Clues to look for
- Swollen cabinet bases.
- Discolored backing or toe-kick material.
- Musty odor when a cabinet is opened.
- Visible growth near plumbing penetrations.
- Water staining on the wall beside or behind cabinetry.
Do not stop at the visible surface
The important question is whether moisture and mold are limited to an exposed cabinet surface or extend into adjacent drywall, flooring, or wall cavities.