Evaporator Coil Services in Friendswood, TX

The three main causes are low refrigerant (from corroded copper lines or coils creating pinhole leaks), restricted airflow (clogged filter, collapsed duct sections, or failing blower motor), and a dirty coil surface acting as insulation. In Galveston's humidity, ice can build up much faster than in dry climates.

It can cause real damage. When the ice melts, the water can overwhelm drain pans and condensate lines. In dry climates you get a small puddle. On the Gulf Coast, a frozen coil thaw can soak ceilings, saturate insulation, and set up the moisture conditions mold needs.

Turn your thermostat to fan only, not off. This circulates room-temperature air to thaw the coil gradually. Place towels around the air handler base. Don't chip ice off. You'll damage fins and potentially puncture copper tubing. Let it thaw fully (1-3 hours), then call for service before turning cooling back on.

Our $225 AC tune-up includes evaporator coil inspection and cleaning, and we recommend tune-ups twice a year on the coast. A clean coil absorbs heat better, which means better cooling, better humidity removal, and lower energy bills.

Typically $800-$2,500 depending on coil size, refrigerant type, and accessibility. For coastal replacements, we recommend coils with factory-applied corrosion coatings when available, and we verify the air handler cabinet is properly sealed to minimize future salt infiltration.