Basement Waterproofing: frequently asked questions

Interior drainage manages water that gets in and is less disruptive. Exterior waterproofing stops it at the wall but requires excavation. The right choice depends on the source of water.

If water collects under or around the basement floor, a sump pump with a battery backup is the usual way to remove it.

Often it helps a lot: soil sloping away from the house and downspouts discharging away from the foundation reduce water at the walls.