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Emergency plumber in London

A burst pipe can release hundreds of litres an hour. Turn off your stopcock first, then request urgent help — our team reviews every urgent request and matches it to an available verified plumber where we can.

If you smell gas, or a carbon monoxide alarm sounds: don't smoke, light a flame or touch light switches, open the doors and windows, turn the gas off at the meter if you can reach it safely and it isn't in a cellar or basement, get everyone out, and call the National Gas Emergency Service free on 0800 111 999 before anything else — before calling us.

If anything is smoking or alight: get everyone out and call 999 first.

Request urgent help

Sound familiar?

  • Water escaping and you can't stop it
  • Burst or split pipe
  • Major leak through a ceiling
  • No water supply to the whole property
  • Overflowing toilet that won't stop

What your Hero will do

  1. 1Isolate the leak and make the system safe
  2. 2Diagnose the cause — split pipe, failed joint, appliance fault
  3. 3Carry out an immediate repair or a temporary safe fix with a plan for the permanent one
  4. 4Document the damage for your records or insurance

When to call

Immediately, once the water is off at the stopcock. The faster the water is stopped, the smaller the repair bill — most of the damage in a burst-pipe incident happens in the first hour.

Common questions

Where is my stopcock?
Usually under the kitchen sink, in a downstairs bathroom, under the stairs, or near the front door at floor level. In flats it may be in a utility cupboard or communal riser. Find it today, not during the emergency — our free Emergency Card helps you record it.
What is classed as a plumbing emergency?
A plumbing emergency is water you can't stop, or no water at all: a burst or split pipe, a major leak coming through a ceiling, a toilet that won't stop overflowing, or no water supply to the whole property. If water is escaping, turn off your stopcock first, then request urgent help through London Heroes. Our team reviews every urgent request and matches it to an available verified Hero where we can.
Why are emergency plumbers so expensive?
Emergency plumbing costs more because emergency and out-of-hours visits are priced on different terms from planned work: a call-out charge is common for them, and out-of-hours labour usually costs more than the same job during the day. Parts come on top, and an emergency fault is often unknown until someone is on site, so it is harder to price in advance than a planned job. On London Heroes, Heroes set their own prices, including call-out charges and emergency premiums for urgent or out-of-hours work, and you see the full price before you pay. Request urgent help through London Heroes.

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