Projects
We invest around £2 billion each year on improving our water and wastewater network. A number of large-scale projects are in progress to help us transform the way we deliver water.
As well as this, we're carrying out improvements and repairs across the network. View work in your area.
What we're working on
Find out more about our biggest investment projects.
Thames Tideway Tunnel
Learn all about the tunnel that will help create a healthy river environment for our capital city.
Relocating Guildford STW
Find out the benefits of moving the sewage treatment works (STW) in Guildford.
London flooding response
After the London flooding in 2021, we carried out two reviews to prevent it happening again.
Misbourne Valley flooding
We're taking action to prevent sewer flooding that's affecting residents, businesses and the environment.
Bulk water meter programme
We're installing water meters across the region. These will help to make your water bills more accurate.
Reducing storm discharges
We're making improvements to significantly reduce the need for sewage discharges into rivers.