Thames Water Contact Number: 0800 980 8800

Contact Thames Water customer services for free on their freephone number 0800 980 8800 for general enquiries, to report a leak in your pipes, for blocked drains and to complain about an excessive water bill.

Thames Water is the company responsible for supplying water to a large area of Greater London as well as surrounding counties such as Surrey. Similarly they also handle drainage in their network area thus helping to combat flooding. Customers can call their freephone contact number 0800 980 8800 to report an incorrect water bill so that you can claim a refund against the automatic direct debit payment. Similarly if you suspect there is a fault with your meter you should call this helpline to notify Thames Water engineers who will then make an appointment to repair the problem. Furthermore you can phone this number to manage your account, for example if you are moving home you can either update your address or close your account if you will be residing in a different water supply area. Finally please call this number to make a formal complaint against Thames Water if you believe that you have repeatedly been overcharged for your water usage or a member of their customer care staff was rude to you.

Lines are open 8am-8pm Monday-Friday and 8am-6pm Saturday so Thames Water are unable to handle your general enquiries on Sundays, bank holidays are also likely to be affected. Calls are free of charge from all UK mobile and landline handsets regardless of whether you have free inclusive minutes on your tariff.


Report a leak to Thames Water – 0800 714 614

Customers can report leaks to Thames Water by calling their freephone emergency number 0800 714 614 to notify them of a burst water main, discoloured drinking water or lack of water to your property. Similarly you should call this helpline to report a blocked drain which is leading to localised flooding on your property or if you suspect that a nearby drain has been vandalised. Moreover if you are away from your property but suspect there may be water flowing you can call this helpline so that an engineer can access your shutoff valve.


Thames Water contact numbers – in summary

Department Contact number
Thames Water customer services 0800 980 8800
Textphone & minicom helpline 0800 980 8800
International Thames Water enquiries +44 1793 486 555
Report a water leak to Thames Water 0800 714 614
Report water leaks – textphone helpline 0800 316 9898
Drainage enquiries 0800 316 9800
Complain to Thames Water 0800 0093 988


Thames Water postal address

Customers who would prefer to write to Thames Water can do so by sending letters to their UK postal address which is provided below, however as this a slow way of contacting them please do not use this service in emergencies.

Customer Services,
Thames Water,
PO Box 286,
SN38 2RA,
United Kingdom.