Furnace diagnostics and repair
We test igniters, flame sensors, inducer motors, limit switches, and pressure switches to restore safe, steady heat.
Trusted heating service since 1990
Heating and Furnace Repair in San Mateo
Cold rooms, short cycling, and no-heat breakdowns need real diagnostics, not guesswork. We restore dependable heat with safe repairs and installation options sized to your home.
5.0 stars from local customersFast no-heat responseCA Lic. #889684
No heat right now?
Pilot problems, ignition faults, and blower failures handled quickly by experienced technicians.
Speak with a TechnicianWhat We Offer
Heating systems fail in predictable ways. Our process catches mechanical, airflow, and safety issues before they become expensive emergencies.
Heat pump troubleshooting
Balance point evaluation, defrost cycle checks, reversing valve diagnostics, and airflow tuning for efficient winter operation.
Combustion and safety testing
Gas pressure checks, carbon monoxide screening, venting inspection, and heat exchanger evaluation for peace of mind.
Airflow and static pressure correction
We measure total external static pressure, inspect ducts, and adjust blower performance to stop hot and cold room complaints.
Furnace replacement and upgrades
Proper equipment matching, venting compliance, and staged or variable-speed options for quieter and more even heating.
Seasonal heating tune-ups
Pre-winter maintenance that reduces breakdown risk, improves efficiency, and extends the life of your heating equipment.
Brands We Service
We service established heating brands used in Peninsula homes, from standard furnaces to modern dual-fuel and heat pump setups.
Carrier
Lennox
Trane
Bryant
Rheem
Goodman
Heating Service FAQs
Practical guidance for furnace and heat pump repair, maintenance, and replacement planning.
Why is my furnace running but not warming the house?
Common causes include restricted airflow, dirty flame sensors, low gas pressure, or control board faults. We test each stage of operation from call for heat to supply air temperature so the root issue is corrected.
How often should a furnace be serviced?
At least once per year, ideally before the first cold stretch. Annual service catches worn igniters, weak capacitors, venting issues, and airflow problems before they become no-heat calls.
Do you repair both gas and electric heating systems?
Yes. We service gas furnaces, electric furnaces, and heat pump systems for residential and light commercial properties in San Mateo and nearby cities.
When should I replace my old furnace?
If the system is 15 to 20 years old, has rising repair frequency, or shows signs of heat exchanger deterioration, replacement can improve comfort and operating cost. We provide clear options based on measured performance.
Can you respond quickly to emergency no-heat calls?
Yes. We prioritize no-heat and safety-related issues and dispatch quickly for homes with vulnerable occupants or severe temperature drops.
Ready to Get Comfortable?
Whether it's a repair, installation, or maintenance, we're here to help. Free estimates on all new installations.