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Cornwall Water Mains Replacement Project

Improving the reliability and resilience of local water supplies

Our investment

We're investing in essential upgrades to the water network across Cornwall to help strengthen and futureproof local water supplies.

As communities grow and demand on the network changes, it's important that our infrastructure continues to provide customers with a reliable supply of drinking water. Through a series of resilience schemes across Cornwall, we're installing new sections of water main to improve network flexibility, increase capacity and strengthen the resilience of local water supplies.

These improvements will help reduce the risk of supply interruptions during periods of high demand and provide greater flexibility when responding to network issues or emergencies.

View of the red cliffs looking down to the sea with Tintagel castle in the background

Tintagel Resilience Scheme

We're investing in essential upgrades to strengthen the local water network in Tintagel and the surrounding area.

Tintagel investment
Scenic view overlooking Launceston town and hills

Launceston Resilience Scheme

We’re investing in essential upgrades to make sure the local supply is more reliable and resilient for the future

Launceston investment

What the work involves

We'll be installing new water mains at locations across Cornwall to replace ageing infrastructure and improve the performance of the local network.

To minimise disruption wherever possible, we'll use a combination of construction techniques, including trenchless methods such as directional drilling and pipe bursting, alongside traditional excavation where required. All affected areas will be reinstated following completion of the works.

Water main being repaired
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What the work involves

We'll be installing new water mains across several locations throughout East Devon to replace ageing infrastructure and improve the performance of the local network.

To minimise disruption wherever possible, we'll use a combination of construction techniques, including trenchless methods such as directional drilling and pipe bursting, alongside traditional excavation where required. All affected areas will be reinstated following completion of the works.

Women enjoying a glass of water
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Benefits of the project

This investment will help reduce the number of leaks and bursts on the network, improving reliability for customers and reducing the need for reactive repairs.

By upgrading ageing infrastructure, we're creating a more resilient water network that can continue to support local communities, while also reducing water lost through leakage and helping to protect the environment.

South West Water workman on laptop
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Project timeline

This project is expected to start in October 2026 and finish in the summer 2027.

More accurate dates for each town will be shared via project pages once we have further details.

Hands using a mobile phone
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Contact us

If you have any questions about the scheme, please contact our Customer Liaison Officer, Kelly-Jade Browning on 07851 256622, or our Customer Services Helpline on 0344 346 2020 between 8am and 6pm, Monday to Friday. 

Please only call outside of these times in an emergency.

Completed projects