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A couple walk their dog next to a reservoir

Welcome to Thames Water

We take care of water for 16 million people, enabling our customers, communities, and environment to thrive.

Thames Water van driving past River Thames

Protecting the River Thames

The River Thames is our most important water source. It's our responsibility to protect it as the UK's largest water supplier.

We're investing £4.5 billion with the Thames Tideway Tunnel. The tunnel will help reduce combined sewer overflows and decrease sewage spills. It will also provide habitats for a range of aquatic wildlife.

View river project

Things we love

Caring for water

We're passionate about protecting our most precious resource.

Our people

Could you be our next Data Analyst, Mechanical Engineer or Marketing Manager?

Sharing our stories

From fatbergs to fountains, read the latest news and updates from our business.