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Exterior foundation waterproofing

Exterior work stops water at the outside face of the wall; access, depth and landscaping all affect the scope.

Vertical dimpled membrane waterproofing on a basement wall
Photo: Patrick Oberdörfer, Wikimedia Commons, CC BY-SA 4.0

Exterior work stops water at the outside face of the wall; access, depth and landscaping all affect the scope.

Do this first

  • Keep electrics and cords away from standing water.
  • Move belongings off the floor and away from damp walls.
  • Check that the sump pump runs and its discharge is clear, if it is safe.
  • Photograph where water comes in and note whether it follows rain or snowmelt.

Wet basement, leaks or cracks? Tell us what you see. Request an inspection