Our major projects

We invest around £1billion each year on improving our water and wastewater network - replacing ancient and worn out infrastructure, and adapting to the needs of a growing population. This is more than any other UK water company.

We have a number of major projects already in the pipeline, and are preparing to embark on some of the largest engineering projects in Europe. This includes the revolutionary London Tideway Tunnels and extensions to the London Ring Main.

Read more about our major projects

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London Tideway Improvements
Some of our biggest engineering projects to date - the London Tideway Improvements will help provide the capital with a sewerage system fit for the 21st century and beyond.
Proposed reservoir
Predicted population growth, climate change and increased water consumption all mean that a major new water resource will be required for our region, by about 2026.
Ring Main extensions
The extensions to London's Ring Main will not only increase the size of the area it serves but will help us meet the capital's growing demand for water.
Sewer flooding alleviation
We recognise that sewer flooding is a major social issue and are committed to continuing to invest to reduce the risk of sewer flooding to our customers. We are investing £320million on sewer flooding alleviation schemes to reduce the risk of flooding at 10,000 properties.
Victorian mains replacement
So far we have replaced over 1,000 miles of old and leaky water mains in London. This is essential to reduce leakage and ensure there is enough water to meet the needs of the capital's growing population.