How much does it cost to fix the heat in my car?

The heater in my car is not working. It was fine in the summer, but it has become a problem now that it’s getting cold out. I’ve been putting off repairs because I’ll have to pay out of pocket to fix it. How much does it cost to repair the heat in a car?

Melanie Krieps Mergen · Updated on
Reviewed by Shannon Martin, Licensed Insurance Agent.
The cost to fix the heater in your car will ultimately depend on the reason why your heat is not working. Here are some of the common causes of a faulty heating system and how much they cost to fix:
  • Faulty thermostat: A broken thermostat replacement can cost between $140 and $300.
  • Low antifreeze or coolant: You can
    change your antifreeze
    and coolant yourself and pay for the cost of supplies, which runs between $10 and $50.
  • Faulty blower motor resistor: The blower motor resistor helps mitigate airflow from your car’s blower motor. The total cost of parts ranges from $340 to $400 to replace the blower motor resistor in your vehicle.
  • Broken heater control valve: Your car’s
    heater control valve
    is responsible for controlling the flow of coolant from the engine to the heater core. If this part is broken, it can cost anywhere from $60 to $360 to replace, depending on your car’s make and model.
If you can pinpoint the issue yourself, it may not be as expensive to deal with—but if you’re having trouble determining exactly why your car’s heater is broken, you may want to let a professional diagnose the issue before attempting repairs. 
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Jerry partners with more than 50 insurance companies, but our content is independently researched, written, and fact-checked by our team of editors and agents. We aren’t paid for reviews or other content.

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