Each year we ask customers for their views about the services they receive from their local water company and value for money of those services.

What customers say about Thames Water:

The full report for this company:

Written Complaints – Thames Water’s yearly trend

We have looked at the information companies have given us on the written complaints they received since 2005. Some of the information for Thames Water is shown below. To read the full report please click here.

Thames Water’s Complaints per 10,000 properties (connections)


 Thames Water’s Supply Interruptions

Thames Water’s Total Daily Leakage

Thames Water – Number of Properties Flooded Internally


Thames Water – Number of Areas Flooded Externally

To get a wider view of your company’’s performance over the past year,  you can also check your company’’s own website where the information they are required to provide is published. This will include reliability and availability measures, information about environmental compliance and some financial indicators.