AC Repair in San Francisco, California
AC repair in San Francisco starts near $180 for a simple fix and can reach $850 for after-hours calls or major parts. A typical bill is closer to $550.
Compare Free Quotes in San Francisco
San Francisco Weather and HVAC Load
In a normal year, San Francisco racks up 3,260 heating and 29 cooling degree days (NOAA 1991-2020 normals). Heating is the bigger job here. The AC still runs every summer, but it works far fewer hours than the furnace does. Temperatures stay mild year-round: freezing nights and 90°F days are both rare.
| Heating degree days / year | 3,260 |
|---|---|
| Cooling degree days / year | 29 |
| Nights at or below 32°F | 1 |
| Days above 90°F | 1 |
| Average low / high | 50.6°F / 61.7°F |
San Francisco Housing Stock
Census figures put the median build year in San Francisco at 1945, so a typical house here has about 81 years on it. Houses that old often still have duct runs sized for an old coal or oil furnace and 60- or 100-amp electrical panels. Both can add cost when new equipment goes in. About 140,000 households here own their home, 38.5% of the occupied total. Homes here have a median value of $1,380,500 and households a median income of $141,446. Those two numbers drive the labor adjustment in our estimate.
San Francisco County had 3 hail days and 4 days with damaging thunderstorm winds from 2020 through 2025, according to NOAA storm records. Storms here are more likely to cause power surges than coil damage, so a surge protector on the outdoor unit is worth the small cost.
Symptoms Worth a Service Call
- Water pooling around the indoor unit
- The system cycles on and off every few minutes
- The breaker trips when the AC kicks on
- Ice on the refrigerant lines or the indoor coil
- The AC runs, but the air coming out is warm
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
- Refrigerant type and how many pounds it takes
- Nights, weekends and holidays
- Whether the equipment sits in a tight attic or on a roof
We raised the national figures about 21% for San Francisco 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
- A test run
- Clearing the drain line if it's clogged
- Checking refrigerant pressures
- Diagnosis and electrical testing
- Replacing the failed part
California Licensing and Efficiency Rules
California is in the DOE's Southwest 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). The Southwest also sets a minimum EER2, which measures efficiency at peak heat. A repair usually goes ahead without a permit, but the tech handling refrigerant must hold EPA 608 certification. Ask the company for its California license or registration number before the visit.
Before You Hire
- 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.
- If you see ice, shut the system off. Running it frozen can kill the compressor.
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AC Repair Questions from San Francisco Homeowners
What does AC repair cost in San Francisco?
Most bills land between $180 and $850, including the service call. A typical visit is about $550. 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 Francisco
- San Jose $190 to $890
- Fresno $160 to $750
- San Diego $200 to $910
- Sacramento $170 to $790
- Los Angeles $180 to $850
- Long Beach $180 to $850
- Oakland $180 to $850
- Bakersfield $170 to $770
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 Francisco Oceanside; NOAA Storm Events Database 2020-2025, San Francisco County. Prices are our estimates, not contractor quotes. Updated 2026.