Demilec Wall Insulation in Georgetown: What to Know First
We provide independent Demilec wall insulation service in Georgetown, Texas, with most injection foam and drill-and-fill jobs scheduled within three to five business days and completed in a single day. Our written price - flat, itemized, delivered before any work starts - typically runs $2,800 to $5,400 for a standard 2,000-square-foot Georgetown home with Demilec open-cell or closed-cell systems, depending on wall cavity depth and whether we need to address prior shrinkage or adhesion failure. This page is for homeowners who already have Demilec product in their walls and need it repaired, upgraded, or replaced with compatible material. Call (254) 970-2136 for a free estimate with a written price you can compare.
How Demilec Products Fail - and How We Fix Them
- Demilec Sealection 500 open-cell shrinkage in Sun City Georgetown stucco homes. The 0.5-lb density foam can pull 3-8% from stud faces over five to seven Texas summers, creating thermal bypass channels we detect with infrared. We remove the compromised core through 5/8-inch drill patterns, then reinject with Demilec Heatlok HFO High Lift or a compatible 2.0-lb closed-cell alternative that won’t shrink under Georgetown’s 105°F+ August wall-cavity temperatures.
- Demilec Heatlok XT closed-cell delamination from OSB in newer builds near the San Gabriel River corridor. High exterior humidity combined with interior AC loading creates vapor-drive pressure that breaks the foam-to-sheathing bond. We cut access, scrape failed material to substrate, apply a vapor-adjusted primer, and reinstall with Heatlok HFO or an equivalent HFO-blown closed-cell with higher adhesive shear values for this specific climate.
- Demilec 500 Series injection foam settling in balloon-framed vintage homes near Southwestern University. Pre-1950s two-story construction with continuous stud bays lets gravity pull low-density foam downward over time, leaving 18-24-inch gaps at top plates. We verify with borescope inspection, then dense-pack with GreenFiber cellulose or reinstall with higher-yield Heatlok HFO using staged lifts to prevent settlement.
- Demilec Sealection Agribalance odor retention in interior soundproofing applications. The bio-based content can trap cooking and pet VOCs in shared townhouse walls, particularly in multi-family builds near the Georgetown Square. We extract affected foam, seal the cavity with a vapor-retarding primer, and reinstall with Rockwool Comfortbatt or a synthetic closed-cell alternative that doesn’t off-gas or absorb odor.
- Demilec Heatlok Soya HFO boardstock incompatibility with retrofit injection. Some Georgetown homeowners attempt DIY injection into walls originally fitted with Demilec rigid board, creating air gaps at butt joints. We remove the board system entirely, seal all joints and penetrations with one-part polyurethane, then install a continuous spray or dense-pack system with documented blower-door verification.
Our Demilec Wall Insulation Process

- 1
Call and scope. A live person answers 24/7. We schedule a site visit, and Wes Okafor or a named technician arrives with a thermal camera, borescope, and blower-door rig.
- 2
Diagnostics and documentation. We test existing Demilec product for adhesion, density, and R-value degradation. Thermal images and blower-door numbers are recorded - the pre-job baseline.
- 3
Written price and material selection. We specify OEM Demilec replacement or a compatible alternative (Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, or GreenFiber) based on failure mode, budget, and warranty requirements. No work starts without a signed, itemized scope.
- 4
Air sealing first. Seal the holes first. Then we talk about R-value. Every top plate, penetration, and electrical box gets foam-sealed before new insulation enters the cavity.
- 5
Installation and real-time verification. Injection foam is staged in lifts; dense-pack is metered to 3.5 pounds per cubic foot. We photograph every wall bay and conduct mid-job thermal scanning.
- 6
Final test and documentation. Post-job blower-door test, second thermal sweep, and a written report with before-and-after numbers, photos, and the 365-Day Done Right Promise warranty. The crew cleans; you keep the documentation.
Before
AfterWhat Demilec Wall Insulation Costs in Georgetown
| Scenario | Typical Range | What Moves the Price |
|---|---|---|
| Demilec open-cell repair, 1-2 walls, partial extraction | $2,800-$3,900 | Cavity depth, stucco vs. siding access, extent of shrinkage |
| Demilec closed-cell replacement, full exterior envelope | $4,200-$5,400 | Sheathing condition, HFO vs. legacy blowing agent, lift staging |
| Demilec to alternative material (Rockwool/cellulose retrofit) | $3,100-$4,600 | Removal labor, disposal, new air-sealing detail |
| Interior soundproofing, Demilec extraction and replacement | $2,400-$3,800 | Party wall access, odor remediation, finish repair |
Three factors push any job toward the high end: stucco exterior requiring surgical patch-and-match, second-story work over 16 feet, and homes where previous DIY foam has blocked proper cavity access. We do not surcharge for weekend scheduling or for travel within Georgetown city limits. Every estimate includes the Documented Photo Record at no additional cost. Call (254) 970-2136 - the written price is free, and we offer a Free Second Opinion on any competing written estimate.
Why Georgetown Homeowners Call Topside Attic Insulation Georgetown for Demilec Work

We’ve sealed and insulated over 9,000 homes since 2016, and a measurable share of those were Demilec jobs where the original installer had moved on or the warranty had expired without recourse. As an independent Demilec service provider, we carry no manufacturer obligation to push new product lines - we match the fix to the failure. Our technicians are background-checked, uniformed, and trained on Demilec’s specific density and adhesion profiles; when Demilec stock is backordered (it happens with Heatlok HFO in peak season), we pivot to equivalent materials from Reflectix or our other supplier relationships without delaying your job. The 365-Day Done Right Promise applies to every wall we touch, and the before-and-after blower-door numbers are yours to keep, whether you stay in the home or sell it next year.
FAQs
Most original Demilec warranties on residential wall foam are limited to material defect and require installation by a Demilec-certified contractor to remain valid. As an independent Demilec service provider, our work does not carry the OEM warranty, but we provide our own 365-Day Done Right Promise on labor and material performance - documented in writing before work begins. Call (254) 970-2136 and we’ll review your original paperwork with you.
Yes. R-value is a measured property, not a brand feature. We specify replacement material by the inch to meet or exceed your existing Demilec assembly, whether that’s open-cell at R-3.7 per inch or closed-cell at R-6.0-R-7.0 per inch, and we verify with thermal imaging after installation. For an exact match quote, call (254) 970-2136 - estimates are free.
Repair is viable when shrinkage or settlement is localized to one or two wall bays and the remaining foam retains adhesion and rated density. Full replacement is necessary when delamination exceeds 30% of the cavity surface, when odor or moisture damage is present, or when the original product has degraded below R-3.0 per inch in open-cell assemblies. We borescope and thermal-scan to give you a data-based recommendation, not a sales pitch. Call (254) 970-2136 to schedule.
Most Demilec wall insulation projects are scheduled within three to five business days, with single-day completion for standard residential scope. Complex extractions or full-envelope replacements may run two days. We do not quote availability we cannot meet. Call (254) 970-2136 for current scheduling.
You receive a written final invoice matching your pre-job written price, a Documented Photo Record of all wall bays before and after, and on applicable jobs, before-and-after blower-door readings showing CFM50 reduction. This is standard on every Demilec wall insulation job we complete in Georgetown - no request needed.
Ready to fix your Demilec wall insulation? Call (254) 970-2136 for a free estimate with a written price before any work starts. We answer live, 24/7.
Written by Wes Okafor, Owner, Topside Attic Insulation Georgetown at Topside Attic Insulation Georgetown, serving Georgetown and nearby areas.