Air Duct Sealing & Replacement

Central Texas summer temperatures consistently push attic spaces past 130 degrees Fahrenheit, transforming minor ductwork breaches into severe cooling losses. In historic homes throughout Hyde Park, Tarrytown, and Bouldin Creek, aging duct systems often suffer from degraded fiberglass insulation, cracked outer vapor barriers, and loosened mechanical connections. In newer multi-story properties across Circle C Ranch, Mueller, and Avery Ranch, undersized flex runs create distinct hot spots in upstairs bedrooms while driving up monthly electricity consumption. Repairing compromised supply runs stabilizes airflow across every register, allowing your central air conditioner or heat pump to satisfy thermostat setpoints without continuous compressor cycling.

Choosing between aeroseal sealing and a full duct replacement depends on duct age, structural accessibility, and physical degradation. Aeroseal or exterior mastic sealing suits ductwork that retains structural form but leaks through seams, joints, and boot connections. Full duct replacement is necessary when inner liners have collapsed, insulation has deteriorated past functional thermal resistance, or rodent activity has punctured the inner core. Upgrading to properly sized, tightly sealed R-8 ductwork eliminates unnecessary thermal gain across attic runs, lowers indoor relative humidity, and protects indoor air quality from fine attic insulation fibers and outdoor allergens.