Coil Cleaning in Houston, TX

What a dirty coil actually costs you

The coil is rarely the only casualty. Most Houston air handlers sit in the attic, directly over finished ceilings. When the fin face mats over, condensate sheets off instead of draining into the pan. The secondary pan fills. The first sign is a stain on bedroom drywall. A restricted coil can also ice up and send liquid refrigerant back to the compressor. That repair dwarfs a cleaning.

Coils load fast here for structural reasons. Platform returns and returns framed into stud bays pull unfiltered attic air straight past the filter grille. That air carries insulation fiber, dust, and whatever the rodents left. Newer builds pull in construction drywall dust for years. Flex duct sagging between supports holds dust in the low spots and feeds it forward.

The work itself: power off at the disconnect, open or cut the plenum, then reseal it. Slab coils often have to come out to reach the upstream face, which is the dirty side. Foaming cleaner, controlled rinse, water captured at the pan. The trap and drain line get cleared the same visit.

Two to four years suits most occupied homes here. Sooner after flooding, a remodel, or a long outage with the system sitting dormant in humidity. If fins are crushed flat or the coil is already leaking, cleaning buys you little.