We recommend that you choose a reasonably level location for your Blue Sky swing set to insure the greatest amount of stability. If your kit is being installed by one of our Independent Area Managers, they will advise you on site selection. Our prices do not include leveling of the selected site. If a level site is chosen there will be minimal need for digging during the installation. If site preparation is required and it is necessary to remove excess soil, there is an additional charge of $50.00/hr after the first 30 minutes of digging. This additional payment is due when the installer has completed the installation.