Johns Manville Home Energy Audit Nationwide

Johns Manville Home Energy Audit in Georgetown: What to Know First

A Johns Manville home energy audit in Georgetown typically runs $280-$520 for a full diagnostic package including blower-door test, thermal imaging, and duct-leakage measurement, with same-week scheduling available most of the year. We are an independent Johns Manville service provider, not affiliated with or authorized by the manufacturer. Our crew has audited JM-insulated homes from Sun City Georgetown to the San Gabriel River corridor since 2016, and we publish before-and-after blower-door numbers on every job so you see the actual performance change, not a guess. This page is for homeowners who need to know whether their Johns Manville insulation, air barrier, or duct system is performing as specified. Call (254) 970-2136 for a free estimate with a written price before any work starts.

Call (254) 970-2136

How Johns Manville Products Fail - and How We Fix Them

• JM Spider blown-in fiberglass settles below labeled R-value in Georgetown’s 140°F+ attics. The loose-fill product is rated at a settled density that assumes moderate attic temperatures, but attics here routinely exceed 140°F from June through September. That thermal cycling accelerates settlement, creating thin spots near eaves where the San Gabriel River corridor breeze drives infiltration. We measure actual depth with a probe grid, calculate the real R-value, and re-blow to corrected density if the thermal imaging shows gaps.
• JM Formaldehyde-free batts degrade at the top plate in homes built 2015-2020. The Kraft-faced batts installed in that Georgetown building boom often pull away from the top plate as the facing adhesive fails in high humidity. Our blower-door test isolates the leakage at the wall-to-attic junction, then we remove the failed section and foam-seal the top plate before reinstalling.
• JM AP Foil-faced polyiso board tape seams fail within 4-7 years on radiant barrier jobs. The acrylic tape specified for seam sealing degrades faster than the board itself in Central Texas UV exposure. We find this on retrofits where the original installer skipped mechanical fastening. Our fix: remove the failed tape, reseal with foil tape rated for 180°F continuous exposure, and add washer-headed fasteners at 16 inches on center.
• JM Climate Pro loose-fill creates wind-washing paths over porch ceilings and garage ceilings. The product’s low density, 0.5-0.6 pounds per cubic foot, blows easily in soffit-vented attics during our spring storm season. We map the displacement with thermal imaging, install proper baffles, and re-distribute or supplement with higher-density cellulose where the geometry demands it.
• JM duct liner in HVAC plenums delaminates from the sheet metal after 8-12 years. The fiberglass mat separates from the airstream-facing surface, sending particles into the conditioned space and destroying the acoustic and thermal performance. Our duct-leakage test quantifies the loss, then we replace the liner or recommend a full plenum rebuild depending on the delamination percentage.

Our Johns Manville Home Energy Audit Process

1. 1
   Call and schedule. A live person answers 24/7. We book a two-hour window and text you when the technician is en route.
2. 2
   Pre-job documentation. We photograph the attic, crawl space, and mechanical room, then record existing insulation depths and any visible Johns Manville product labels.
3. 3
   Blower-door test and thermal imaging. We depressurize the house to 50 Pascals, measure CFM50 leakage, and run a FLIR scan to find the paths the air is actually taking. This takes 45-60 minutes in a typical Georgetown home.
4. 4
   Duct-leakage test. We pressurize the duct system and measure leakage to outside as a percentage of system airflow. For JM-lined plenums, we also inspect for delamination with a borescope.
5. 5
   Written scope and price. Before any work starts, you get a flat price, written scope, and written warranty. Haven Standard Clause 1. No exceptions.
6. 6
   Air sealing first, then insulation. We foam-seal every penetration, top plate, and can light. Then we add or replace insulation. Seal the holes first. Then we talk about R-value.
7. 7
   Post-job testing and documentation. We rerun the blower-door test and hand you a report with before-and-after CFM50 numbers, thermal images, measured R-values, and duct-leakage percentages. The Documented Photo Record is included, not available on request.

Before

After

What Johns Manville Home Energy Audit Costs in Georgetown

Most Johns Manville home energy audits in Georgetown fall between these ranges:

What moves the price: attic square footage, accessibility (truss height and decking), whether the home has active JM duct liner delamination requiring borescope inspection, and if we find code-violation items from the original install that must be corrected before new insulation goes in. Sun City Georgetown homes with spray-foam rooflines and JM batts in the walls typically test faster and cost less than two-story builds in the River Chase area with complex duct runs. We also service Reflectix radiant barrier systems if your home has a hybrid install. Call (254) 970-2136 for an exact quote. Estimates are free, and the price we write is the price you pay.

Why Georgetown Homeowners Call Topside Attic Insulation Georgetown for Johns Manville Work

We’ve sealed and insulated 9,000+ homes since 2016, every one with a written price before work started and a documented record when the crew left. Our 365-Day Done Right Promise means if the blower-door number doesn’t hold, we make it right. Wes Okafor and our crew have worked Johns Manville products from the early Formaldehyde-free line through current Spider and Climate Pro formulations, and we source materials from Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, Demilec, and GreenFiber. No proprietary lock-in. If your JM system needs a different manufacturer’s product to perform correctly, we tell you directly and show you the test data that proves it. Background-checked, uniformed technicians. Calls answered by a live person, 24/7. No voicemail loops.

FAQs