AC Coil Cleaning in San Antonio, TX: Get Your Cooling Back

If your AC isn't cooling like it used to in San Antonio, don't jump to "I need a new system." Nine times out of ten, dirty coils are the actual culprit — and cleaning them costs a fraction of a replacement.

Why San Antonio coils foul faster

San Antonio runs one of the longer cooling seasons in South Texas, which means:

• Your evaporator coil sees thousands more operating hours per year than a home in a mild climate
• heavy oak pollen and long cooling seasons load the coil with pollen, mold spores, and outdoor particulate
• The outdoor condenser coil in Texas bakes in direct sun and collects everything the wind carries

A coil coated in just 1/16" of grime loses 20–40% of its cooling capacity. You feel it as long runtimes, warm rooms upstairs, and a power bill that keeps climbing.

What we actually do

Real AC coil cleaning in San Antonio is a two-part job:

Evaporator coil (indoor): 1. Power off, cabinet access panel removed 2. Foaming no-rinse coil cleaner applied fin-side 3. HEPA vacuum of pan and blower housing 4. Drain line flush with condensate treatment 5. Restart, temperature-split check across the coil

Condenser coil (outdoor): 1. Disconnect and safety lockout 2. Cabinet lift and top-down coil rinse (correct direction — most techs do this wrong) 3. Fin comb repair on bent fin sections 4. Amp draw and pressure check on restart

Fair San Antonio pricing

• Evaporator coil only: $180–$320
• Condenser coil only: $120–$220
• Both, bundled: $280–$450
• With full [HVAC blower cleaning](/services/hvac-system-cleaning): $450–$700

When to schedule

• Before every cooling season (April–May in San Antonio)
• If your AC has been running non-stop for a week and rooms are still warm
• If you notice ice on the refrigerant line at the air handler
• If humidity indoors is over 55% with the AC running

See our San Antonio coverage area for local dispatch — most days we can be out within 24–48 hours.