Why This Distinction Matters
Foundation cracks are one of the most anxiety-inducing things a new homeowner can discover. But not every crack signals a structural problem — some degree of settling is normal in any new home.
What Normal Settling Looks Like
New homes settle as the soil beneath them compresses and as building materials adjust to seasonal humidity changes. Normal settling typically produces small, vertical hairline cracks in poured concrete foundations, minor drywall cracks at corners or above doorways, and small gaps that open and close slightly with the seasons.
What Warrants Closer Attention
Horizontal cracks in a foundation wall, especially wider at one end, can indicate soil or hydrostatic pressure problems. Cracks wider than a quarter inch, or that continue to widen over several months, are a warning sign. Doors and windows that progressively stick more over time, floors that visibly slope, or gaps between walls and ceilings that grow larger are all signs worth having assessed.
The Role of Measurement
Rather than relying on memory, measure crack width with a simple crack gauge and note the date. Re-measure every few months. A crack that is stable in width over a year is behaving very differently than one that is steadily widening.
When to Bring in a Structural Engineer
If you observe any of the warning signs above, a structural engineer's assessment is worth the cost for the clarity it provides. Their written report either gives you peace of mind or gives you the documentation needed to support a structural warranty claim.
Reporting a Suspected Structural Defect
Structural warranty claims should always be reported in writing, with photos, measurements, and dates included. Because the structural warranty period is the longest of the standard tiers, there is no need to rush a claim — but there is also no reason to delay once you have credible evidence of a problem.
Most cracks are normal. The ones that are not are worth catching early — and worth documenting carefully.