Heater & Furnace Repair in Discovery Bay, CA
Furnace not heating in Discovery Bay?
Cold winter mornings in Discovery Bay are when an old furnace shows its age. Blue Star Heating & Air repairs gas furnaces and heat pumps - igniters, flame sensors, blower motors, thermostats, limit switches and more - and tells you plainly whether the unit is still safe to run.

- From our Antioch shop
- About 17 miles southeast
- ZIP code
- 94505
- Power
- PG&E delivery, MCE generation
- Permits
- Contra Costa County Dept. of Conservation & Development – Building Inspection
Serving Discovery Bay
Discovery Bay is about 17 miles southeast via SR 160 and SR 4 from our Antioch shop, and we serve all of it, including Discovery Bay Country Club, Ravenswood and Discovery Bay Marina. Most Discovery Bay homes heat with PG&E gas, and many furnaces date to the mid-1990s, so we service, repair and replace them before the cold months arrive. On every furnace repair in Discovery Bay, we check the burners, flame sensor, venting and heat exchanger before we call the job done.
Main roads
- SR 4
- Discovery Bay Blvd
- Bixler Rd
- Clubhouse Dr
- Byron Hwy
Around Discovery Bay
- Discovery Bay Golf & Country Club (1475 Clubhouse Dr)
- Discovery Bay Marina
- Ravenswood Park
- Timber Point Elementary
- 19 miles of levees maintained by Reclamation District 800
Other services in Discovery Bay
All servicesFor businesses
Questions before you call
Why is my furnace blowing cold air?
Common causes are a thermostat set to 'fan on', a dirty flame sensor, a failed igniter, a clogged filter tripping the high-limit switch, or a heat pump stuck in defrost. We test each one and fix the actual cause.
How much does furnace repair cost in Discovery Bay?
Small fixes like a flame sensor or igniter cost far less than a blower motor or control board. We diagnose first and quote the repair before starting, and we'll tell you if replacement makes more sense.
What should I do if I smell gas near my furnace?
Leave the house, don't flip switches, and call PG&E (or your propane supplier) or 911 from outside. Once it's safe, call us to find and repair the cause.
