Demilec Insulation Removal & Replacement in Leander: What to Know First
We provide independent Demilec insulation removal and replacement in Leander, typically completing attic jobs in one to two days with same-day diagnostics available. Most Demilec removal and replacement projects in Leander homes run between $2,800 and $6,500 depending on attic square footage, contamination level, and whether the original foam was applied directly to roof decking without proper ignition barrier. We are not affiliated with or authorized by Demilec - we are an independent service provider who works on what is actually installed in Leander attics, including the Crystal Falls and Travisso neighborhoods where we’ve pulled degraded Demilec Heatlok HFO and 500 series foam from homes built between 2016 and 2021. Call (737) 252-7159 for a free written estimate; the price we write is the price you pay.
How Demilec Products Fail - and How We Fix Them
- Heatlok HFO shrinkage and pull-away from top plates. We’ve removed this in multiple Leander homes where the HFO formulation contracted 10-15% within five years of application, creating visible gaps at the wall-to-roof junction. Our fix: complete removal of the compromised HFO layer, mechanical abrasion of the substrate, then reinstallation with proper expansion-joint planning and a verified ignition barrier where code requires it.
- Demilec 500 series open-cell water absorption in vented attics. The 500 series is open-cell, meaning it wicks moisture when roof leaks or bathroom exhaust penetrations allow humid air into the attic cavity. In Leander’s spring storm season, we’ve found saturated 500 series foam above master bathrooms in Crystal Falls that registered 28% moisture content on our pin meter. We remove the water-damaged foam to stud or deck, treat for mold if the sheathing is affected, then replace with closed-cell or a properly vented open-cell assembly depending on the roof design.
- Demilec SEALECTION Agribalance degradation from UV exposure in storage attics. Homeowners who converted portions of their attic to storage sometimes exposed this foam to years of incandescent or LED fixture radiation where protective coatings were never applied. The surface degrades to a chalky, friable state that sheds particles into the HVAC return. We remove the degraded material entirely, verify the ignition barrier, and replace with foam rated for the actual exposure conditions.
- Improper initial application thickness causing thermal drift. We have stripped Demilec jobs where the original installer sprayed 3 inches of open-cell in a roofline and called it an R-38 equivalent. Open-cell runs roughly R-3.6 per inch; that assembly was performing at R-10.8. Our fix: removal, documentation of the actual R-value deficiency with photos and thermal imaging, then replacement to proper depth with a calibrated ruler card verification at five points per 1,000 square feet.
- Rodent intrusion and nesting in older Demilec installations. Foam that was sprayed without first sealing entry points becomes a substrate for rodent activity. We’ve removed Demilec from two Leander homes where roof rats had tunneled through open-cell to nest against warm ductwork. The fix is not spot repair - it is complete removal, rodent proofing of all penetrations with steel mesh and foam sealant, sanitization, then replacement with new material.
Our Demilec Insulation Removal & Replacement Process
- 1
Call and scheduling. A live person answers, or you can text. We schedule a diagnostic visit, usually within 24-48 hours in Leander.
- 2
Attic inspection and documentation. We enter with a FLIR camera, moisture meter, and photo rig. We identify the Demilec product line if possible, measure actual thicknesses, and record contamination or degradation. You receive these photos before we leave.
- 3
Written scope and price. We deliver a flat price with line items for removal, disposal, substrate prep, replacement material, and ignition barrier if required. No work starts without your signature on this scope - Haven Standard Clause 1.
- 4
Removal and disposal. We use HEPA-contained removal equipment, bag the degraded Demilec per local disposal requirements, and protect your living space with sealed access barriers.
- 5
Replacement and verification. New insulation goes in only after air sealing is complete - top plates, can lights, penetrations. We verify depth with a calibrated ruler card and, on applicable jobs, run a blower-door test before and after to document the change in air leakage.
- 6
Final documentation and warranty. You receive a Documented Photo Record, any blower-door readings, and the written 365-Day Done Right Promise. Seal the envelope first. Then fill it.
Before
AfterWhat Demilec Insulation Removal & Replacement Costs in Leander
Most Demilec removal and replacement jobs in Leander fall into these ranges:
- Partial removal (water-damaged section, under 500 sq ft): $2,800-$3,900
- Full attic removal and replacement with open-cell foam (1,200-1,800 sq ft): $4,200-$5,800
- Full attic removal and replacement with closed-cell foam (same footprint): $5,200-$6,800
- Contaminated removal requiring sanitization and rodent proofing: add $800-$1,400
- Vermiculite or asbestos-containing overlay: add $1,500-$3,200 for abatement coordination
What moves the price: attic square footage, roof pitch (steeper = slower removal), whether the original foam was applied directly to roof decking, contamination requiring HEPA protocols, and whether the job requires a new ignition barrier or thermal barrier to meet current code. We also service Reflectix and other reflective insulation systems if your attic has mixed materials.
Call (737) 252-7159 for a free written estimate - we’ll inspect your specific Demilec installation and give you the exact number before any work starts.
Why Leander Homeowners Call Topside Attic Insulation Leander for Demilec Work
We’ve been in Leander long enough to know which builders used which Demilec formulations during which years, and what those installations look like after five Texas summers. Wes Okafor and our crew have removed and replaced Demilec in attics where the original contractor skipped the ignition barrier, sprayed over unsealed can lights, or simply got the chemistry wrong and the foam never cured properly.
Our 365-Day Done Right Promise covers all completed work. Calls are answered by a live person 24/7. Every job gets a written price before any work starts, a Documented Photo Record when we finish, and on air-sealing jobs, before-and-after blower-door numbers you can verify yourself. We are not locked to any single brand - we source from Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, Demilec, and GreenFiber - so our replacement recommendation is based on your attic’s actual conditions, not a distributor quota.
FAQs
Demilec’s warranty applies to the original installation and is generally non-transferable; modifying or removing the foam typically terminates any remaining coverage. As an independent Demilec service provider, we document the pre-existing condition with photos and thermal imaging so you have a record of why removal was necessary. Call (737) 252-7159 and we’ll review your specific situation.
We can source current Demilec formulations when they are the right choice for your assembly, but we are not required to use them. We select replacement foam based on your roof design, ventilation strategy, and whether you need open-cell or closed-cell performance. We also install Reflectix and other systems if a hybrid approach makes more sense.
Partial repair makes sense when the damage is isolated to under 15% of the total attic area, the substrate is sound, and the remaining foam tests below 5% moisture content. We recommend full removal when there is widespread shrinkage, moisture intrusion, or rodent contamination, because patched foam creates thermal bridges and air leakage paths at the seams. Our inspection gives you the data to decide.
Most jobs are completed in one to two working days after you approve the written scope. Same-day diagnostics are usually available within 24 hours. We do not queue you for “next available” without a date - Haven Standard: Arrive on schedule, you get a named technician and a text when they are on the way.
You get a Documented Photo Record showing before, during, and after conditions; a written invoice matching your approved scope; and the 365-Day Done Right Promise in writing. On jobs where we perform air sealing, you also receive the before-and-after blower-door test results - a pressurization reading that shows, in one number, how much air your building envelope was losing before and after our work.
Written by Wes Okafor, Owner, Topside Attic Insulation Leander at Topside Attic Insulation Leander, serving Leander and nearby areas.