Residents are urged to check their water supply shut off valves both inside and outside of their home after a residents house was recently flooded, as both valves had failed and the water could not be isolated.
Inside valves (stop cocks) are where the mains water supply enters the house, commonly under the sink.
Outside they should be on the pathway outside your property or nearby.
If the valve outside doesn't work it is the responsibility of Thames Water 0845 9200 800
If the valve inside doesn't work contact a plumber.