No heat
Thermostat, power, gas supply, ignition and control-board testing to find why the furnace will not fire.
No heat in San Jose? HAXX repairs gas furnaces in attics, closets and garages across San Jose, with safety checks on every visit.
Serving Willow Glen, Cambrian, Almaden Valley, Evergreen, Berryessa and West San Jose and the rest of San Jose. Share your address to confirm availability.

Gas furnaces in attics, closets, garages and crawl spaces. Every repair visit includes basic safety checks on the burners and venting.
Thermostat, power, gas supply, ignition and control-board testing to find why the furnace will not fire.
Furnaces that click, light and shut off are often a dirty flame sensor or a failing hot-surface igniter.
Limit switches, pressure switches and inducer motors checked in order.
Overheating from restricted airflow, a dirty filter or an oversized furnace.
Banging, squealing or a burning smell checked before the next cold night.
Venting, heat-exchanger visual check and carbon monoxide concerns raised in plain language.
Most San Jose homes heat with a gas furnace, often in the attic or a hallway closet. Cold snaps bring the same failures every year.
Igniters, flame sensors, pressure switches and inducer motors cause most no-heat calls, and most are same-visit repairs when the part is available.
Many 1950s to 1970s homes have attic furnaces with long flex ducts. Airflow and venting are checked on every visit.
If the heat exchanger is cracked or repairs keep adding up, compare a new furnace with a heat pump. Bay Area rules from 2029 will limit new gas furnaces.
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 Jose 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
Heat pump air handler installation.

System recharge and brazing correction.

Carrier furnace diagnosis and repair.

Gas furnace service.

Attic plenum resealing.

Lennox ac installation.

Heat pump installation.

Outdoor heat pump installation.
Yes. HAXX repairs attic, closet and garage furnaces throughout San Jose.
Today, yes. Bay Area Air District rules taking effect in 2029 will limit new gas furnaces, so it is worth pricing a heat pump too.
If the furnace is old or the repair is expensive, it is worth pricing a heat pump, which also adds cooling. HAXX can quote both.
No. Turn it off, leave the house if the smell is strong, and call PG&E or 911. Call HAXX for the repair once the area is safe.
Share the property, equipment and questions you have in mind.
(408) 901-8315
Call HAXX to discuss your property and scheduling.
