If water is uncontrolled or approaching electrical equipment, prioritise safety and call a plumber. The guidance below is general and does not replace an inspection.

Understanding the issue

An overflow has limited capacity and can be obstructed or poorly connected. It should not be relied on to contain an unattended running tap. Leaks from the overflow route may appear only when the basin fills high.

Before arranging the visit

Describe the water level when leakage begins and whether the normal waste drains freely.

Choosing the appropriate plumbing visit

We check the visible fault, isolation, pipe condition and access before agreeing the repair scope. Our sinks & basins page explains the related work and how an assessment is arranged.

Where the findings point to bathroom basin installation, read the bathroom basin installation service details before discussing the repair scope. The actual fitting and access determine the work needed.

Information worth keeping

Record when the issue occurs, the affected room and any previous repair. For a property in our home area, plumbing in West Bridgford explains the local enquiry route; check the coverage directory for another postcode.

Connected questions

For a related question about sinks & basins, the guide Why a basin waste leaks after use explains what to record next.

For a related question about sinks & basins, the guide Replacing a kitchen sink: plumbing measurements explains what to record next.