A typical AC unit lasts between 10 to 15 years, depending on factors such as maintenance, usage, and climate. Regular maintenance, including annual inspections, filter changes, and cleaning, can extend the lifespan of the unit. Units in regions with harsh climates or heavy usage may experience a shorter lifespan. Upgrading to a new, energy-efficient model after this period can improve cooling performance, reduce energy costs, and take advantage of newer technology features, ensuring your home remains comfortable during the hot months.