Costain Secures c.£45m Contract with Severn Trent

Costain Group PLC

18 March 2026

Costain Secures c.£45m Contract with Severn Trent

Costain Group PLC ("Costain") today announces that it has been selected by Severn Trent PLC ("Severn Trent") to deliver critical infrastructure upgrades at its Rugby Newbold Sewage Treatment Works. The programme of works is valued at approximately £45m and will run until 2028.  

As principal contractor and principal designer, Costain will be designing and building new facilities and upgrading systems to improve operational resilience and increase the site's feed and storm capacity.

This contract builds on a partnership with Severn Trent that began in 2010 with the award of an AMP5 framework contract, and which has since been extended through the AMP6, AMP7 and AMP8 regulatory cycles, taking the partnership to at least 2030.

Alex Vaughan, Chief Executive Officer of Costain, commented: "This new contract continues our long-term trusted partnership with Severn Trent built on delivering essential infrastructure upgrades that make the UK's water system more resilient. This award is testament to our excellent track record of identifying construction efficiencies and delivering predictable, best-in-class solutions that maximise value for Severn Trent and its customers."

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Costain improves people's lives by creating connected, sustainable infrastructure that enables people and the planet to thrive. Through the delivery of predictable, best-in-class solutions across the transport, water, energy and defence markets, we are creating a sustainable future and securing a more prosperous, resilient and decarbonised UK.