HVAC systems are manufactured to withstand high use and last an average of 15-25 years. Climate and frequency of use impact an HVAC system’s longevity and while improvements in insulation and sealing a home reduces heat and cooling, it traps chemicals, dust, and other particles which can have a negative impact on HVAC appliances and controls. HVAC maintenance, including annual cleanings and tune-ups, can extend system life. Air conditioner maintenance is best performed in early spring while furnace maintenance is best performed in early fall. Typical HVAC system service includes cleaning condensers and coils, checking overflow valves, tightening connections, and a general inspection. Learn about HVAC system longevity and maintenance that could extended HVAC system life.