HVAC Duct Cleaning in Houston, TX

What actually fills Houston ducts

Pier-and-beam blocks tell one story. Bungalows in the Heights, Montrose and Woodland Heights often run supply ducts under the floor. That crawlspace stays damp most of the year. Floor registers catch grit, pet hair and sand. Roof rats travel the same cavities. You usually smell it at the floor grille first.

Slab houses tell another. Ranch homes in Oak Forest, Meyerland and Sharpstown carry attic systems. Flex sags between truss chords. The outer jacket compresses under every hanger strap. Insulation thins there, so the core sweats. Then streaks show on the ceiling drywall below.

Check two things before calling anybody. Pull one supply register and feel inside the boot. Gray felt is lint and fiber, ordinary. Black speckling on bare metal means moisture, not dust. Next, look at the filter frame edges. If the frame is dirtier than the filter face, air is bypassing it entirely. Cleaning ducts changes little until that gap gets sealed.

Fiberglass ductboard plenums are common here. The inside face erodes under brush pressure, so those get vacuumed and coated, never scrubbed hard. Cloth duct tape at the boots has usually dried and curled; mastic replaces it. Anything showing a flood line gets replaced instead. Post-Harvey silt in low returns sets up like mortar.