Stop using the shower or bath if water is reaching ceilings, walls or electrical fittings
Isolate local water supplies where possible. Electric showers must be isolated electrically before any internal work, and temperature faults that create scalding risk should be treated as urgent.
MOST LIKELY CAUSES
Start with these
Symptom variations Match the exact pressure, temperature or leak pattern. ⌄
- Leak at handset end
- Leak at wall outlet
- Water sprays through hose body
- Nut will not tighten squarely
- Leak appears only under pressure
Quick checks Simple checks before dismantling shower or bath components. ⌄
- Identify whether the problem affects pressure, temperature, drainage or leakage.
- Check nearby hot and cold outlets for similar symptoms.
- Clean accessible shower heads, filters and waste covers.
- Inspect hoses, seals, trays and accessible joints.
- Stop testing immediately if water appears below or near electrics.
Step 1 — Turn off the shower and depressurise Use controlled tests and stop if water reaches ceilings or electrics. ⌄
Process
Stop water flow before removing the hose.
Step 2 — Check both hose washers Use controlled tests and stop if water reaches ceilings or electrics. ⌄
Process
Remove the hose and inspect the flat seals.
Step 3 — Inspect hose body and threads Use controlled tests and stop if water reaches ceilings or electrics. ⌄
Process
Look for splits, bulges, crushed areas and cross-threading.
Common causes explained Why shower and bath faults develop. ⌄
A shower hose can leak from missing or flattened washers, loose swivel nuts, a split inner tube, damaged threads or a cracked handset connection.
Shower and bath faults often depend on when water is flowing, draining or hitting a sealed surface. Controlled separate tests help distinguish supply, mixer, waste and enclosure faults.
Advanced diagnostics Plumber or appliance-engineer checks. ⌄
- Replace hose and washers.
- Inspect outlet elbow and handset threads.
- Replace cracked handset connection.
- Check excessive pressure or hose twisting.
- Leak-test through full movement.
Parts that may need replacing Common components linked to this fault. ⌄
- Shower hose
- Flat hose washers
- Handset
- Outlet elbow
- Threaded adaptor
When to call a plumber or engineer Conditions that should end basic troubleshooting. ⌄
- Water is leaking through a ceiling or near electrical equipment.
- The shower temperature is dangerously hot or unstable.
- An electric shower has an internal heating or power fault.
- The tray, bath or concealed pipework must be removed for access.
- A thermostatic cartridge cannot be calibrated safely.
- The fault returns after basic cleaning or seal replacement.
Frequently asked questions Common questions about shower and bath faults. ⌄
Why does a shower drip after it is turned off?
Large heads and hoses can hold water temporarily. Continuous fresh dripping points to a leaking control valve or cartridge.
Can failed sealant cause a ceiling leak?
Yes, but waste joints, pipe connections and tray movement must also be ruled out.
Why does shower temperature change when another tap is used?
The hot and cold pressures may be unbalanced or the thermostatic cartridge may not compensate correctly.