Warm air from the vents
Refrigerant, compressor, capacitor and airflow checks to find why the system runs without cooling.
AC not cooling during a San Francisco heat spell? HAXX repairs central air, heat pumps and ductless systems in homes and condos across the city.
Serving the Sunset, the Richmond, Noe Valley, Bernal Heights, Pacific Heights and West Portal and the rest of San Francisco. Share your address to confirm availability.

Central air conditioners, heat pumps in cooling mode and ductless systems. Most visits start with a full diagnostic so the repair targets the real cause.
Refrigerant, compressor, capacitor and airflow checks to find why the system runs without cooling.
Thermostat, breaker, disconnect, contactor and control-board testing.
Usually airflow or refrigerant charge. We fix the cause, not just thaw the ice.
Blower motors, dirty coils, clogged filters and duct problems that leave rooms warm.
Buzzing, grinding or burning smells checked before a small problem becomes a failed compressor.
Condensate drains, pans and pumps cleared and tested.
Census data show only about half of Bay Area metro homes have air conditioning, so the systems that exist get pushed hard on the few hot days.
Cooling equipment that runs only a few weeks a year can fail at startup. Capacitors, contactors and seized fan motors are common calls.
HAXX locates the leak before recharging and explains whether a coil repair or replacement is the better fix.
Clogged drains and failed condensate pumps in closets and attics can damage ceilings below in flats and condos. These are checked on every visit.
Rated 4.8 across 515+ reviews on Housecall Pro, Google and Facebook. Read more reviews.
“Thorough diagnostics of A/C system, identified and repaired the issue quickly!”
“Service was performed well and on time. Service person was highly skilled and provided easy to understand options to deal with the issue. Price for diagnostics was reasonable and easy to pay online.”
“Our commercial building had several HVAC problems, and their team carefully diagnosed each unit, explained the available options, and never pressured us into unnecessary replacements. They worked hard to repair what could be repaired and kept us informed throughout the process.”
Brand, model and what it is doing. Photos of the label or error code help.
The technician tests the system and finds the cause, not just the symptom.
You see the repair price before work starts, and the options if a repair is not worth it.
The repair is completed and tested, or scheduled once the part arrives.
A closer look at recent heating and cooling work by HAXX. Projects in San Francisco are marked with the city.

On site during a commercial VAV box repair: access above a suspended ceiling, equipment and the work in progress.
Explore recent projects
Compressor replacement.

Leaking coil replacement.

System recharge and brazing correction.

After-hours system repair.

Basement subpanel and circuits.

Heat pump installation.

Outdoor heat pump installation.

Heat pump air handler installation.
Common causes are a failed capacitor, a dirty or iced coil, or low refrigerant from a leak. HAXX tests the system before recommending a repair.
Yes. HAXX repairs mini-split and multi-zone systems from Mitsubishi Electric, Daikin, Fujitsu, LG and other brands.
Often, yes, in summer especially. Call and the team will confirm the earliest arrival window for your address.
Compare the diagnosed fault, the repair price and the system's age and refrigerant. HAXX shows both paths so you can choose.
Share the property, equipment and questions you have in mind.
(408) 901-8315
Call HAXX to discuss your property and scheduling.
