Coil Cleaning

The evaporator coil is a dense aluminum fin pack that air must pass through. Once a dust mat forms across its face, two things happen at once: airflow drops and heat transfer falls off. The system reads as underperforming, runs longer, and can even freeze up, because the refrigerant does not absorb the heat it was designed to absorb.

Outdoors, the condenser coil suffers the same problem from cottonwood, grass clippings, dryer lint, and road dust. A fouled condenser raises head pressure, which raises energy use and puts the compressor — the most expensive component in the system — under sustained stress.

We clean coils with the correct method for the coil type and condition: coil-safe cleaner, gentle rinse, and fin straightening where needed, with the drain pan and line cleared afterward so the loosened material does not create a clog. Before-and-after photos come standard, and at $119 per coil this is one of the highest-return maintenance items on any HVAC system.