The first step in getting a new air conditioner installed is determining what size you need. You don't want one without sufficient power to cool your home, and getting an air conditioner that's too big can be more expensive and less comfortable. An annual inspection allows a technician to identify dirty coils and burned out contactors before they cause long term damage to your system. Many dealers provide priority service for their customers who have an annual maintenance or service agreement. Bi-annual preventative maintenance will ensure that your system runs as efficiently as possible.