How do I prevent my Ottawa retaining wall from leaning after frost heave?

Question

Accepted Answer

Frost heave is the primary reason retaining walls lean, crack, and eventually fail in Ottawa, and the fix almost always comes down to what happens behind and beneath the wall rather than the wall itself. If your wall is already leaning, that's a sign the drainage and base preparation weren't adequate for Ottawa's freeze-thaw conditions — and unfortunately, cosmetic fixes rarely solve the underlying problem.

Why Ottawa Walls Heave More Than Most

Ottawa's frost penetrates 1.2 to 1.5 metres into

Retaining Walls

How do I prevent my Ottawa retaining wall from leaning after frost heave?