Depending on the brand and size of your air conditioner, it could cost anywhere from $1,500 to $4,000 to have it replaced. If your air conditioner is more than 10 years old, it may not be worth repairing and you may be better off replacing it with a newer model. Additionally, if your air conditioner is not cooling your home sufficiently or if it's making strange noises, it's probably time for a new one. If you're looking for a new air conditioner, there are a few things to consider before making a purchase. You'll want to decide on the size of the unit (measured in BTUs), how often you plan to use it, and the climate

It depends on the size of your air conditioner and the type of replacement unit you choose. For a small window unit, the cost could be as low as $200. For a central air conditioning system, the cost could be as high as $5,000 or more.