The answer to 'how long does central air last' is that a well-maintained central air conditioning system typically lasts 15-20 years. The lifespan of a central air unit depends on several factors, including the quality of the equipment, how often it's used, and how well it's maintained through regular servicing and tune-ups.
Proper maintenance, such as changing air filters, cleaning the condenser coils, and scheduling annual tune-ups, can help extend the life of a central air system. Factors like climate, usage patterns, and installation quality can also impact the longevity of a central AC unit. While 15-20 years is the average lifespan, some high-quality systems may last up to 25 years with excellent care and maintenance.