Warm air from the vents
Refrigerant, compressor, capacitor and airflow checks to find why the system runs without cooling.
Air conditioning in your Atherton home not keeping up? HAXX repairs central AC, heat pumps and ductless systems, including multi-zone setups.
Serving Lindenwood, West Atherton, Lloyden Park, Atherton Oaks and West of the Alameda and the rest of Atherton. 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.
Atherton summers are warmer than the coast, and big two-story homes put long duct runs and upstairs zones under strain. Most calls come during the first hot stretch of the year.
Weak cooling on the second floor often comes from dampers, duct leaks or an undersized return, not the condenser. HAXX checks airflow first.
Failed capacitors, contactors and fan motors are the usual reasons a unit hums but will not run.
Refrigerant leaks are located and repaired before the system is recharged to spec.
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.

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.

Heat pump installation.

Outdoor heat pump installation.

Heat pump air handler installation.

Heat pump air handler service.
Yes. HAXX repairs zone boards, dampers and thermostats as well as the equipment itself.
Common causes are duct leaks, stuck dampers, dirty coils or low refrigerant. HAXX measures airflow and temperatures to find which one.
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.
