1. Cracks in Interior Walls
Cracks in drywall — especially stair-step cracks or cracks fanning out from the corners of doors and windows — are one of the most common signs your foundation is moving. Hairline cracks can be normal, but widening or recurring cracks are a red flag.
2. Cracks in Exterior Walls
Look at your outside stucco, brick, or block. Diagonal cracks, stair-step cracks in masonry, or cracks wider than a credit card's edge often signal foundation settlement.
3. Sloping, Sagging or Spongy Floors
Floors that slope, dip in the middle, or feel bouncy and "spongy" underfoot usually mean the support below has settled or weakened. Drop a ball — if it rolls on its own, get it checked.
4. Sticking Doors & Windows
When a foundation shifts, it pulls door and window frames out of square. If doors suddenly stick, drag, or won't latch — and it's not just humidity — your foundation may be the cause.
5. Cracks in the Floor or Slab
Cracks across a concrete slab, tile that keeps cracking in the same spot, or sections of floor that tilt are classic signs of slab movement.
6. Bulging Stucco or Plaster
Walls that bulge, bow, or have areas of cracked and popping stucco or plaster are reacting to structural stress from below.
7. Tilting or Leaning Chimney
A chimney that leans, tilts, or is pulling away from the house is a serious warning sign — chimneys are heavy and settle quickly when the soil beneath them gives way.
8. Gaps Around Walls & Ceilings
Gaps between walls and ceilings, walls and floors, or where cabinets and counters meet the wall mean parts of your home are moving in different directions.
9. Crumbling or Cracked Stem Wall
Inspect your foundation's perimeter. Crumbling concrete, exposed or rusting rebar, and cracks in the stem wall indicate deterioration that needs attention.
10. Water Pooling Near the Foundation
Standing water, soggy soil, or poor drainage against your foundation is the #1 cause of foundation failure in Southern California. Where water goes, foundation trouble follows.
