Warm air from the vents
Refrigerant, compressor, capacitor and airflow checks to find why the system runs without cooling.
AC blowing warm, freezing up or dripping water in Belmont? HAXX repairs central air and ductless cooling in homes from Carlmont to the Belmont Village area.
Serving Carlmont, Sterling Downs, Homeview, Cipriani, Hallmark and Sunnyslope and the rest of Belmont. 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.
Belmont sits between the cooler Bayside and the warmer inland Peninsula, and hillside homes with big west windows can overheat on late summer afternoons. That is when worn parts give out.
On hot days, a worn capacitor, contactor or condenser fan motor is behind most failures. The technician tests the circuit and usually carries common parts.
Topping off refrigerant without locating the leak means the system will be low again soon. HAXX locates and repairs it first, then charges to spec.
Clogged condensate lines and dirty filters in attic air handlers lead to frozen coils and ceiling stains. HAXX clears and checks the drain path.
Rated 4.8 across 515+ reviews on Housecall Pro, Google and Facebook. Read more reviews.
“Their technician was professional, honest, and took the time to explain the problem and the repair process clearly. Instead of pushing for an expensive replacement, they repaired our HVAC system and helped us save a significant amount of money. The work was completed carefully, and our air conditioner is now working well.”
“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.”
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.
Low refrigerant, a dirty coil, a failed capacitor or a stopped condenser fan are the usual causes. HAXX diagnoses before quoting a repair.
Yes. HAXX services wall, ceiling and floor ductless heads along with ducted central air.
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.
