Kier wins South West Water c.£140m NSA extension

RNS Reach: 12 June 2026

Kier Group plc

Kier secures South West Water with c.£140m Network Services Alliance extension

Kier Group plc ("Kier" or the "Group"), a leading infrastructure services, construction and property group, is set to continue delivering vital maintenance and improvements across South West Water's network over the next two years, following a c.£140m extension to its role on the Network Services Alliance (NSA).

The framework extension has an indicative value of c.£140m and runs until March 2028, with Kier being the sole contractor appointed.

The appointment marks the continuation of a long-standing relationship of more than two decades between Kier and South West Water and supports the delivery of front-line network activity.

As part of the extension, Kier will continue to deliver repair and maintenance, leakage activity, network reliability schemes, metering and developer services. The agreement also supports local supply chains and skills development across the region.

In the last year, our teams have delivered more than 25,000 repair and maintenance jobs, alongside over 32,000 metering activities, maintaining performance across a high-volume operational environment.

This NSA extension builds on Kier's continued role across AMP8, including appointments in addition to South West Water with Anglian Water, Severn Trent, Southern Water, Thames Water, United Utilities and Yorkshire Water.

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Further Information:

Kier Group plc +44 (0) 1767 355 096

Kier Press office

FTI Consulting +44 (0) 20 3727 1340

Richard Mountain

About Kier Group:

Kier is a leading UK infrastructure services, construction and property group. Our purpose is to sustainably deliver infrastructure which is vital to the UK, and we are committed to leaving lasting legacies through our work.

We provide specialist design and build capabilities and the knowledge, skills and intellectual capital of our people to ensure we are able to project manage and integrate all aspects of a project. 

You can find out more about Kier on our website.