Furnace Repair in Cornwall, Ontario

Furnace Not Working? Let an HVAC Technician Find the Problem

When your furnace isn't working properly, you don't need to know exactly what's wrong before calling an HVAC technician. Most homeowners don't. You may simply notice that your furnace won't turn on, is blowing cold air, keeps shutting off, won't ignite, or isn't keeping your house warm.

SDG Duct Cleaning provides residential furnace repair in Cornwall, SDG and surrounding Eastern Ontario communities during our regular service hours. Despite our name, we're not simply a duct-cleaning company. We're HVAC technicians with years of hands-on experience troubleshooting, servicing and repairing residential gas furnaces and heating systems.

A furnace that isn't working can have many different causes. Sometimes the problem is relatively simple, such as a dirty flame sensor, blown low-voltage fuse, thermostat issue or loose electrical connection. Other times we may be dealing with a failed igniter, inducer motor, pressure switch, control board, gas valve, blower motor or another furnace component.

That's why we don't believe in guessing at a furnace repair.

If your furnace isn't operating properly, our first job is to determine where the furnace is stopping in its normal sequence of operation and why. From there, we can explain what we found, what needs to be repaired and whether any parts are required.

What Is Your Furnace Doing?

You may need a furnace service call if you're experiencing problems such as:

  • Furnace won't turn on
  • Furnace stopped working
  • No heat in the house
  • Furnace blowing cold air
  • Furnace starts and then shuts off
  • Furnace keeps turning on and off
  • Thermostat is calling for heat but furnace won't start
  • Furnace fan is running but there's no heat
  • Gas furnace won't ignite
  • Furnace making an unusual noise
  • Furnace flashing a red light or error code
  • Some rooms aren't getting enough heat

You don't need to determine which furnace part has failed before contacting us. Tell us what the furnace is doing, and we'll diagnose the problem from there.

Having trouble with your furnace? Contact SDG Duct Cleaning to schedule furnace repair in Cornwall or the surrounding SDG area.