Foundation
What you're seeing
Not every crack is an emergency, but stair-step cracks in block, diagonal cracks above doorways, and cracks that keep widening are signs your foundation is moving. Water follows every crack it can find.
Common causes
- Foundation settling into soft or expansive clay soil
- Hydrostatic pressure against foundation walls
- Poor drainage saturating soil at the footing
- Seasonal shrink-and-swell of Georgia clay
