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Thames Water is the UK’s biggest water and wastewater services provider. Our key workers provide essential services around the clock to 15 million customers across London, the Thames Valley and surrounding areas.

For an average of just over £1 a day for our households, we provide 2.6 billion litres of drinking water and safely remove 4.7 billion litres of wastewater every day.

We invested more than £1 billion again in 2020/21, leading to a total of £20 billion in the past 20 years, and we will continue to spend wisely on improving resilience, service and efficiency, as well as provide more support for customers in vulnerable circumstances.

We also have additional responsibilities to society and the natural environment. What we do and how we do it delivers significant public value, which is why we have ambitious plans to self-generate more of our own power, reduce our carbon emissions and increase biodiversity across our sites.