Ductwork & Airflow Services, Georgetown TX
Duct Repair & Construction
Repair disconnected, damaged, or collapsed duct sections. Restore airflow to rooms losing conditioned air.
Professional duct sealing with mastic or foil tape, eliminate air leaks that waste conditioned air in attic and crawlspace.
New duct system design and installation for additions, renovations, or full system replacement.
Custom fabrication of sheet metal trunk lines, branches, and fittings for high-performance duct systems.
Splice and reconnect flex duct sections, replace damaged sections, and correct improper flex duct installations.
Custom supply plenum fabrication for equipment replacements where the new unit requires a different plenum configuration.
Repair leaking or damaged return air plenums that allow unconditioned attic air to enter the system.
Applied mastic sealing for all duct joints and connections, the most durable sealing method for Georgetown's attic conditions.
Seal duct boots at registers where leakage directly into walls or ceilings causes significant energy loss.
Airflow Balancing
Measure and balance air distribution across all supply and return vents for even comfort throughout the home.
Comprehensive whole-house airflow evaluation and adjustment, dampers, registers, and duct sizing evaluated.
Balance airflow to specific problem rooms that receive too much or too little conditioned air.
Adjust zone dampers and control settings for homes with zoning systems to improve comfort and efficiency.
Full optimization of multi-zone airflow systems, control logic, damper travel, and zone sizing.
Optimize how conditioned air is distributed throughout the duct system for efficiency and comfort.
Improve overall air movement in the home through duct, register, and equipment adjustments.
Undersized return air is the most overlooked duct problem, we measure and correct return air flow.
Expand or add return air drops to improve system static pressure and airflow in homes with insufficient return capacity.
Dampers & Registers
Install manual balancing dampers in branch ducts to control airflow to specific zones or rooms.
Repair or replace motorized zone dampers that are stuck open, stuck closed, or not responding to controls.
Replace damaged, rusted, or improperly sized floor registers and diffusers.
Replace ceiling supply and return grilles with correct sizing and airflow direction for your room layout.
Install transfer grilles to improve pressure equalization and airflow between rooms with closed doors.
Install jump ducts above doorways or through walls to allow air pressure equalization between zones.
Redirect or baffle supply vents that blow directly on occupants or create drafty areas.
Measure and calibrate airflow from each vent against design specifications.
Ventilation & Testing
Repair ERVs, HRVs, exhaust fans, and dedicated ventilation systems.
Improve fresh air exchange and indoor air quality through targeted ventilation upgrades.
Measure system static pressure to identify duct restrictions causing equipment stress and efficiency loss.
Isolate duct sections from structure to eliminate vibration noise that transmits through walls and ceilings.
Install internal duct lining to absorb noise from high-velocity air movement in ducts near occupied spaces.
Duct Insulation & Protection
Install or replace duct insulation in Georgetown attics where heat gain from uninsulated ducts wastes significant energy.
Install vapor barriers to prevent condensation on cold supply ducts in Georgetown's humid summers.
Support or repair duct systems during crawlspace encapsulation projects.
Repair small-diameter high-velocity duct systems found in older homes and historic properties.
Preventing Condensation on Cold Supply Ducts
A vapor barrier on attic ductwork prevents warm, humid attic air from contacting the cold surface of a supply duct carrying 55 degree conditioned air, which without a barrier causes condensation to form on the duct's exterior the same way condensation forms on a cold glass of iced tea on a humid day. In a Georgetown summer, attic air can carry significant moisture even while the space itself feels dry, and that moisture readily condenses on any duct surface running noticeably colder than the surrounding air, which over time can saturate insulation, drip onto attic insulation below, and in persistent cases contribute to wood rot or mold growth on nearby framing.
Proper vapor barrier installation means the foil-faced or plastic-faced barrier layer is continuous and correctly sealed at every seam and joint, since even a small gap in the barrier gives humid air a path to reach the cold duct surface at that specific point, creating a localized condensation problem even when the rest of the run is properly protected. We seal all vapor barrier seams with foil tape rated for the purpose, pay particular attention to the interface where duct insulation meets a plenum, boot, or transition fitting since these junctions are common places where the continuous barrier gets interrupted, and check that the barrier is not compressed or torn from prior work in the attic that may have disturbed it.
This issue is especially relevant in Georgetown's humid summer months when dew points can stay elevated even during hot afternoons, meaning attic air genuinely holds enough moisture to condense readily on a cold surface. We see vapor barrier failures most often on older duct systems where the barrier has degraded or been damaged by pest activity or foot traffic during other attic work, and on duct systems that were insulated without adequate attention to vapor barrier continuity at the time of original installation. Left unaddressed, condensation-related moisture problems can be more damaging over time than the airflow or energy losses from an uninsulated duct, since sustained moisture exposure affects the wood framing and insulation surrounding the ductwork. Vapor barrier repair and installation typically runs 300 to 900 dollars depending on the extent of duct run needing attention.
Frequently Asked Questions, Attic Duct Vapor Barrier Installation
Uneven Comfort or High Energy Bills?
Ductwork problems are often the hidden cause. We diagnose and fix them.