Leaking shower: what to check before you call

Describe the leak before naming the repair

When arranging bathroom plumbing help, describe the first place you notice water, not just the place it eventually collects. A photograph of the shower, adjacent floor and nearby wall gives better context than a close-up of a wet tile. Say whether the shower was running, had just been used or had been left untouched when you discovered the problem.

Distinguish a showerhead that continues dripping with the control off from water appearing outside the enclosure during use. Also distinguish both from dampness discovered in the room next door. These are descriptions for the plumber to investigate, not diagnoses. Include whether the symptom began suddenly, followed recent work or has been recurring after someone previously resealed the shower.

Keep observations specific. Instead of saying the whole bathroom leaks, note that water first appears beside the hinge, below the mixer or along the outside edge of the tray. If you have already wiped the area, write down what was wet before cleaning. A short account of the sequence is easier to use than a collection of photographs with no explanation.

Avoid dismantling the mixer or disconnecting pipework to improve the description. The Plumbers, Gasfitters and Drainlayers Board distinguishes permitted tap repairs from work involving supply pipes, wastes and other plumbing fixtures. Leave those connections for an appropriately licensed person. Before booking restricted plumbing work, check the worker’s current practising licence rather than relying only on a business name or an old invoice.

Make a useful observation record without staging a flood

Begin with what you can see in the shower’s current condition. Photograph the control, showerhead, hose, door edges, tray and visible joints, then the damp area outside. Include a wider photograph showing their relationship. If a label or installation record identifies the shower enclosure or mixer, add it to the enquiry so the contractor can find the appropriate instructions.

Look for visible separation in sealant or a displaced door seal, and record it rather than choosing a repair immediately. A visible defect is useful evidence, but the inspection still needs to explain the route of the escaping water. Note previous repairs, including where new sealant was added and whether that changed the symptom. Those details can prevent the visit from simply repeating an unsuccessful treatment.

The water-leak checking guide helps organise observations when you are unsure whether the shower is the source. Keep that wider question open if dampness appears while nobody is using the bathroom. Tell the contractor about nearby appliances, recent plumbing work and other wet areas. The aim is to give them a complete starting point, rather than steer the investigation toward whichever fitting looks oldest.

Use the following record to prepare for the call. It is a communication checklist rather than a test procedure: there is no need to keep running the shower to reproduce water escaping into the room. If you already have photographs from different occasions, label them with the circumstances. Explain which observations are repeatable and which you saw only once.

1. Note the first wet location and whether the shower was on or off.
2. Take a close photograph and a wider view of the surrounding area.
3. List previous repairs and the enclosure or mixer model if known.
4. Send the observations and ask what investigation the visit will include.

Keep enclosure seals and waterproofing in separate conversations

A shower can involve both visible enclosure joints and a concealed waterproofing system. The internal wet-area membrane code of practice hosted by MBIE distinguishes waterproof membranes from surface finishes and addresses plumbing penetrations and detailing. For a tiled shower, ask whether the proposed investigation concerns an enclosure joint, a plumbing connection or the waterproofing assembly. Those are different scopes even when the visible symptom looks similar.

Selleys publishes a repair method for a leaking shower joint that starts by removing old sealant and cleaning and drying the joint before applying the selected product. That preparation matters when resealing is the appropriate repair. Ask which joint needs treatment, which product is specified and what its current instructions require. A bead over an unidentified wet edge is not a diagnosis of the water path.

If the shower has already been resealed and the leak returned, ask the next contractor to review the earlier repair rather than automatically add more sealant. Provide any invoice or product information you have. Ask what evidence would support opening up a surface and what an inspection would seek to confirm. Clarify who would restore tiles, lining or finishes afterwards if opening is agreed.

For problems discovered around a bathroom renovation, gather the shower installation instructions, waterproofing documentation and photographs taken during construction. These records can help the relevant trades understand the assembly. Ask who will coordinate the plumbing and waterproofing questions so responsibility for investigation is clear. Keep the repair proposal tied to the observed fault and the relevant system instructions, rather than treating every shower as the same construction.

Book an investigation with clear approval points

Explain the effect on the household when booking: whether the shower is your only bathing facility, where the water is appearing and whether another room is affected. Ask what the initial attendance covers and what information would help the contractor prepare. A parts repair, enclosure adjustment and concealed investigation need different preparation, so establish whether the visit is for diagnosis, repair or both.

The plumbing quote guide is useful when investigation and final repair cannot be priced together at the outset. Agree the initial scope and the point at which further approval is needed. For example, ask to be contacted before any surface is opened. Confirm whether the proposal includes making good and whether another trade will be needed to finish the area after the plumbing work.

At the end of the visit, request an explanation of what was found, what was repaired and what still needs action. If sealant was used, follow the selected product’s instructions for returning the shower to use rather than a generic waiting period. Ask how the completed work was checked and keep the findings with the photographs that prompted the call.

For bathroom plumbing support, send the timing notes and wide-angle photographs together, and ask for a repair recommendation that names the cause. Keep any agreed follow-up visible, especially where a separate enclosure or waterproofing specialist is involved. The most useful outcome is not simply a dry floor at the end of the visit, but a clear account of the fault, the work done and the remaining responsibilities.