The only answer to this question is It depends. It all depends on the size and scope of the loss. Completely drying a structure depends on the type of water damage, how bad it was, how long the water dwelled, and the type of building materials involved. For example, concrete takes much longer to dry than wood. Many times, water damage to your home or business takes 2 to 3 days to dry. However, properties exposed to water damage for a long time will take longer to dry!