Seasonal foundation issues

The useful thing about seasonal movement is that it gives you a baseline. If a crack returns to the same width every wet season, it is cycling. If each dry season leaves it wider than the last, it is progressing. Only a record over time can tell you which — which is why dated photos are worth more than any single inspection.

Seasonal timing also affects sales pressure. Drought years produce spikes in foundation complaints and in foundation advertising. A company knocking on doors after a hot dry summer is responding to a real increase in symptoms and to a real increase in sales opportunity at the same time.

Practical seasonal work: before the wet season, clear gutters and check that ground still slopes away. Before the dry season, in clay regions, be consistent with landscape watering rather than letting soil at the foundation go from saturated to bone dry. Geology.com's point about repetitive stress is the reason consistency matters more than any single condition.

How to choose

Track cracks across a full year

One measurement in August tells you nothing. Four measurements across a year tell you whether the movement is cycling or progressing.

Prepare drainage before the wet season

Gutters, downspout extensions, and grade. Do it before the rain, not during.

Aim for consistency, not dryness

The damage mechanism is the swing between wet and dry, not moisture itself.

Be extra skeptical of post-drought door-knocking

Symptoms genuinely spike after dry seasons, which is exactly when high-pressure sales activity also spikes.