No heat
Thermostat, power, gas supply, ignition and control-board testing to find why the furnace will not fire.
FURNACE REPAIR · CUPERTINOFurnace Repair
Furnace Repair
in Cupertino, CA.
Furnace in your Cupertino home not lighting, blowing cold or shutting off early? HAXX repairs gas furnaces and air handlers and checks for safety issues.
Serving Monta Vista, Rancho Rinconada, Fairgrove, Garden Gate, Lynbrook and Inspiration Heights and the rest of Cupertino. Share your address to confirm availability.
4.8 rating · 515+ reviewsHVAC & electrical, one teamPermits handledCA Lic #1081990
Furnace problems
we fix.
Gas furnaces in attics, closets, garages and crawl spaces. Every repair visit includes basic safety checks on the burners and venting.
Igniter and flame sensor faults
Furnaces that click, light and shut off are often a dirty flame sensor or a failing hot-surface igniter.
Blower runs but air is cold
Limit switches, pressure switches and inducer motors checked in order.
Short cycling
Overheating from restricted airflow, a dirty filter or an oversized furnace.
Noises and smells
Banging, squealing or a burning smell checked before the next cold night.
Safety checks
Venting, heat-exchanger visual check and carbon monoxide concerns raised in plain language.
CUPERTINO DETAILSFurnace repair
Furnace repair
for Cupertino.
Gas furnaces in Cupertino attics, closets and garages tend to fail on the first cold nights of the year. Most calls involve ignition, flame sensing or airflow.
01
Ignition faults
Igniters, flame sensors and pressure switches cause most no-heat calls. HAXX tests each one.
02
Safety checks
The heat exchanger, venting and gas connections are inspected, and carbon monoxide concerns are flagged.
03
Replacing later
BAAQMD rules set zero-NOx standards for new furnaces sold from 2029. Repairs are not affected, but it helps to plan the next system.
What customers say
about HAXX.
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.”
HOW A REPAIR VISIT WORKSFrom the first call
From the first call
to a working system.
01
Tell us the symptom
Brand, model and what it is doing. Photos of the label or error code help.
02
Diagnose on site
The technician tests the system and finds the cause, not just the symptom.
03
Approve the price
You see the repair price before work starts, and the options if a repair is not worth it.
04
Fix and test
The repair is completed and tested, or scheduled once the part arrives.
HAXX ON SITEReal work.
Real work.
Real homes and businesses.
A closer look at recent heating and cooling work by HAXX. Projects in Cupertino are marked with the city.
THE PEOPLE BEHIND THE WORKHands-on work.
Hands-on work.
A real look inside.
On site during a commercial VAV box repair: access above a suspended ceiling, equipment and the work in progress.
Explore recent projectsRecent Projects
System Recharge and Brazing Correction
System recharge and brazing correction.
Carrier Furnace Diagnosis and Repair
Carrier furnace diagnosis and repair.
Attic Plenum Resealing
Attic plenum resealing.
Gas Furnace Service
Gas furnace service.
Cupertino Main Panel Installation
Main panel installation.
Cupertino Main Panel Upgrade
Main panel upgrade.
Cupertino EV Charger Installation
Ev charger installation.
Cupertino Tesla Wall Connector Installation
Tesla wall connector installation.
GOOD TO KNOW
Furnace Repair in Cupertino: questions, answered.
Can I still repair my gas furnace in Cupertino?
Yes. Repairs are allowed. BAAQMD's future zero-NOx standard applies to the sale of new furnaces, not repairs.
Does a furnace replacement need a permit in Cupertino?
Yes. A like-for-like furnace without AC can qualify for the city's instant permit for licensed contractors. HAXX files it.
Should I replace my furnace with a heat pump?
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.
Is it safe to run a furnace that smells like gas?
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.
LET’S TALK ABOUT YOUR PROPERTYTell us what you need.
Tell us what you need.
We’ll start there.
Share the property, equipment and questions you have in mind.
(408) 901-8315
Call HAXX to discuss your property and scheduling.