Interior basement waterproofing

How it works

1. The floor is cut along the wall inside the basement.
2. New drain tile is laid beside the footing, in clean gravel.
3. A dimple membrane goes on the wall so water runs down into the new drain.
4. The drain runs to a sump pit, and a pump sends the water outside.
5. The floor is patched.

When it makes sense

• Driveways, decks, trees or a neighbour's house make digging outside hard
• The basement is unfinished or due for renovation anyway
• Water comes in where the wall meets the floor

Cost

Interior drainage generally runs about $70 to $195 per linear foot, roughly $3,000 to $9,000 for many homes. (Saskatoon cost data)

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