobs we’ve completed, not bait-and-switch ranges. The price moves based on what we find, not what we hope you’ll pay. Every estimate is free, and we offer a Free Second Opinion on any written estimate you’ve already received - bring us a competing quote and we’ll read it with you. Call (830) 402-5240 for yours.
Why Schertz Homeowners Call Topside Attic Insulation Schertz for Icynene Work

We’ve been working the Schertz corridor for several years now, including jobs in the Sedona subdivision where summer attic temps regularly push past 140°F before a single batt goes in. Wes Okafor built this operation on sequencing the work correctly: blower-door test first, air-sealing second, blown-in insulation third. Every completed job comes with a printed thermal-imaging summary and a post-install depth-stick photo log - documentation, not just a receipt.
We’re an independent Icynene service provider, not a manufacturer affiliate. That means we source materials from Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, Demilec, and GreenFiber with no proprietary lock-in. If your Icynene system needs a repair that Reflectix or another brand handles better, we’ll tell you straight. The 365-Day Done Right Promise applies to all work, and a live person answers calls 24/7 - no voicemail loops, no callback windows measured in business days.
FAQs
The original Icynene warranty, typically 10 years on product and 5 years on installation-related issues, has likely expired if your home was built before 2016. For newer installations, our work as an independent service provider does not void product coverage, though Icynene may not honor claims related to our modifications - we document everything so you have a clear record. Call (830) 402-5240 and we’ll review your specific installation date and warranty status.
We don’t attempt to replicate spray foam in the field - it’s a factory-controlled chemical process. For blown-in additions or repairs, we specify compatible density and R-value from Owens Corning, GreenFiber, or other brands in our multi-manufacturer lineup, with thermal imaging to verify continuity. The performance matters more than the label.
Repair is cheaper when the existing foam is dry, well-adhered, and simply under-depth - typically 40-60% less than full removal. Replacement becomes the better value when the product is water-damaged, chemically degraded, or installed without proper air sealing underneath. We make this call with a camera and a moisture meter, not a sales pitch. Call (830) 402-5240 for a free inspection.
Most Icynene blown-in jobs in Schertz are scheduled within 3-5 business days of estimate approval, with same-day emergency service available for water-damaged situations where mold risk is active. We’ll give you a specific date and a named technician, plus a text when they’re on the way.
We are not an authorized Icynene dealer and do not stock OEM spray foam kits. For blown-in insulation work, we specify quality third-party materials from our multi-brand lineup - Owens Corning, GreenFiber, Knauf - selected for compatibility with your existing system and the specific Schertz climate conditions your attic faces. Every material choice is documented in your written scope.
Ready to get a written price before any work starts? Call Topside Attic Insulation Schertz at (830) 402-5240 for a free estimate. We’ll inspect your Icynene system, run a blower-door test if the job warrants it, and deliver a flat price with a written scope and warranty - Haven Standard Clause 1, no exceptions.
Written by Wes Okafor, Owner, Topside Attic Insulation Schertz at Topside Attic Insulation Schertz, serving Schertz and nearby areas.