What are the common causes of settling cracks in buildings and how can they be effectively prevented or repaired?

Common causes of settling cracks in buildings include foundation issues, soil movement, and structural stress. To prevent settling cracks, proper foundation design and maintenance are crucial. Regular inspections and repairs can help identify and address any issues early on. Repairing settling cracks may involve filling them with epoxy injections, installing support beams, or even underpinning the foundation to stabilize the building. Consulting with a structural engineer is recommended for a proper assessment and solution.