Ontario Basement WaterproofingOntario

Exterior foundation waterproofing

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

Worker spray-applying waterproofing material to an exterior concrete wall
Photo: Siamsens, Wikimedia Commons, CC BY-SA 3.0

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