Why moisture gets attention
Expansive clay can change volume as moisture changes. Professionals may consider drainage, vegetation, plumbing leaks, seasonal variation, fill, compaction, and construction conditions.
Drainage around the home
Water that collects near a foundation can change local moisture conditions. Surface drainage generally should move water away from the structure.
Dry periods and vegetation
Extended dry conditions and nearby vegetation can also influence moisture near a foundation. Significance varies by soil, landscaping, irrigation, and foundation design.
What to do
Watch for changing cracks, floor slopes, sticking openings, or separation, and pair those observations with site conditions when discussing an evaluation.