Heater & Furnace Repair in Central Contra Costa, CA
Heater and furnace repair for Central Contra Costa homes
Cold winter mornings in Central Contra Costa 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.

- Covers
- 7 towns and 7 neighborhoods
- Power
- PG&E (MCE generation everywhere except Clayton)
- Permits
- Your city's building division, or Contra Costa County for Clayton (by contract), Saranap and Pacheco
Serving Central Contra Costa
From our Antioch shop, Central Contra Costa is a short drive over SR-4 or Kirker Pass Road, and we serve Concord, Clayton, Pleasant Hill, Walnut Creek and Martinez. Winter nights in Central County regularly drop into the 30s, and many 1950s and 60s homes still run older gas furnaces in the attic, garage or a hall closet. On every furnace repair in Central Contra Costa, we check the burners, flame sensor, venting and heat exchanger before we call the job done.
Main roads
- I-680
- SR-4
- SR-242
- SR-24
- Kirker Pass Rd
- Ygnacio Valley Rd
- Willow Pass Rd
- Clayton Rd
- Contra Costa Blvd
Other services in Central Contra Costa
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 Central Contra Costa?
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.
