Appliance failures are quietly one of the most frequent sources of home water damage. A rubber washing-machine supply hose that cracks, a dishwasher that overflows, a refrigerator ice-maker line that splits — each can release water for as long as it goes unnoticed, which is often hours if it happens while you’re out or asleep. The water spreads under cabinets and into adjoining rooms before anyone sees it.

The usual suspects

• Washing-machine hoses. Rubber fill hoses fail with age and pressure; braided stainless hoses are a cheap upgrade.
• Dishwasher overflows & leaks. Door seals, supply connections, and drain issues flood the kitchen and into cabinets.
• Refrigerator ice-maker lines. Small plastic lines split and drip behind the fridge unseen.
• Toilet supply lines & overflows. A failed supply line or overflowing bowl can run continuously (see sewage backups if it’s contaminated).

Why under-cabinet water is the real issue

Surface water on tile looks easy to mop, but appliance overflows push water under cabinet toe-kicks, into the subfloor, and along wall bases where it lingers and feeds mold. Crews extract, then dry the hidden zones — pulling toe-kicks and drilling discreet vents to dry cabinet cavities when needed — and remove materials that can’t be saved.

Other Tucson water-damage causes