AC not cooling — San Francisco, California
When your air conditioner runs but fails to cool, the problem could be a refrigerant leak, a dirty filter, a frozen evaporator coil, or a malfunctioning compressor. An HVAC technician can diagnose the issue, recharge refrigerant if needed, and restore comfortable temperatures.
Why this is common in San Francisco
The cool, foggy maritime climate means central AC is rare and rarely needed, so HVAC work centers on heating efficiency, ventilation, and increasingly heat-pump retrofits driven by Title 24 energy rules. Older homes often have undersized or outdated heating systems requiring careful upgrades.
Who to call
For this problem in San Francisco, call a: HVAC Technician
Find a HVAC Technician in San FranciscoSymptoms to look for
- Air blows but is not cold
- The unit cycles on and off frequently
- Ice buildup on the outdoor unit or refrigerant lines
- Warm spots in rooms that used to be cool
Emergency Service in San Francisco
Emergency home services in San Francisco are available 24/7 at premium rates — expect $150–$300+/hour for after-hours plumbing or electrical, the highest tier in the US. Response times average 45–90 minutes given hilly terrain and parking scarcity. Always verify an active CSLB license and proper DBI permits.