No heat
Thermostat, power, gas supply, ignition and control-board testing to find why the furnace will not fire.
FURNACE REPAIR · FOSTER CITYFurnace Repair
Furnace Repair
in Foster City, CA.
Furnace not lighting, cycling off or locking out? HAXX repairs gas furnaces in Foster City homes, including closet and garage units in townhomes.
Serving Sea Colony, The Islands, Lido Island, Beach Park, Bay Vista and Marina Point and the rest of Foster City. 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.
FOSTER CITY DETAILSFurnace repair
Furnace repair
in Foster City.
Many Foster City furnaces sit in hall closets, garages or attics of 1960s to 1980s homes, where poor return air and dirty filters shorten their life.
01
Ignition and flame faults
Dirty flame sensors, worn igniters and failed pressure switches cause most no-heat calls.
02
Airflow and overheating
Restricted returns in closet installs trip high-limit switches. HAXX checks filters, blowers and ducts.
03
Safety checks
Every visit includes a look at venting and the heat exchanger, with combustion concerns explained plainly.
What customers say
about HAXX.
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.”
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.
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.
Heat Pump Installation
Heat pump installation.
Outdoor Heat Pump Installation
Outdoor heat pump installation.
Heat Pump Air Handler Installation
Heat pump air handler installation.
Heat Pump Air Handler Service
Heat pump air handler service.
GOOD TO KNOW
Furnace Repair in Foster City: questions, answered.
Can I keep repairing my gas furnace?
Yes. The BAAQMD zero-NOx rule covers sales of new furnaces starting in 2029, not repairs to existing ones.
What makes a furnace light and then cut out?
Often a dirty flame sensor, a blocked filter causing overheating, or a venting problem. HAXX tests each on site.
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.