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

Capacity, recovery rate, available supplies and space for maintenance matter when replacing a cylinder. A similar-looking vessel may have different installation requirements. The scope should include relevant valves, discharge arrangements and commissioning records.

Before arranging the visit

Describe household hot-water use and provide measurements of the accessible cupboard.

Choosing the appropriate plumbing visit

We check the visible fault, isolation, pipe condition and access before agreeing the repair scope. Our hot water cylinders & immersion heaters page explains the related work and how an assessment is arranged.

Where the findings point to vented hot water cylinder replacement, read the vented hot water cylinder replacement 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 hot water cylinders & immersion heaters, the guide Hot-water cylinder leaks: where water is appearing explains what to record next.

For a related question about hot water cylinders & immersion heaters, the guide No hot water from an immersion system explains what to record next.