Most heating and cooling calls in San Jose come down to one of three situations: something stopped working, a system is old and due for replacement, or part of the house never gets comfortable. The services below are grouped by the kind of work, and each line says what it covers and when it tends to come up here, where hot valley afternoons make cooling as important as heat. Most repairs fall between $89 and $500, and a new central air conditioner typically runs $4,500 to $15,000. You approve the exact price before any work starts.
Cooling
- AC repair: a system that runs without cooling, trips a breaker, leaks water or ices up. Calls peak on the first hot afternoons, when units that sat idle all spring suddenly run for hours. For Berryessa, see same-day AC repair in Berryessa.
- AC installation: new central air or a replacement, sized from a load calculation rather than from the old unit’s label. AC installation in Berryessa covers a neighborhood where the systems differ from street to street.
- AC maintenance: a spring tune-up that cleans the outdoor coil, tests the electrical parts, clears the condensate drain and checks refrigerant and airflow before the first heat wave.
- Mini-split installation: ductless heating and cooling for additions, converted garages and rooms the ducts never reached. See also ductless mini-splits in North San Jose.
- Mini-split repair: error codes, an indoor unit that blinks or drips, and communication faults between the indoor and outdoor units.
Heating
- Furnace repair: gas and electric furnaces that will not light, blow cold air or shut off early. Igniters, flame sensors, pressure switches and blower motors cause most no-heat calls.
- Furnace installation: replacing a worn furnace, with the gas, venting and electrical checks that come with it. Furnace installation in North San Jose has its own page.
- Furnace maintenance: a fall safety check of the burners, heat exchanger, venting and safety controls before the cool nights start.
- Heat pump installation: one system for heating and cooling, often replacing an old furnace and AC pair. San Jose’s mild winters suit heat pumps well.
- Heat pump repair: no heat or no cooling, ice that does not clear, and defrost or reversing valve faults.
Air quality
- Air purification: whole-home filtration and air cleaning for allergies, dust, odors and smoke days.
- Air duct cleaning: for dust that comes back soon after cleaning, debris left by a remodel or signs of pests in the ducts.
- Humidifier installation: whole-house humidifiers for dry winter air while the heat runs. The page also explains when a dehumidifier is the better fit.
Emergencies, plans and commercial work
- Emergency HVAC: no heat on a cold night, no cooling in a heat wave, a burning smell or a breaker that keeps tripping. Urgent calls are taken 24/7. For Almaden Valley, see emergency HVAC in Almaden Valley. If you smell gas, leave the house and call the gas company from outside first.
- Maintenance plans: a yearly agreement that books the spring cooling and fall heating visits for you.
- Thermostat installation: smart and programmable thermostats wired and set up for your system, including heat pumps and the C-wire question.
- Commercial HVAC: offices, shops and other business properties, quoted building by building.
- Rooftop unit service: belts, economizers, coils and controls on packaged rooftop units.
Not sure where to start?
Book the repair for whatever is acting up. If the cause turns out to be the ducts or the thermostat, the technician will tell you. The cost guides show typical prices, the problem guides cover what you can safely check first, and the neighborhood pages describe the homes we work in across San Jose.