GreenFiber Wall Insulation Nationwide

GreenFiber Wall Insulation in New Braunfels: What to Know First

We provide independent GreenFiber wall insulation service in New Braunfels, with most jobs scheduled within 48 hours and completed in a single day. You’ll get a written price before any work starts - no exceptions - and a documented photo record when the crew leaves. Most GreenFiber wall insulation jobs in New Braunfels homes run between $2,400 and $4,800 depending on wall area, cavity condition, and whether we’re drilling and filling from the exterior or working from inside. This page is for homeowners who already have GreenFiber in their walls and need it added, replaced, or supplemented - or for buyers of older New Braunfels homes who’ve discovered the original installation never met spec. Call (830) 243-6352 for a free estimate with a written scope.

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How GreenFiber Products Fail - and How We Fix Them

• Sanctuary settled below top plates. GreenFiber’s Sanctuary cellulose is treated with borates for fire resistance, but in New Braunfels’ extended cooling season the thermal cycling between 105°F attic air and conditioned wall cavities causes the material to settle 15-20% over 7-10 years. We’ve opened walls in the Gruene area where the upper 18 inches of cavity were essentially empty, creating a thermal bypass. We remove the settled material, install proper baffles or netting at the top plate, and re-densify the fill to original R-13 or R-15 spec.
• Stabilized cellulose that wasn’t actually stabilized. GreenFiber’s stabilized cellulose lines use a small percentage of acrylic binder to resist settling, but if the installer skipped the water-misting step during injection - common in fast-production tract work from 2015-2019 - the binder never activates. The material settles to half depth within three years. We test density with a wall probe before quoting, and if we find unstabilized loose fill, we extract and reinstall properly activated material or switch to a damp-spray application.
• Moisture wicking in south-facing walls. GreenFiber’s borate treatment resists mold but doesn’t make cellulose hydrophobic. In New Braunfels, south and west walls with inadequate exterior drainage - especially in the River Road corridor near the Guadalupe where water tables run high - can see seasonal moisture cycling above 20% wood moisture content. The cellulose compresses, loses R-value, and in extended cases the paper facing on drywall wicks staining. We pull the affected bays, remediate any sheathing damage, install a vapor-smart exterior strategy if needed, and re-fill with fresh material.
• Insulation blocking cavity ventilation in balloon-framed walls. Older homes in New Braunfels’ original downtown grid sometimes have balloon framing with continuous wall cavities from foundation to attic. GreenFiber blown into these cavities without fire-blocking or ventilation chokes can create moisture traps and code violations. We map the cavity with a borescope, install fire-stops where required by the 2021 IECC adopted by Comal County, and use targeted fill techniques that maintain necessary airflow paths.
• Low-density installation behind brick veneer. GreenFiber’s recommended dense-pack density for walls is 3.5-4.0 lbs per cubic foot. In New Braunfels’ many brick-veneer homes, installers sometimes drop to 2.5 lbs to avoid stressing the brick ties or because they lack the right nozzle setup. The result is a wall that passes a quick thermal scan but fails under blower-door pressure. We verify density with in-wall sampling, and if the cavity’s accessible, we re-densify to spec or recommend a netted blown-in-blanket approach that achieves proper density without structural load concerns.

Our GreenFiber Wall Insulation Process

1. 1
   Site assessment and written price. We inspect wall construction, existing insulation condition with borescope and probe, and identify any air-leakage paths at top plates, electrical penetrations, and window bucks. You get a flat price, written scope, and written warranty before anyone lifts a tool - Haven Standard Clause 1.
2. 2
   Air sealing before insulation. We seal all accessible bypasses with fire-rated caulk and foam. The number on the blower-door printout tells you what the insulation did. Everything else is just talk - so we establish the baseline CFM50 now.
3. 3
   Extraction or prep of existing GreenFiber. If we’re supplementing settled material, we calculate remaining density and decide whether to extract, top off, or replace entirely. For failed stabilized lines, extraction is usually necessary.
4. 4
   Installation with density verification. We use OEM-compatible GreenFiber cellulose or, if the customer prefers, equivalent borate-treated cellulose from our multi-brand inventory. Density is checked every third bay with a wall-cavity scale.
5. 5
   Blower-door verification and documentation. We run the pressurization test again, print pre- and post-job CFM50 readings, and photograph all work. You leave with the printout, the photos, and the warranty.
6. 6
   Cleanup and 365-Day Done Right Promise activation. The crew vacuums to finished-floor standard. If anything’s not right, we make it right - backed by the written scope you already have.

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What GreenFiber Wall Insulation Costs in New Braunfels

Most GreenFiber wall insulation jobs in New Braunfels homes run between $2,400 and $4,800. Here’s what moves you inside or outside that range:

• Drill-and-fill from exterior (vinyl or wood siding): $2,400-$3,600 for a typical 1,800 sq ft home with standard 2×4 walls. Holes are cored, insulated, and plugged to match.
• Interior access with drywall repair: $3,200-$4,800. Higher because of finish work, but necessary for brick veneer or when exterior access isn’t practical.
• Extraction of failed material plus reinstallation: Add $800-$1,400 depending on bay count and whether the material has compressed or moisture-damaged.
• Balloon-frame or multi-story complexity: Add $400-$900 for fire-blocking, extended hose runs, and safety setup.

We also source Reflectix and other multi-layer insulation products when the wall assembly calls for a hybrid approach. Call (830) 243-6352 for an exact quote - estimates are free, and we provide a Free Second Opinion on any written estimate you’ve already received.

Why New Braunfels Homeowners Call Topside Attic Insulation New Braunfels for GreenFiber Work

We’ve sealed and insulated over 9,000 homes since 2016, and a growing share of our wall work in New Braunfels involves correcting or completing GreenFiber installations that didn’t perform as advertised. Wes Okafor and our crew know the difference between Sanctuary, stabilized, and loose-fill cellulose densities by feel and by scale - not by label alone. Every applicable job gets before-and-after blower-door numbers, printed and filed by address. Our technicians are background-checked and uniformed, calls are answered by a live person 24/7, and we carry Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, Demilec, and GreenFiber materials - no proprietary lock-in means we recommend what fits your wall, not what moves our inventory.

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