Sign installation can be easy or difficult. The medium you choose answers the level of difficulty you will have. Paper, cardboard, and even vinyl are is much simpler and inexpensive, when compared to neon and LED displays. Mounting location is determined by the available facade space as well as the customer's specifications. Some customers have definite sign installation plans with all dimensions verified in advance. Other customers may provide verbal instructions about the mounting location without knowing the actual dimensions. Contractors should always verify the precise mounting location before making a trip to the jobsite. You can't assume that the owner will be present when you arrive for the sign installation, and nobody's going to pay you to wait.