Stair step and horizontal cracks often indicate that there is some structural damage to your building. Stair step cracks are often associated with an uneven settling of the foundation.

Wall cracks, particularly in the basement, are a homeowners’ worst nightmare. Many homeowners imagine that these cracks are a sign of a serious structural problem that will cost them an arm and leg to repair.

You should be worried about horizontal cracks because these cracks are also associated with other problems such as wall bowing. When a foundation wall bows and cracks further, it can lead to serious structural damage that will be costly to repair.