Demilec Blown-In Insulation in Pflugerville: What to Know First
As an independent Demilec service provider, we handle blown-in insulation for Demilec systems in Pflugerville homes, typically scheduling within 48 hours and completing most jobs in a single day. Most attic insulation jobs in a home this size run between $1,800 and $3,400, with written pricing delivered before any work starts. This page is for homeowners who already have Demilec insulation products and need service, top-up, or replacement - not a sales pitch for new installs. Call (737) 259-8352 to speak with a live person, 24/7.
How Demilec Products Fail - and How We Fix Them
- Demilec Heatlok Soya HFO settling in Pflugerville’s 100°F+ attics. The open-cell spray foam substrate beneath blown-in top-ups can shrink and pull away from rafters after three to five Texas summers, creating voids where the blown layer sinks. We strip the compromised top-up, re-adhere the Heatlok substrate with compatible HFO adhesive, then re-blow to original R-value spec.
- Demilec Sealection 500 overspray contamination blocking dense-pack wall cavities. When Sealection was used as a flash-and-batt base in Pflugerville’s 2018-2021 construction boom, overspray on interior wall studs prevents proper friction-fit of subsequent blown cellulose. We scrape and plane the overspray to within 1/4 inch of stud face, then dense-pack with GreenFiber or JM blown cellulose to 3.5 lbs/ft³.
- Demilec 500 open-cell water absorption in Stone Hill Town Center corridor homes. The clay-heavy soils in this Pflugerville zone wick moisture into crawl spaces; when 500-series open-cell is used below grade as a base for blown-in top-ups, it can hold 15% moisture by weight. We remove the wet assembly, install a proper vapor barrier, then replace with closed-cell base and new blown-in.
- Demilec Eco-Pur 2.0 density mismatch with retrofit blown-in. Eco-Pur’s higher density (2.0 lbs/ft³) creates a thermal bridge when homeowners add standard loose-fill fiberglass on top without accounting for the compressed boundary layer. We calculate the corrected R-value stack, remove incompatible material, and re-blow with Knauf Jet Stream Ultra at calibrated depth.
- Demilec Agribalance off-gassing in conditioned attic assemblies. The bio-based polyol in early Agribalance batches can emit trace amines when heated above 140°F in Pflugerville attics, degrading adjacent blown-in cellulose binders. We test with VOC meter, isolate affected areas, and replace with inert JM Climate Pro blown fiberglass.
Our Demilec Blown-In Insulation Process
- 1
Call and schedule. A live person answers, notes your Demilec product line if known, and books a diagnostic window. You get a text when your technician is en route.
- 2
Blower-door test and attic inspection. We pressurize the house and record CFM50 baseline. The technician photographs every Demilec-labeled substrate, notes series numbers, and maps voids or moisture intrusion.
- 3
Written price before any work starts. We specify OEM Demilec-compatible materials versus quality aftermarket alternatives (Reflectix radiant barrier, for instance, if your assembly needs it). You approve in writing; no work begins until then.
- 4
Air sealing first, then insulation. Top plates, can lights, and penetrations get sealed with compatible tape or foam. The report tells you what the house does. The insulation changes what the house does. Those are two different conversations.
- 5
Blown-in installation and post-test. We blow to calibrated depth, verify with depth markers, then run a second blower-door test. You receive both readings, the photo record, and the written scope before we leave.
- 6
365-Day Done Right Promise. Under Haven Standard: if the CFM50 doesn’t hold or the insulation settles beyond spec, we return and make it right.
Before
AfterWhat Demilec Blown-In Insulation Costs in Pflugerville
| Scenario | Typical Range |
|---|---|
| Blown-in top-up over intact Demilec substrate (1,200-1,800 sq ft attic) | $1,800 – $2,600 |
| Demilec substrate repair + blown-in replacement (partial) | $2,400 – $3,400 |
| Full removal of failed Demilec assembly + re-blow | $3,200 – $4,800 |
| Dense-pack wall remediation (Sealection overspray cleanup) | $2,800 – $4,200 |
What moves the price: accessibility (steep Pflugerville roof pitches add labor), extent of substrate failure, and whether the original Demilec install included proper air sealing. Homes in the Blackhawk and Avalon communities often have complex rooflines that extend setup time. Call (737) 259-8352 for an exact quote - estimates are free, and we provide a Free Second Opinion on any written estimate you’ve already received.
Why Pflugerville Homeowners Call Topside Attic Insulation Pflugerville for Demilec Work
We’ve been in and out of attics throughout Pflugerville’s Stone Hill Town Center corridor often enough that the regional heat load patterns up there are not a surprise to us. Wes Okafor trained in building systems technology at Kennedy-King College, where instructors drilled air-sealing fundamentals before insulation ever came up - that sequence still governs every job we run. We don’t carry every brand on the truck; we carry what works, including Reflectix radiant barrier when a Demilec assembly needs it. The 365-Day Done Right Promise applies to all completed work, and a live person answers calls 24/7. No voicemail loops. No callback windows measured in business days.
FAQs
Demilec’s original install warranty typically covers defects in materials and application, not subsequent modifications by independent service providers. We document our work with photos and written scope so any future warranty claim can distinguish original defects from our repairs. Call (737) 259-8352 if you need help interpreting your original paperwork.
We source compatible materials from our supplier network; for blown-in top-ups, we typically use Owens Corning, Johns Manville, Knauf, or GreenFiber products calibrated to match your Demilec substrate’s thermal properties. We specify exactly what we’re using in your written price before any work starts.
Repair is cheaper when the substrate is intact and only the blown-in layer has settled or degraded - typically 60-70% of the jobs we see in Pflugerville. Full replacement makes sense when the Demilec foam itself has failed due to moisture, shrinkage, or chemical degradation. We tell you which category you’re in after the blower-door test and attic inspection, not before.
Most jobs are completed in one day, with scheduling within 48 hours of your call. Complex removals or dense-pack wall work may extend to two days. We don’t book more than we can finish.
You get the before-and-after blower-door numbers in writing - CFM50 reduction, typically 30-50% in a properly sealed Pflugerville home of this era. The photo record shows what we sealed. The numbers show whether it held.
Written by Wes Okafor, Owner, Topside Attic Insulation Pflugerville at Topside Attic Insulation Pflugerville, serving Pflugerville and nearby areas.