Foundation Cracks: Visible Warning Signs

Visible clues to document

Photograph both a close view and a wider view that shows location and scale. Note whether the condition appears active, repeated, recently repaired, or associated with weather or system use.

• Crack direction, width variation, displacement, and whether it crosses blocks, bricks, or adjacent finishes.
• Related sticking openings, uneven floors, wall separation, water entry, or exterior drainage problems.
• Prior patching, monitoring marks, new finishes, or changes reported over time.

Reasonable next steps

• Photograph the crack with something for scale and note whether one side sits higher than the other.
• Ask the seller about prior foundation repairs, engineering reports and any transferable warranty.
• If the inspector flags movement, book a structural engineer early so the written report arrives before your contingency deadline.

Who to contact

For a property-specific assessment, contact a licensed structural engineer or appropriately qualified foundation professional. Ask for findings in writing and request a defined scope before authorizing invasive testing or repair work.