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    National Grid supplier marketplace: delivery and CDM notes for contractors

    November 6, 2026|

    Reviewed by Joe Ashwell

    National Grid supplier marketplace: delivery and CDM notes for contractors

    First reported on New Civil Engineer

    30 Second Briefing

    National Grid is creating a qualified supplier marketplace to deliver property refurbishment, construction and maintenance across its operational, corporate and specialist estate, covering substations, control centres and office facilities. The framework is expected to pre-approve contractors for multi-year programmes of building upgrades, M&E works and fabric maintenance, streamlining procurement for repeat packages such as switchroom refits and structural repairs. Civil and building contractors will need to demonstrate capability in live high-voltage environments, stringent CDM compliance and coordination with grid outage planning.

    Technical Brief

    • Delivery will require strict CDM-compliant sequencing, including phased possession planning and detailed method statements.

    Our Take

    National Grid’s supplier-market planning sits alongside major UK transmission works in our database, including the 2GW Sea Link subsea cable and the life-extension of the 2GW IFA interconnector, signalling a sustained pipeline of complex, multi‑year packages that framework contractors will be targeting.

    The recent Teesworks land sale for what is billed as the UK’s largest electrical substation, with Balfour Beatty as delivery partner, suggests that National Grid Electricity Transmission is likely to favour suppliers with proven capability on very large, brownfield grid nodes when shaping its construction and maintenance panels.

    With 936 Infrastructure stories and 2367 tag‑matched pieces in our coverage, National Grid appears among the more frequently recurring UK infrastructure clients, which typically gives tier‑one contractors strong incentives to invest in long‑term capability and digital delivery tools tailored to its procurement model.

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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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