Texas Summer Is Coming: The HVAC Tune-Up That Prevents a $6,000 EmergencyA compressor failure during a 105-degree July week in Prosper costs between $4,500 and $7,000 to replace. A seasonal HVAC tune-up runs about $130–$180. I've watched owners skip the second number and pay the first. Every single time, it was avoidable.HVAC filter chang...