1. Cracks in Interior Walls
Diagonal cracks from window/door corners. Worry when: wider than 1/4 inch, growing, diagonal, or horizontal.
2. Sticking Doors & Windows
Multiple doors sticking simultaneously = foundation, not hardware.
3. Uneven or Sloping Floors
Place a marble on the floor. If it rolls consistently, that's differential settling.
4. Exterior Brick Cracks
Stair-step cracks following mortar joints. Walk entire perimeter.
5. Gaps Between Walls and Ceiling/Floor
Crown molding pulling away, baseboards separating. Structure being pulled apart.
6. Cracked or Displaced Trim
Rigid trim cracks and separates as foundation shifts.
7. Visible Foundation Cracks
Hairline (under 1/8") usually cosmetic. Wider than 1/4", offset, or wider at top = active movement.
8. Chimney Separation
Chimney pulling away or leaning on its separate pad.
9. Countertop & Cabinet Separation
Countertops pulling from walls. Cabinets no longer flush.
10. Nail Pops
Clusters indicate structural movement stressing framing.
11. Plumbing Problems
Unexplained water bills, damp spots from cracked underground lines.
12. Bouncy/Sagging Floors
In pier-and-beam homes: deteriorating beams or shifting piers.
Don't panic, but don't wait. Get 3+ professional opinions. Most offer free inspections.
What to Do
Step 1: Document with photos and dates. Step 2: Get 3+ quotes. Step 3: Consider an independent engineer ($300-$1,500). Step 4: Don't delay.