AC Tune-Up & Maintenance Plans in Katy, TX

A single-system AC tune-up costs $89 flat from 75 Degree AC, with no diagnostic surcharge. That covers the full 21-point inspection, measured readings, and a written report. Dual-system homes run higher, and our $149-a-year Comfort Plan bundles two visits with a 15% repair discount.

We run a 21-point inspection covering coils, refrigerant charge by superheat and subcooling, electrical components, the condensate drain and float switch, airflow, and thermostat calibration. Each point gets a measured value, and you leave with a written report. The visit takes 60 to 90 minutes per system, not 15.

Once a year at minimum, and twice a year is the better call in Katy. Systems here run 1,500 to 2,000 hours a year through 102-plus days above 90°F, and the 74.7% average humidity fouls coils and drains faster than in drier climates. A spring AC visit plus a fall heating check keeps both sides of the system honest.

The annual visit is worth it; the $29 bait version can be a scam. The difference is whether the technician shows you measured readings before recommending parts. We test the capacitor against its nameplate and verify refrigerant charge with instruments before we suggest anything, so you see the evidence, not just an invoice.

It genuinely needs annual service, for two concrete reasons beyond marketing. First, Lennox, Goodman, and most major brands can deny warranty claims without documented annual maintenance. Second, a dirty coil quietly costs you 15 to 20% in efficiency, which is real money on a Katy summer bill.

Watch for rising electric bills, weak or warm airflow from the vents, a musty smell when the system kicks on, longer run times to hit the same temperature, and water near the indoor air handler. Any of these before May is a reason to book now, while the schedule is open.

Yes. Lennox and Goodman in particular can deny a parts claim if you cannot show documented annual professional maintenance, and Carrier and Trane both require the system to be properly maintained. A dated service invoice is your defense, which is why we leave you the paperwork after every visit.

Efficiency drifts down 10 to 20% as coils foul, a clogged condensate drain can overflow and damage a ceiling, a tired capacitor can fail in peak heat, and you risk a warranty denial on any major part. The repairs that follow usually cost far more than the two tune-ups you skipped.

It does. At 74.7% average annual humidity, your AC pulls a lot of water out of the air, which means high condensate volume running through the drain line all summer. That biological growth clogs lines faster here, and a backed-up drain in a two-story Katy home with an attic air handler is how ceilings get water-stained. Flushing the drain and testing the float switch are core points on our tune-up.

Book in February or March. By May, when the first 95°F afternoons hit, we are scheduling weeks out, and so is everyone else. Getting on the calendar early means a planned visit on your timeline instead of waiting in line during the summer crunch. Call (713) 598-2737 to claim a spring slot.