Owens Corning Blown-In Insulation in Boerne: What to Know First
We provide independent Owens Corning blown-in insulation service in Boerne, with most attic jobs completed in a single day and pricing put in writing before any work starts. Most Owens Corning blown-in fiberglass top-ups in a 1,500-2,500 square foot Boerne home run between $1,800 and $3,400, depending on existing depth and air-sealing needs. This page is for homeowners who already have Owens Corning insulation in place and need service, additional coverage, or replacement - not a sales pitch for switching brands. If you’re seeing settled fiberglass, uneven coverage, or rising cooling bills in a home built between 1995 and 2015, you’re probably in the right place. Call us at (830) 529-7780 for a free estimate with a written price before any work begins.
How Owens Corning Products Fail - and How We Fix Them
- AttiCat Pink Fiberglass - settling below labeled R-value in Hill Country heat. The AttiCat system blows loose-fill fiberglass that can settle 10-15% in Boerne’s attic temperatures, which regularly hit 140°F in July and August. We measure existing depth with a ruled probe, calculate current R-value against the original bag count, and blow additional Owens Corning ProPink L77 to restore the thermal barrier rather than guessing by eye.
- ProCat Loose Fill - compression from storage traffic or HVAC maintenance. Homeowners in Boerne neighborhoods like River Road and Balcones Creek often use their attics for storage or have quarterly HVAC servicing that compresses the ProCat layer. Compressed fiberglass loses up to 50% of its rated R-value. We rake the compressed areas, add air-sealed decking paths for future access, and reblow to uniform depth with a depth marker every 100 square feet.
- InsulPure - moisture absorption in vented attics with bathroom fan leaks. Owens Corning’s InsulPure cellulose is treated with borate for fire resistance, but it will wick moisture from a leaking bath fan duct or poorly flashed chimney in Boerne’s spring storm season. We don’t just replace the wet cellulose; we find the moisture source with a thermal imager, seal the penetration, and document the repair in your photo record before blowing new material.
- Wall-Rite dense-pack - settling in balloon-framed or tall wall cavities. Older homes near the Cibolo Nature Center and downtown Boerne often have balloon framing or 10-foot interior walls where dense-pack fiberglass can settle over time, leaving a cold zone at the top plate. We drill and scope the cavity, then use a higher-density blow at 3.5-4.0 lbs per cubic foot to lock the material in place, with a written density check on the work order.
- FastBatts used as loose-fill - improper original installation creating gaps. We’ve found Owens Corning FastBatts, which are designed for friction-fit wall cavities, torn apart and blown loose by previous installers in several Fair Oaks Ranch-area homes. The batts don’t shred consistently, leaving clumps and voids. We remove the irregular fill, air-seal the attic floor properly, and install the correct loose-fill product with a calibrated blowing machine.
Our Owens Corning Blown-In Insulation Process

- 1
Call and scheduling. A live person answers 24/7. We book a diagnostic visit, and you’ll get a text when your technician is en route with a name and photo.
- 2
Attic inspection and blower-door test. We run a blower-door test - a pressurization reading that shows, in one number, how much conditioned air your building envelope is losing. Wes Okafor’s crews have found that homes near the Cibolo Nature Center in Boerne often read 3,500-5,000 CFM50 before any work, with stack-effect leakage through top plates eating cooling bills before a single batt ever went in.
- 3
Written price and scope. We deliver a flat price, written scope, and written warranty before anyone lifts a tool. Haven Standard Clause 1: no work starts without it.
- 4
Air sealing first, then insulation. Seal the envelope first. Then fill it. We seal top plates, can lights, pipe penetrations, and chimney chases with fire-rated foam and acrylic caulk. Only after the attic floor is sealed do we set up the blowing machine.
- 5
Installation with density and depth checks. We use a calibrated blower, mark depths every 100 square feet, and photograph the completed coverage for your Documented Photo Record.
- 6
Final blower-door test and documentation. We run the blower door again, print the pressure-differential report in pascals, and leave you with the before-and-after numbers, the photo record, and the written warranty. The 365-Day Done Right Promise applies from that moment.
What Owens Corning Blown-In Insulation Costs in Boerne
| Job Type | Typical Range | What Moves the Price |
|---|---|---|
| Attic top-up (existing R-19 to R-38) | $1,800 - $2,800 | Attic square footage, access difficulty, whether air sealing is needed first |
| Full attic replacement with removal | $3,200 - $5,500 | Volume of old material, presence of rodent damage, decking replacement |
| Dense-pack wall insulation (per 1,000 sq ft of wall) | $2,400 - $4,000 | Cavity accessibility, plaster vs. drywall, need for interior or exterior access |
| Crawl space insulation with vapor barrier | $2,800 - $4,500 | Crawl height, existing moisture damage, perimeter sealing requirements |
Prices include materials sourced from Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, Demilec, and GreenFiber - no proprietary lock-in. We also carry Reflectix radiant barrier products for Boerne homes with ductwork in the attic. Every estimate is free, every price is written, and every job gets the Documented Photo Record. Call (830) 529-7780 for your exact number.
Why Boerne Homeowners Call Topside Attic Insulation Boerne for Owens Corning Work

We’ve sealed and insulated over 9,000 homes since 2016, every one with a written price before work started and a documented record when the crew left. Our technicians are background-checked and uniformed, and they know Owens Corning’s product lines well enough to spot when a previous installer used the wrong material for the application - like FastBatts blown loose or ProCat compressed to half its value. We don’t sell one brand; we source from eight manufacturers including Owens Corning and Reflectix, so the recommendation matches your home, not our inventory. The 365-Day Done Right Promise means if it’s not done right, we make it right - backed by a written scope and written warranty delivered before anyone starts. And if you have a competing estimate, bring it in; we offer a Free Second Opinion on any written quote.
FAQs
No - Owens Corning’s product warranty covers manufacturing defects in the material itself, not the installation. As an independent Owens Corning service provider, we install to manufacturer specifications and document our work so any legitimate product claim remains valid. We do not alter or register warranties on your behalf; we simply install correctly and leave you the paperwork. Call (830) 529-7780 if you want us to review your warranty documents during the estimate.
Repair is practical when the existing fiberglass is dry, uncontaminated, and simply settled below target depth - typical for AttiCat or ProCat systems under 15 years old in Boerne. Removal and replacement is necessary when there’s moisture damage, rodent activity, or mixed/incompatible materials like torn FastBatts. We scope the attic with a camera and give you a written recommendation with photos, not a sales push. Estimates are free.
Most attic top-ups and air-sealing jobs are scheduled within 3-5 business days and completed in one day. Full removals, dense-pack wall work, or jobs requiring decking replacement may take two days. We don’t manufacture urgency - we tell you the real availability when you call (830) 529-7780.
We use Owens Corning loose-fill fiberglass and cellulose when it’s the right material for the job, sourced through normal distribution channels. For accessories - baffles, vent chutes, fire-blocking foam - we use code-compliant products from multiple manufacturers, selected for performance rather than brand matching. We never substitute without noting it on the written scope.
You get three things: a Documented Photo Record of the completed work, a printed blower-door report with before-and-after CFM50 and pascals readings if applicable, and a written warranty under the 365-Day Done Right Promise. Haven Standard: Have it in writing. No exceptions.
Ready to see what your Owens Corning insulation actually needs? Call (830) 529-7780 for a free estimate with a written price before any work starts - or bring us a competing quote for a Free Second Opinion.
Written by Wes Okafor, Owner, Topside Attic Insulation Boerne at Topside Attic Insulation Boerne, serving Boerne and nearby areas.