Few items create more concern during a showing than visible foundation cracks. Fortunately, not every crack indicates a major structural issue.

Understanding the difference can help you have better conversations with buyers before the inspection.

Hairline Cracks:
Small shrinkage cracks are common in concrete foundations and are often considered normal. Hairline cracking typically just needs to be monitored for further cracking and separation.

Horizontal Cracks:
Horizontal cracking may indicate lateral pressure from surrounding soil and need to be evaluated further, repaired or monitored closely. Horizontal cracks are generally considered the more serious cracks when it comes to foundations.

Large Stair-Step Cracks:
Stair-step cracking in masonry walls can sometimes indicate movement and should be evaluated carefully. This type of cracking is generally due to settling corners.

Water Intrusion Along Cracks:
Evidence of moisture entering through cracks can create its own moisture issues, but also provides insight into what likely caused the crack in the first place. Grading and drainage details will need to be addressed along with crack repair.

Doors and Windows:
If cracks are accompanied by sticking doors, sticking windows, or sloping floors, additional deeper structural evaluation is likely warranted.

The most important thing to remember is that cracks tell a story. The inspection helps determine whether that story is normal settlement, moisture-related movement, or something more significant.