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    Costain’s £200M United Utilities extension: delivery and AMP8 notes for engineers

    July 16, 2026|

    Reviewed by Tom Sullivan

    Costain’s £200M United Utilities extension: delivery and AMP8 notes for engineers

    First reported on New Civil Engineer

    30 Second Briefing

    Costain has secured a three-year extension to its managed service provider contract with United Utilities, taking the framework’s total value to about £200M for water and wastewater infrastructure works. The deal covers programme management, design and delivery support across treatment works, pipelines and network resilience schemes in the North West, including AMP8 regulatory-period upgrades. Contractors and consultants can expect continued demand for civils, MEICA integration and off-site manufacture solutions as United Utilities pushes asset renewal and leakage reduction targets.

    Technical Brief

    • For other UK water companies, long-duration MSP frameworks are becoming a preferred mechanism to manage AMP-cycle volatility.

    Our Take

    Costain’s extension with United Utilities comes alongside a run of other multi-year infrastructure roles in our coverage, including frameworks at London Gatwick and Transport for London, signalling that it is rebuilding a strong recurring workload across regulated and transport clients.

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    Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.

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