National Grid has appointed 31 suppliers to a framework for civil engineering and building works at electricity substations across its National Grid Electricity Distribution (NGED) network.
The 31 contracts have a combined stated value of £600m, excluding VAT. The framework is due to run from 14 October 2026 to 13 October 2027, with an option to extend for a further 12 months until 13 October 2028.
Substation construction and maintenance
The framework covers work at 132kV, 66kV, 33kV and 11kV substations. The scope includes new substation construction, refurbishment and alterations to existing sites and buildings, foundations, fencing, drainage, roads, trenching, excavation and cable ducts.
It also includes building maintenance such as roof repairs, redecoration, joinery, guttering, glazing, trench-cover replacement and the installation or replacement of doors and gates.
According to the procurement notice, work will frequently take place in a “live” substation environment. Suppliers may also be required to carry out specialist work to protect substations from extreme weather, including flooding, high winds and high humidity.
31 suppliers appointed
The appointed suppliers are A I & Z, A Grant, A Thomas Plant Hire, Alpha Construction, Alun Griffiths (Contractors), Amalgamated Construction, Andrew Scott, Blyth Construction (SW), Bridge Civil Engineering, Cambrensis Civil Engineering, Chalfont Construction, Coffey Construction, Coombes Forestry, DAC Power, David Galvin Construction, Enable Infrastructure, Envolve Infrastructure, Force Contracting Services, Fortis Foundations Civil Engineering, Foxfords, M Group Transport (Rail and Aviation), Manning Construction, Palmer Construction, Pod-Trak, Raymond Brown Construction, Regen Construction, Spencer Rail Engineering, T & A Joinery, Trant Engineering, Tudorborne, Velta Construction and Whitehouse Construction.
Individual contract values range from £3.33m to £40m, excluding VAT. The £40m contracts were awarded to Amalgamated Construction, Coombes Forestry, M Group Transport (Rail and Aviation) and Pod-Trak. The notice states that framework lot values may be shared with other lots.
Ten geographical lots
The framework is divided into 10 geographical lots covering NGED network zones: Redruth and Bodmin; Plymouth, Torbay, Mid and East Devon and North Devon; Somerset, Mendip Western, Mendip Bath and Bristol; East Wales, West Wales, Swansea and Cardiff; Gloucester, Hereford and Ludlow and Worcester; Birmingham and Tipton; Telford and Stoke; Derby, Chesterfield and Mansfield and Nottingham; Coventry and Warwickshire, Northamptonshire and Milton Keynes, Leicester and Kettering; and South and North Lincolnshire.
The award decision date for all 31 contracts was 1 October 2026, with assessment summaries sent to tenderers.