Dripping tap: what to do

Observe before acting

• Check whether the water comes from the spout, handle, body or a connection below.
• Note whether it is the hot or cold side and whether the drip changes when the handle is moved.
• Do not overtighten the handle; this can damage components without stopping the leak.

Broad causes

Depending on the tap design, a worn washer, seal, ceramic cartridge, valve seat or loose connection may be involved. Limescale and corrosion can make repair less straightforward. The visible drip does not establish which component has failed.

Limit waste safely

Use an obvious, accessible isolation valve only if necessary and if it turns without force. A container can show how quickly water is being lost. Avoid dismantling the tap if you cannot reliably isolate the supply or identify the correct replacement parts.

Repair or replacement

Repair can suit a sound tap with available parts. Replacement may be more sensible where the body is damaged, badly corroded, difficult to service or no longer meets your needs. Tell a plumber the tap style, leak location, available isolation and any model marking.