Not every crack means the same thing
Hairline shrinkage cracks can occur in concrete without indicating major movement, while horizontal cracking, stair-step masonry cracks, widening gaps, or cracks paired with sticking doors and uneven floors can deserve closer attention. The pattern matters more than the mere presence of a crack.
What repair may involve
Depending on the cause, repair can range from sealing a non-moving crack to stabilizing a wall or addressing settlement beneath the footing. Waterproofing a crack and stabilizing a moving structure are different jobs, so a diagnosis should come before a repair recommendation.
When to call
Call when a crack is widening, offset from one side to the other, leaking repeatedly, accompanied by wall movement, or part of a broader pattern of settlement symptoms. If there is an immediate collapse or safety concern, stay clear of the area and contact an appropriate emergency or structural professional.
Related foundation guides
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