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Improvements to our network

We invest around £1bn each year on improving our water and wastewater network. As well as this, we also have a number of large scale improvement projects. 

Illustration of Thames Water engineers carrying a length of pipe

Thames Tideway Tunnel

Learn all about the tunnel that will help create a healthy river environment for our capital city.

Green recovery

Learn more about how we’re helping our region recover from the Covid-19 pandemic by investing in our services and creating new jobs.

Relocating Guildford STW

Learn about why we're moving the sewage treatment works (STW) in Guildford and the benefits of the project.

London flooding response

Learn about the actions we’re taking in response to the extreme rain in London during July 2021.