Icynene Blown-In Insulation in Cedar Park: What to Know First
We provide independent Icynene blown-in insulation service in Cedar Park, typically completing attic jobs in one day with same-week scheduling. Most Icynene retrofits in a 2,000-square-foot Cedar Park home run between $2,800 and $5,200 depending on whether the attic needs air sealing first, and we put that price in writing before any work starts. This page is for homeowners who already have Icynene spray foam in their walls or roofline and need blown-in cellulose or fiberglass added to the attic floor, or who are topping off existing blown-in that has settled below R-38. If you’re seeing uneven temperatures between rooms or your summer electric bills are climbing in the Buttercup Creek or Ranch at Deer Creek areas, call us at (737) 245-6428 for a free estimate with written pricing.
How Icynene Products Fail - and How We Fix Them
- Icynene Classic Max settling in vaulted ceilings. This open-cell foam was sprayed in thousands of Cedar Park homes built 2012-2018, and it shrinks 5-10% over the first decade as off-gassing completes. We find it pulling away from rafter bays in neighborhoods like Twin Creeks, leaving thermal bypasses. We remove the degraded sections, re-seal with targeted closed-cell foam, then blow in fiberglass to restore the full R-value without trapping moisture against the deck.
- Icynene MD-R-200 moisture retention in vented attics. This medium-density closed-cell line performs well in unvented assemblies but was occasionally misapplied in traditionally vented Cedar Park attics where humid outdoor air hits the cool foam surface. The result is surface condensation that degrades adjacent blown-in cellulose. We diagnose this with infrared during our pre-install infiltration test, strip the wet material, and specify a vented-appropriate blown-in system - usually treated cellulose with a vapor-smart strategy.
- Icynene ProSeal Eco missing coverage at top plates. Even good spray foam jobs have gaps where trades ran plumbing or electrical after the foam crew left. We find these with smoke pencil and blower-door-directed diagnostics, then dense-pack the cavities with blown-in fiberglass or cellulose rather than re-foaming, which saves the homeowner 40-60% versus a full foam touch-up.
- Icynene LD-C-50 dusting and powdering in crawl spaces. This low-density product oxidizes faster when exposed to the alkaline soils common in Cedar Park’s limestone-heavy areas. The surface degrades to a powder that contaminates any blown-in insulation layered over it. We encapsulate the remaining foam with a vapor barrier, then install new blown-in only after the substrate is stabilized.
- Icynene H2Foam Lite thermal drift from UV exposure. In homes with gable-end windows or reflective light pipes, this water-blown foam can yellow and lose R-value on exposed surfaces. We see this in Cedar Park’s newer builds with decorative attic windows. Our fix is a radiant barrier overlay plus fresh blown-in top-up, not foam replacement, because the core insulation remains sound.
Our Icynene Blown-In Insulation Process

- 1
Pre-install infiltration test. We run a blower-door test - a pressurization reading that shows, in one number, how much conditioned air your building envelope is losing. For Icynene homes, we pay special attention to whether the original foam was specified as an air barrier or just insulation, because that changes what we seal before blowing anything in.
- 2
Written scope and price. Under Haven Standard Clause 1, you get a flat price, written scope, and written warranty before anyone lifts a tool. For Icynene jobs, this includes a photo map of every gap or degradation we found and the specific blown-in product we’re proposing - cellulose, fiberglass, or dense-pack wall material.
- 3
Air sealing first. We seal top plates, can lights, and penetrations before any insulation goes in. Seal the leaks first. Then insulate. The order matters more than the product. On Icynene homes, this often means foaming the gaps the original spray crew missed rather than blowing insulation over them.
- 4
Blown-in installation with density verification. We install to the manufacturer’s specified pounds-per-square-foot, checking with a scale and depth gauge as we work. For Icynene retrofits, we verify that new material doesn’t bridge across foam surfaces in a way that traps moisture.
- 5
Post-test and documentation. We run a second blower-door test and hand you the before-and-after ACH50 numbers - the pressure-to-airflow figure that tells you exactly how leaky the envelope was. Every job closes with a Documented Photo Record, including infrared images of the completed coverage.
- 6
365-Day Done Right Promise activation. Your written warranty and our contact information go in a folder you keep. If it’s not done right, we make it right.
What Icynene Blown-In Insulation Costs in Cedar Park
| Job Type | Typical Range | What Moves the Price |
|---|---|---|
| Attic blown-in top-up over existing Icynene (R-30 to R-49) | $2,800 - $4,100 | Accessibility, current depth, whether air sealing is needed first |
| Icynene removal + replacement with blown-in in same cavity | $4,500 - $7,200 | Cavity size, degradation extent, disposal requirements |
| Dense-pack wall insulation (Icynene gaps filled with blown-in) | $3,200 - $5,800 | Wall area, interior or exterior access, finish repair scope |
| Full attic system: seal, Icynene remediation, blown-in to R-49 | $6,500 - $9,400 | Square footage, roof pitch, ventilation modifications |
These are real numbers for Cedar Park’s market, not teaser rates. We also offer a Free Second Opinion on any written estimate - bring us a competing quote and we’ll read it with you. Call (737) 245-6428 for your exact written price.
Why Cedar Park Homeowners Call Topside Attic Insulation Cedar Park for Icynene Work

We’ve sealed and insulated over 9,000 homes since 2016, and the Icynene jobs stick in our memory because they require reading what the original installer did before deciding what we do next. Wes Okafor runs a pre-install infiltration test on every job - measuring how much conditioned air a house is leaking before a single batt goes in - because he learned that discipline at Olive-Harvey College’s building science program before most Texas crews had heard the term. Our technicians are background-checked and uniformed, and a live person answers calls 24/7. We carry Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, Demilec, and GreenFiber materials, plus Reflectix when radiant barrier integration makes sense, so we’re not pushing one product because it’s the only one on our truck. Every job ends with documented evidence: photos, blower-door numbers, and a written record of what was done.
FAQs
No, adding blown-in insulation to an adjacent space - like an attic floor below a foamed roofline - does not void Icynene’s product warranty, though modifying the foam itself without factory-approved materials can. We work as an independent Icynene service provider and document our scope so there’s no ambiguity about what we touched and what we didn’t. Call (737) 245-6428 if you want us to review your original Icynene documentation before we quote.
Most Icynene blown-in jobs are scheduled within three to five business days, and emergency situations - like wet insulation from a roof leak - get same-day or next-day response. A live person answers our line 24/7, so you’re not waiting through callback windows measured in business days.
Repair is usually 30-50% less expensive than full removal and replacement, but only makes sense if the foam is structurally sound and the gaps are accessible. We find partial degradation in about 60% of Cedar Park Icynene jobs over eight years old, and we quote both options in writing so you can compare actual numbers, not guesses.
We use OEM Icynene materials when we’re touching existing foam - compatibility matters for adhesion and chemical stability. For the blown-in component, we specify the best-fit product from our multi-brand inventory based on your assembly type and budget, not brand loyalty. We don’t carry proprietary lock-ins.
The fastest check is a blower-door test combined with infrared imaging, which we perform on every estimate. Properly installed Icynene in an unvented attic should show minimal thermal bypassing and an ACH50 under 3.0 in a home this size. If your numbers are worse, the foam was likely misapplied or incomplete. We show you the images and explain what they mean before any work is proposed.
Ready for a written price before any work starts? Call (737) 245-6428 for your free Icynene blown-in insulation estimate in Cedar Park. We’ll run the infiltration test, show you the photos, and put the scope and price in writing - Haven Standard Clause 1, no exceptions.
Written by Wes Okafor, Owner, Topside Attic Insulation Cedar Park at Topside Attic Insulation Cedar Park, serving Cedar Park and nearby areas.