Question 1

How much does a furnace service cost?

Accepted Answer

A standard furnace service usually falls between $90 and $250 for a routine inspection and tune-up. More detailed maintenance that includes deep cleaning, combustion testing, and airflow adjustments may range from $150 to $350. Annual maintenance plans that include priority service and multiple visits often cost between $180 and $500 per year. If worn parts such as an igniter, flame sensor, blower motor, or heat exchanger need replacement, the total cost increases depending on the component and labor involved.

Question 2

How often does a furnace need to be serviced?

Accepted Answer

Most furnaces should receive professional maintenance once every year, preferably before the heating season begins. An annual fall appointment helps confirm safe operation and steady performance during peak winter demand. Older systems, high-efficiency units with complex controls, or homes with heavy winter usage may benefit from additional inspections. Homeowners should still replace air filters regularly throughout the year to support proper airflow.

Question 3

What does furnace maintenance include?

Accepted Answer

A professional furnace maintenance visit includes inspection, cleaning, and performance testing. Technicians examine the heat exchanger for cracks, clean or replace air filters, and check the blower motor for proper airflow. They calibrate the thermostat, inspect electrical connections, test safety controls, and evaluate the burner assembly and flame sensor. The service often includes lubrication of moving components and confirmation that the system cycles correctly without short cycling or ignition delay.