A new sprinkler system is a big investment, but it can pay off in the long run. An in-ground system typically costs $500 to $1,000 per zone, and most homes need 3 to 5 zones. These systems can save you money on your water bill and help you to maintain a healthy lawn. In addition, they can also increase the value of your home. If you are thinking about installing a new sprinkler system, be sure to talk to a professional about your options.