If you're unhappy with our service
While we are committed to providing you with first-rate customer service, we appreciate that there may be times when we do not get it right first time. If you are unhappy about the service you have received from us, please call us, so that we can put it right as quickly as possible.
Call us
Bill account
If you are unhappy about the way in which we have handled your bill or account, please call us on 0845 641 0020 (Minicom or Typetalk: 0845 7200 899). Lines are open weekdays from 8am to 5pm.
Water supply or wastewater services
If you are unhappy about the way in which we have dealt with your water supply or wastewater services, please call us on 0845 9200 800 (Minicom or Typetalk: 0845 7200 898). Lines are open 24 hours a day.
If you are contacting us from outside the UK, please call +44 1793 366011.
To help us continually improve the quality of our service, we record all calls.
Write to us
If you are unable to call us, please write to:
Thames Water
PO BOX 436
Swindon
SN38 1TU
We will respond to you within ten working days.



