How Much Does the Average HVAC Repair Cost? Most HVAC repairs cost between $250 and $900, with the average homeowner paying around $450 to $650 for a single service visit and repair. Minor fixes like replacing a thermostat or sensor can cost under $200, while major component failures — such as a compressor or blower motor — can exceed $1,500. … Continue reading How Much Does HVAC Repair Cost?