AC Repair in San Antonio, Texas
Most AC repair bills in San Antonio come in between $160 and $740, service call included. Wait times stretch in July and August, when San Antonio gets most of its 112 days over 90°F.
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San Antonio Weather and HVAC Load
In a normal year, San Antonio racks up 1,527 heating and 2,994 cooling degree days (NOAA 1991-2020 normals). Cooling carries most of the load, which is why compressors and condenser fan motors wear out faster here than in northern cities. On average, San Antonio gets 22 freezing nights and 112 days above 90°F per year. On the cooling side, a 2,000 sq ft house here usually needs around 3.5 tons. A tight, well-insulated house may get by with half a ton less.
| Heating degree days / year | 1,527 |
|---|---|
| Cooling degree days / year | 2,994 |
| Nights at or below 32°F | 22 |
| Days above 90°F | 112 |
| Average low / high | 58.1°F / 79.8°F |
San Antonio Housing Stock
Half the homes in San Antonio were built before 1984 (Census ACS median), so the typical house is about 42 years old. A lot of these homes are on their second or third system by now. The ductwork is usually original, and leaky joints are common. Owners live in 52.4% of occupied homes, roughly 287,000 households. With a median household income of $62,917 and a median home value of $219,700, local labor rates come out near the national middle in our model.
NOAA storm reports for Bexar County show 35 hail days and 24 days with damaging thunderstorm winds over the six years from 2020 to 2025. The largest hail reported was 5.5 inches across. Hail flattens the thin aluminum fins on condenser coils and cuts airflow. After a big storm, take a look at the outdoor unit; homeowners insurance often covers the damage. Bexar County also had 2 tornado days in that period.
Symptoms Worth a Service Call
- The breaker trips when the AC kicks on
- Water pooling around the indoor unit
- The system cycles on and off every few minutes
- The AC runs, but the air coming out is warm
- Ice on the refrigerant lines or the indoor coil
What Moves the Price
- The service call or diagnostic fee
- The part: a capacitor costs a fraction of a fan motor, and a compressor costs far more than both
- Whether the equipment sits in a tight attic or on a roof
- Nights, weekends and holidays
- Refrigerant type and how many pounds it takes
We raised the national figures about 6% for San Antonio using local income, home values and the equipment size this climate needs. Real bids can still come in outside the range, so collect three written quotes.
What the Quote Should Cover
- Diagnosis and electrical testing
- Replacing the failed part
- Checking refrigerant pressures
- A test run
- Clearing the drain line if it's clogged
Texas Licensing and Efficiency Rules
Texas is in the DOE's Southeast region, where new split central air conditioners need at least 14.3 SEER2 (13.8 SEER2 for systems of 45,000 BTU/h and up). A repair usually goes ahead without a permit, but the tech handling refrigerant must hold EPA 608 certification. Ask the company for its Texas license or registration number before the visit.
Before You Hire
- If you see ice, shut the system off. Running it frozen can kill the compressor.
- If the compressor is gone on an older unit, get a replacement quote before you pay for the repair.
- Swap the air filter and check the breaker before you call anyone.
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AC Repair Questions from San Antonio Homeowners
What does AC repair cost in San Antonio?
Most bills land between $160 and $740, including the service call. A typical visit is about $480. Night and weekend calls cost more.
What is the most common AC repair?
A failed run capacitor. The part is cheap, and the swap usually takes less than an hour.
Why is my AC freezing up?
Usually poor airflow, from a dirty filter or coil, or low refrigerant from a leak.
AC Repair Near San Antonio
- Houston $170 to $770
- Dallas $170 to $790
- Fort Worth $170 to $800
- Austin $210 to $960
- El Paso $150 to $690
- Arlington $170 to $780
- Corpus Christi $160 to $770
- Plano $200 to $920
Sources: U.S. Census Bureau ACS 5-year estimates 2019-2023 and 2024 population estimates; NOAA NCEI U.S. Climate Normals 1991-2020, station San Antonio Incarnate Word; NOAA Storm Events Database 2020-2025, Bexar County. Prices are our estimates, not contractor quotes. Updated 2026.