Air Duct Repair in Houston, TX

Air duct repair in Houston attics

The back bedroom never cools. Air barely moves at that register while the hallway blows cold. That's usually duct, not thermostat. Most homes here keep the air handler in the attic, with insulated flex branches running to ceiling registers. Flex sags between hangers, kinks around decking, and starves the longest runs first. Repair means shortening the run, pulling it straight, and re-hanging it off the framing.

Boots are the other half of the job. Plenty were connected with cloth tape and nothing else. Tape dries out in attic heat and lets go, so conditioned air dumps into the insulation. Those get mechanically fastened and sealed with mastic. Return-side leakage is the expensive one. Oversized hallway return boxes pull 135°F attic air, plus dust and loose fiberglass, straight past the filter.

Check it yourself. Look for gray fanning on the ceiling around register edges. In the attic, look for silver tape hanging loose at a boot.

Some runs are past patching. Pre-1980 metal duct in Heights bungalows often sheds fiber from aged internal liner, and sealing joints does nothing for that. Crushed, brittle flex gets replaced, not taped.

Scope grows with access. Low roof pitch, decked storage, and deep blown insulation all add time. Coil, drain line, and plenum work often ride along, since humidity caused the failure.