San Antonio – Austin corridor
Is your ZIP code built on soil that moves?
Foundation damage in Central Texas is mostly soil. Expansive clay swells when wet and shrinks in drought — and the more it moves, the more it pushes on your slab. This map scores every ZIP in our service area from real USDA soil shrink–swell data. Hover or tap your area to see its risk, the main driver, and what to read about it.
High risk on the map isn’t a diagnosis — it’s a reason to check.
Soil sets the odds; drainage, plumbing, trees and build quality decide the rest. A free Motmot inspection tells you exactly where your home stands.