How we find the cause.
Shut the water off at the meter or the isolation valve if you can safely reach it. Stay clear of wet electrical equipment and switch off power to affected areas at the board if it is safe. Then ring a plumber and ask them directly whether they can attend now, or contact the relevant utility if the problem is on their side.
Tell whoever attends what is happening, whether the supply is isolated, and what the hazards and access are. Do not attempt a repair you are not confident in while you wait. Photographs taken safely are worth having later, for your own records and for any insurance claim.
What to send us
Have your address, access details and a short description ready before you ring. Know where your water meter is: finding it in the dark during a burst is a bad time to learn. Once the immediate emergency is dealt with, our enquiry form is a good way to organise the follow-up repair properly.
What actually moves the price
Confirm attendance charges, the initial assessment and what you are authorising directly with whoever attends, before they start. After-hours work is priced differently from planned work, and it is reasonable to ask for that up front even in a hurry.