Air Duct Cleaning Cost in Houston

Across the Houston market, a complete whole-home cleaning of a single-system house typically falls between $350 and $650, with two-system homes landing around $600 to $900. Those are market ranges, not a quote: your exact number depends on system count, vent count, attic access, and whether add-ons like coil or dryer vent cleaning are bundled in.

Three things move the price more than anything else: how many separate HVAC systems the home has, how many supply and return openings connect to them, and how hard the ductwork is to reach. A single-story home with twelve vents and a hallway air handler is a short job. A two-story home with two attic units, thirty registers, and flex duct snaking across a 130-degree attic is not.

Almost never. Proper source-removal cleaning requires HEPA negative-pressure equipment, agitation tools for every line, and a crew for several hours — the labor alone exceeds that price. Those offers are built to get a technician inside, who then "finds" mold or damage and pressures you into add-ons. Ask for a written scope, NADCA-standard methods, and camera proof before anyone touches a register.

It should, and you should ask. Return lines and the plenum around the air handler usually carry the heaviest debris because they pull unfiltered air from the house. Some low-cost operators quote only the supply side and bill returns as an upcharge on arrival. A legitimate whole-home quote covers supplies, returns, trunk lines, plenums, and register covers in one number.

In Houston, more often than in drier cities. Nine-month cooling seasons, year-round humidity, oak and ragweed pollen, and attic ductwork that sweats condensation all load ducts faster. It is most clearly worth it after a flood or roof leak, after a renovation, when visible dust blows from registers, when allergy symptoms are worse indoors, or when a camera scope shows real buildup or growth.

Post-flood work is priced after inspection because the answer depends on whether water reached the ductwork. Ducts that only took humidity may need a standard cleaning plus a sanitizing step. Ducts that were submerged, or flex duct with wet insulation, usually need to be replaced rather than cleaned — and an honest contractor will tell you that before quoting a cleaning you do not need.

We do not publish a flat price because we will not quote a home we have not scoped. After a free camera inspection and vent count, you get one written number for the full system — supplies, returns, plenums, and before-and-after footage included — and that number does not change when the crew arrives.

Yes. Once the system is sealed and open, adding coil cleaning, a dryer vent, or a UV purifier install costs less than booking each as a separate visit because the setup and travel are already covered. Bundling is the one honest discount in this industry — the dishonest one is the $49 door-opener.