First response
- If water is actively leaking and it is safe to do so, isolate your internal stop tap (usually under the kitchen sink or in a utility cupboard). Turn clockwise to close.
- If you cannot find or operate the stop tap safely, move valuables away from the leak and contain water with towels/buckets while you wait for help.
- Switch off electrics only if water is near sockets or the consumer unit and it is safe to do so. If unsure, wait for a professional.
- Avoid using DIY sealants on pressurised pipes — this can worsen the leak.
- Call an emergency plumber. Provide postcode, description of the leak, and access instructions.
If the leak is external or appears to be a mains issue, contact your water supplier.