The ground changes noticeably across this stretch of Georgian Bay — clay in the lowlands, sand along the shore, shallow soil over rock on the escarpment. It changes the repair too.
Coverage
If your town is not on the list, ask anyway — the boundary is about travel time, not a line on a map.
Phone
Hours
Open 24 hours, 7 days
Serving
Collingwood, Wasaga Beach, The Blue Mountains and Clearview
Local ground
Two housing stocks in one town. The older core near Hurontario Street has stone and block foundations with original clay drainage, on a shallow floodplain. The subdivisions and chalet developments built since the 1990s have poured walls and plastic drains — their common failure is a shrinkage crack plus a downspout discharging into the backfill.
Sand, and a water table that moves with the bay. Water rarely sits against a wall long enough to soak through it; instead it comes up at the wall/floor joint and through the slab. Interior drainage into a properly sized pit is the usual answer, and sealing the wall alone is money wasted.
Escarpment slopes and a lot of walk-out and split-level basements built into a grade. Water arrives sideways along the slope, so it concentrates on the uphill elevation. Shallow soil over rock means backfill quality is decisive.
Heavy clay and a lot of older rural and village housing, including block and rubble foundations that were never waterproofed to begin with. Slow steady pressure rather than sudden flooding — efflorescence, damp along a whole elevation, and mortar you can rake out with a screwdriver. Block walls are drained rather than injected, so it is usually exterior work or a replacement drain.
Timing
Across all of these towns the busiest weeks are the melt, not the thunderstorm season. A deep Georgian Bay snowpack releases into ground that is still frozen a foot down, so the meltwater cannot go vertically — it runs along the top of the frost, collects in the loose backfill beside your foundation, and stands there.
That is why so many basements here leak once a year, in the same fortnight, and are dry the rest of the time. It is also why "it only happens in spring" is not a reason to leave it.
Tell us where the house is and what you are seeing, and we will arrange a look at it.