Furnace Cleaning in Houston, TX

What furnace cleaning actually involves

Power comes off at the attic disconnect first. The gas valve gets closed. Doors come off the burner and blower compartments. The blower assembly slides out on its rails, and the squirrel-cage wheel is cleaned blade by blade, since caked dust on those blades chokes airflow. Burners come out next. They get brushed and the ports cleared. The flame sensor is scuffed clean, not sanded down.

Then the inducer wheel, the pressure switch tubing, and on condensing units, the condensate trap. The heat exchanger is inspected with light and mirror or a scope. After reassembly, the unit is fired and watched: flame pattern, flame signal, and temperature rise checked against the nameplate range on the cabinet.

Houston works the furnace a few weeks a year. That matters. Attic units sit idle for months collecting dust, mud dauber nests in burner tubes, and sometimes rodent or insect intrusion carried in through attic flex runs. Pier-and-beam homes with panned-joist returns pull crawlspace air straight into the cabinet, so the blower deck gets gritty fast.

Plenty of Houston homes have no furnace at all, just electric heat strips in an air handler. Different job, different inspection.

If the heat exchanger is cracked or the cabinet is rusted through, cleaning it is wasted money. We say so.