Air conditioners typically need to be replaced every 10 to 15 years, depending on factors such as usage, maintenance, and the quality of the unit. Well-maintained systems can sometimes last longer, while older or poorly maintained units may need replacement sooner. Signs that it’s time for a new AC include frequent breakdowns, rising energy bills, uneven cooling, or if your system still uses outdated refrigerants like R-22. Upgrading to a modern, energy-efficient unit can improve comfort, lower energy costs, and provide better overall performance. Regular maintenance can help extend the lifespan of your air conditioner, but when repairs become too costly, replacement is often the best option.