In an emergency
If water is entering your property or there is a risk to life, call the
emergency services on 999.
If you have been flooded and need to speak to someone for more advice please contact the Emergency Planning Team:
- During work hours: 020 8274 4901
- Out of working hours: 020 8274 5940
Report overflowing drains
This service will be unavailable on Sunday 26 May from 8pm until midnight, due to planned maintenance work.
Flooding caused by overflowing drains on Red Routes (A24, A298, A217) should be reported to Transport for London at
Flooding from rivers
The Environment Agency is responsible for managing flooding from larger rivers, called 'main rivers'. Within Merton these are:
- River Wandle
- Beverley Brook
- Pyl Brook (inc. East Branch)
- River Graveney
- Bunce's Ditch
- The Pickle
- Wandle Park Ditch
- Figges Marsh Ditch.
Flooding from Main Rivers should be reported to the Environment Agency's incident hotline on 0800 80 70 60 (24-hour).
To listen to recorded flood warning information for your area or to speak to someone for advice, call 0845 988 1188 (24-hour).
Smaller watercourses, not classified as 'main rivers' fall under our responsibility of Merton Council. Please contact us at
Flooding from a public sewer
Flooding from a public sewer should be reported to Thames Water on 0800 714 614 (24-hour).
Thames Water website
Flooding from a burst water main or water service pipe
There are two water companies responsible for supplying water to Merton. In the event that a water main bursts or there is flooding or a leak from a water service pipe the relevant company should be contacted on: