Basement Waterproofing in Winnipeg

Most of the foundation problems Winnipeg Foundation Experts gets called about start as water problems. Water saturates the clay, the clay swells and pushes, and the wall carries a load it was never designed for. Fixing the wall without fixing the water buys a few years at best.

Finding the Entry Point First

A damp patch on a basement wall is rarely where the water got in. It travels along the top of the footing, through a cold joint, or down the outside of the wall until it finds a crack. So we start outside, not inside.

We look at where downspouts discharge and whether they are carrying water far enough from the house. We check the grade in the first couple of metres, because ground that has settled toward the foundation over the years funnels every rainfall straight down the wall. Window wells get checked for drainage, and we look at whether the weeping tile is doing anything at all.

Only then does it make sense to talk about which waterproofing method fits.

Exterior Waterproofing

The exterior approach is the thorough one. We excavate along the affected wall down to the footing, clean the concrete face, and apply a waterproof membrane. A dimpled drainage board over top gives water a path down to the weeping tile instead of sideways into the wall.

While the trench is open we can replace failed weeping tile, correct the slope of the backfill, and deal with anything the excavation reveals. It is more disruptive than interior work and it addresses the cause rather than the symptom.

Interior Drainage

Where excavation is not practical, an interior system is the alternative. A channel is cut around the inside perimeter of the slab, drainage pipe is laid in gravel, and the water is routed to a sump pit and pumped out.

This does not stop water reaching the wall, so it is management rather than prevention. On some houses, though, it is the right answer, and pretending otherwise to sell a bigger job is not how we work.

Why Winnipeg Basements Leak

The clay under this city is dense and slow to drain. When it is saturated, water sits against your foundation instead of moving away through the soil. In a dry summer the same clay shrinks and pulls back from the wall, opening a gap that the next heavy rain runs straight down.

That cycle is why a basement that stayed dry for twenty years can start leaking without anything obvious having changed. It is also why drainage correction is often the cheapest part of the fix and the part that matters most.

We look at it and tell you where the water is coming from. The assessment is free either way. Related work includes foundation crack repair when the entry point is a specific crack, weeping tile installation when the drainage has failed, and sump pump installation to move the water once it is collected. We work throughout St. Vital and Transcona, where flat lots and heavy clay make drainage the usual culprit.

What's Included

• Exterior excavation, membrane and drainage board
• Interior drainage systems where excavation is not practical
• Downspout, grade and window-well correction
• Diagnosis of the actual entry point before any quote
• Written scope before work starts

Other Services We Offer in Winnipeg

• Foundation Inspection
• Foundation Crack Repair
• Sump Pump Installation in Winnipeg
• Sump Pump Repair & Replacement
• Weeping Tile Installation in Winnipeg
• Egress Window Installation in Winnipeg