Skip to content
Blue Star Heating & Air Conditioning

Heater & Furnace Repair in Northgate, Walnut Creek, CA

Heater and furnace repair for Northgate homes

Cold winter mornings in Northgate 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.

Two Blue Star technicians servicing an upright gas furnace in a garage, one kneeling at the burner compartment
From our Antioch shop
About 21 miles southwest
ZIP code
94598
Power
PG&E delivery, MCE generation
Permits
City of Walnut Creek Building Division

Serving Northgate

We serve every part of Northgate, including Northgate High School, Foothill Middle School, Walnut Acres Elementary and Shell Ridge Open Space - it's about 21 miles southwest via Kirker Pass Road and Ygnacio Valley Road from our Antioch shop. Most Northgate homes are 50-plus years old, and with freezing nights common in winter, an older furnace near Walnut Acres Elementary or Shell Ridge Open Space deserves a fall checkup. On every furnace repair in Northgate, we check the burners, flame sensor, venting and heat exchanger before we call the job done.

Main roads

  • Ygnacio Valley Rd
  • North Gate Rd
  • Oak Grove Rd

Around Northgate

  • Northgate High School
  • Foothill Middle School
  • Walnut Acres Elementary
  • Shell Ridge Open Space nearby
Also serving all of Walnut Creek

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 Northgate?

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.

Call Blue Star Heating & Air to book furnace repair in Northgate.

(925) 584-2428 Quote