Foundation cracks are a common occurrence in Montreal, especially on clay soil. Clay dries up and shrinks, causing foundations to shift and cracks to appear.
Foundation cracks need to be repaired, otherwise moderate or major leaks can occur in your basement. As you may know, water leaks lead to mould and mildew. In addition, your foundation deteriorates more quickly in the presence of water. Water may also affect the structure of the house or building, exterior cladding, and openings, including doors and windows.