There are two main types of floodwater damage: surface and structural. Surface water damage occurs through cracks or holes when moisture enters the walls, ceilings, floors, etc. These types of water damage usually require repairs to drywall, carpets, and other items affected by the water. Structural water damage occurs when significant water enters the structure itself. It could mean damaged electrical wiring, plumbing, or even the foundation. It’s wise to hire a pro to inspect the damage and determine which type of water damage you have before deciding how to proceed.