Demilec Spray Foam Insulation Nationwide

Demilec Spray Foam Insulation in Pflugerville: What to Know First

We provide independent Demilec spray foam insulation in Pflugerville, TX, with most jobs completed same-day and pricing put in writing before any work starts. A typical open-cell attic job in a 2,000-square-foot Pflugerville home runs $3,800 to $5,400; closed-cell rim joist work in the same footprint runs $2,200 to $3,600. We are not affiliated with or authorized by Demilec - we are an independent service provider - and we service Demilec alongside Reflectix and other major brands.

Call (737) 259-8352

This page is for homeowners in Pflugerville, Stone Hill Town Center, and the surrounding Austin metro who have Demilec spray foam in their attic, walls, or rim joists and need to know whether it can be repaired, topped off, or fully replaced. If you’re seeing odor issues, shrinkage, or areas where the foam has pulled away from studs, call (737) 259-8352. We answer live, 24/7.

How Demilec Products Fail - and How We Fix Them

• Demilec Heatlok HFO High Lift shrinkage at roof decks. The HFO blowing agent in this closed-cell series can produce off-ratio foam in Central Texas summer heat if the substrate temperature exceeds 100°F during application. In Pflugerville attics, we see this most often on west-facing roof decks where the sheathing hits 120°F by 3 PM. We cut out the shrunken sections back to sound foam, recondition the substrate with a targeted cooling period, and reapply at proper ratio with real-time temperature logging.
• Demilec Sealection 500 open-cell odor retention in humid seasons. This 0.5 lb/ft³ open-cell foam is hydrophilic; when attic humidity spikes above 70% in Pflugerville’s spring and fall, it can retain moisture and produce a sour, chemical smell. We don’t just mask it. We remove the affected foam, install a properly calculated vapor retarder coating where code requires it, and verify with a blower-door test - a pressurization reading that shows, in one number, how much air the building envelope is losing - that the attic is no longer pulling moist outside air through bypasses.
• Demilec Heatlok XT rigid board delamination from steel studs. The XT series is often used in garage ceiling and rim joist applications around Pflugerville’s newer construction. When applied over cold steel in winter, the foam can release from the flange if the metal wasn’t primed or if the pass thickness exceeded manufacturer limits. We grind back to bare metal, apply a steel-specific primer, and reinstall in lifts no thicker than 2 inches with full cure between passes.
• Demilec AgriThane agricultural-grade foam misapplied in residential crawl spaces. We’ve found this in three Pflugerville homes near Dessau Road where a previous installer used leftover AgriThane - a 2.0 lb/ft³ closed-cell product meant for barns and metal buildings - on crawl space rim joists. It off-gasses differently than residential-grade foam and lacks the fire-retardant package required by IRC. We remove it completely, dispose per Texas environmental guidelines, and reinstall with proper residential-grade Heatlok or an equivalent code-compliant product.
• Demilec Sealection Agribalance crumbling at top plates in balloon-framed sections. Older Pflugerville homes near downtown sometimes have balloon framing or modified platform framing where the top plate isn’t fully sealed. Agribalance, a mid-density open-cell product, can degrade at the edges where air washes through continuously. We seal the top plates with closed-cell spray or gasketed blocking first - always air sealing before insulating - then reinstall the open-cell foam so it’s protected from convective airflow.

Our Demilec Spray Foam Insulation Process

1. 1
   Call and schedule. A live person answers. We ask about the Demilec product line if you know it, the year it was installed, and what you’re seeing or smelling. We schedule a site visit with a written price to follow - no work starts without it, per Haven Standard Clause 1.
2. 2
   On-site diagnostics. We inspect the foam visually for shrinkage, delamination, and discoloration. We run a blower-door test to quantify envelope leakage. We photograph everything. The report tells you what the house does. The insulation changes what the house does. Those are two different conversations.
3. 3
   Parts and materials decision. For Demilec repairs, we use OEM Demilec resin when the original install was within spec and the failure is isolated. For systemic issues or discontinued lines, we specify quality aftermarket foam from Icynene, Johns Manville, or Knauf - whichever matches the original R-value and vapor profile. We explain the trade-off in writing before you decide.
4. 4
   Air sealing first, then insulation. We never spray over unsealed top plates, can lights, or penetrations. In Pflugerville’s climate, an attic with 4 ACH50 leakage will lose 30% of its conditioned air through bypasses regardless of how thick the foam is. We seal, then we insulate, in that order.
5. 5
   Application and real-time monitoring. Substrate temperature, ambient humidity, and mix ratio are logged continuously. For closed-cell work, we verify pass thickness with a depth gauge every 10 square feet.
6. 6
   Testing, documentation, and closeout. We run a post-job blower-door test and hand you the before-and-after numbers in writing. You get a Documented Photo Record, the written scope, and the 365-Day Done Right Promise. If it’s not done right, we make it right.

Before

After

What Demilec Spray Foam Insulation Costs in Pflugerville

These are real Pflugerville market ranges for 2024-2025, not teaser rates. Every job gets a flat written price before anyone lifts a tool. Bring us a competing written estimate and we’ll read it with you - our Free Second Opinion, no obligation. Call (737) 259-8352 for an exact quote; estimates are free.

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 aren’t a surprise to us. Wes Okafor trained in building systems technology at Kennedy-King College on Chicago’s south side, where the curriculum drilled air-sealing fundamentals - the idea that blown-in insulation is only half the job if the can lights and top-plates are still leaking. That training shows up in how we handle Demilec jobs: we don’t guess at why your Heatlok HFO shrank or your Sealection 500 smells; we measure, document, and fix the cause.

Our 365-Day Done Right Promise covers all completed work. Our technicians are background-checked and uniformed. Calls are answered by a live person, 24/7. And because we source materials from Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, Demilec, and GreenFiber - no proprietary lock-in - we specify what performs, not what we’re obligated to push.

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