Troubleshooting · 5 min read

Spot foundation problems early

The 10 visible signs that something is moving under your house. Most homeowners miss these for years.

What you'll learn

  • Why doors that stick are usually a foundation symptom, not a humidity problem
  • How to tell a cosmetic crack from a structural one (the credit-card test)
  • The marble test for floor slope (and what slope range matters)
  • What stair-step cracks in stucco mean
  • When to monitor and when to call

Step by step

  1. Walk the exterior perimeter and look at every window/door corner for diagonal cracks.
  2. Open and close every door, note which ones stick and which side of the house they're on.
  3. Roll a marble across each main living area. Note direction and severity.
  4. Look at the slab-stem-wall joint outside for gaps or efflorescence.
  5. Check baseboards for gaps in the middle of the wall (not the corners).
Safety note

Found 3+ signs in the same part of the house? That's a pattern, not a coincidence.

Rather have a pro handle it?

Call and we connect you with a local foundation pro in San Diego County.

Serving San Diego County

Ready for foundation service that actually answers the phone?

Call and describe what you are seeing. We connect you with a local foundation pro.