An HVAC tune-up typically costs between $100 and $200, depending on the size of your home, the type of system you have, the age of the system and other factors.
Repairing an HVAC system costs an average of $1,500. An HVAC repair typically costs between $120 and $1000 or more. The cost of an HVAC repair and the cost of an HVAC tune-up are vastly different. It's crucial to remember that if you're careful about the latter, you can avoid the former.