A wet sink cabinet does not always mean the same repair. The timing of the drip can help narrow down where to look.
Notice when water appears
If it drips while the tap is off, an accessible supply connection or faucet component may be involved. If it appears only when the sink drains, look at the waste piping and trap. Water that reaches the cabinet after the counter is wiped or splashed may come from the sink edge instead.
Dry the cabinet floor and place a clean towel or paper below the visible connections. Run the tap briefly and watch from a safe position. Do not force old valves or take apart a connection over an electrical outlet.
Share the location
Take a wide photo of the cabinet and a close photo of the drip. If water is pooling or reaching nearby electrical equipment, stop using the fixture and seek help promptly. Our sink service can assess the cause.
Do not overlook the countertop
Water can travel along the underside of a sink or countertop before it drops into the cabinet. If the cabinet becomes wet only after splashing near the rim, describe that separately from a drip at a supply line. If the leak starts when the dishwasher drains, mention it too; its drain connection may share the space beneath the sink.
Avoid tightening a wet fitting by force, especially on older piping. If water is escaping continuously, use a local shutoff only if it turns easily and you can reach it safely. Our kitchen check guide shows how to note which activity triggers the leak; that timing can shorten the diagnosis.