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Exterior basement waterproofing

Stop water at the source by sealing the outside of your foundation wall. Serving homes across the GTA.

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Greater Toronto AreaToronto, York, Peel, Durham, Halton. Written quotebefore any work starts. 8 AM – 8 PM, 7 days.A real person answers.
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Exterior waterproofingSigns you need it

Is this your problem?

Exterior waterproofing is the most complete fix for a leaking basement wall. The soil is dug out down to the footing, the outside of the foundation is sealed, and water is given a clear path down to the drainage pipe instead of through your wall.

  • Water seeping in where the wall meets the floor
  • Leaks along a whole wall, not just one spot
  • Damp walls after heavy rain or spring thaw
  • White chalky residue (efflorescence) on the concrete
  • Interior patches and sealers haven’t lasted
  • Pavers, soil or a deck sloping toward the house
How the job is done4 steps

  1. Dig to the footing

    Soil is excavated along the leaking walls, down to the base of the foundation.

  2. Repair and seal the wall

    The wall is cleaned, cracks are patched, and a waterproof coating is applied.

  3. Membrane and drainage

    Dimpled drainage membrane goes on the wall, with new weeping tile in clear gravel at the footing.

  4. Backfill and restore

    The trench is filled and graded away from the house, and pavers or landscaping are put back.

Project photosSee the full gallery
Trench dug down to the footing
Trench dug down to the footing
Waterproof coating on the foundation
Waterproof coating on the foundation
Drainage membrane along the wall
Drainage membrane along the wall
Backfilled and levelled
Backfilled and levelled
Membrane going on a side-yard wall
Membrane going on a side-yard wall
Membrane on a brick home, ready to backfill
Membrane on a brick home, ready to backfill
QuestionsExterior waterproofing
Do you have to dig up my whole yard?

Usually only along the walls that leak, which is often one or two walls. Pavers, decks or landscaping right beside the wall may need to be lifted and put back.

Is exterior better than interior waterproofing?

Exterior work keeps water off the wall in the first place. Interior work manages water that gets through and carries it to a sump pump. Exterior is more work outside; interior means opening the bottom of finished basement walls. The on-site assessment decides which fits your house.

Will it disturb the inside of my basement?

Most of the work happens outside. Inside finishes are usually left alone.

What time of year can it be done?

Most exterior work happens when the ground isn’t frozen. Ask about timing when you book your visit.

Request a callbackTakes about a minute

Get your exterior waterproofing quote.

Send the form, or call or text a photo to 416-995-6504. We'll go over it with you and book a time for a waterproofing pro to take a look.

Calls answered 8 AM – 8 PM, Monday to Sunday. Forms sent after 8 PM get a call the next morning.

Your basement

We'll call you back to go over it.

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