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 with the service you have received from us, please call us, so that we can put it right as quickly as possible.

Call us

Bill and account queries

If you are unhappy about the way we have handled your bill or account, please call us on 0845 641 0020 (Textphone: 0845 7200 899).

Our lines are open from 8am to 5pm, Monday to Friday, and closed at weekends and on bank holidays.

Water supply or wastewater services queries

If you are unhappy with your water supply or wastewater services, please call us on 0845 9200 800 (Textphone: 0845 7200 898).

Our lines are open 24 hours a day, seven days a week.

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.