National Grid Names 31 Contractors for £600m Substation Civils Framework

National Grid has appointed 31 contractors to a substation civils framework with stated contract values totalling £600m.

The framework covers construction and refurbishment work across National Grid Electricity Distribution's network in the South West, Wales and the Midlands. It spans 10 geographic lots, each carrying a stated contract value of £40m.

Four contractors secured places on all 10 lots: AmcoGiffen, M Group Transport, Pod-Trak and Coombes Forestry. Trant Engineering follows with £36.7m in forecast value, Enable Infrastructure with £33.3m and Envolve Infrastructure with £31m.

Biggest multi-lot awards by forecast value

• AmcoGiffen – £40m
• Coombes Forestry – £40m
• M Group Transport – £40m
• Pod-Trak – £40m
• Trant Engineering – £36.7m
• Enable Infrastructure – £33.3m
• Envolve Infrastructure – £31m
• Fortis Foundations – £27.2m
• Manning Construction – £24.3m
• Alpha Construction – £24m
• Coffey Construction – £24m
• Palmer Construction – £24m
• Spencer Rail Engineering – £24m
• Force Contracting Services – £22.5m

Scope of work

The framework covers civil engineering and building work at new and existing substations operating at 132kV, 66kV, 33kV and 11kV. The work includes new substations and buildings, alterations to existing facilities, foundations, fencing, drainage, roads, excavation, cable ducts and general building maintenance.

Specialist work to protect sites against flooding, high winds and other extreme weather risks also falls within the scope. Much of the civils activity will be carried out inside live substations.

The 10 lots stretch from Cornwall and Devon through Wales and the West Midlands to Nottinghamshire, Leicestershire and Lincolnshire.

The framework starts on 14 October and will initially run for one year, with an option to extend for a further 12 months.

Regional winners

Redruth, Bodmin: AI & ZA Grant; AmcoGiffen; Blyth Construction (SW); Bridge Civil Engineering; Coombes Forestry; DAC Power; David Galvin Construction; Envolve Infrastructure; Force Contracting Services; Fortis Foundations Civil Engineering; Foxfords; M Group Transport; Tudorborne; Pod-Trak; Regen Construction.

Plymouth, Torbay, Mid & East Devon, North Devon: AI & ZA Grant; AmcoGiffen; Blyth Construction (SW); Bridge Civil Engineering; Coombes Forestry; DAC Power; Envolve Infrastructure; Force Contracting Services; Fortis Foundations Civil Engineering; Foxfords; M Group Transport; Tudorborne; Pod-Trak; Regen Construction; Trant Engineering.

Somerset, Mendip, Bath and Bristol: AI & ZA Grant; AmcoGiffen; Bridge Civil Engineering; Coombes Forestry; Enable Infrastructure; Envolve Infrastructure; Force Contracting Services; Foxfords; Knights Brown Construction; M Group Transport; Manning Construction; Tudorborne; Pod-Trak; Trant Engineering; Velta Construction.

East & West Wales, Swansea and Cardiff: AI & ZA Grant; Alun Griffiths; AmcoGiffen; A Thomas Plant Hire; Cambrensis Civil Engineering; Coombes Forestry; Andrew Scott; Enable Infrastructure; Envolve Infrastructure; Knights Brown Construction; M Group Transport; Manning Construction; Pod-Trak; Trant Engineering; Velta Construction.

Gloucester, Hereford & Ludlow, Worcester: AI & ZA Grant; Alpha Construction; AmcoGiffen; Coffey Construction; Coombes Forestry; Enable Infrastructure; Envolve Infrastructure; Knights Brown Construction; M Group Transport; Manning Construction; Palmer Construction; Pod-Trak; Spencer Rail Engineering; Trant Engineering; Velta Construction.

Birmingham, Tipton: Alpha Construction; AmcoGiffen; Coffey Construction; Coombes Forestry; Enable Infrastructure; Envolve Infrastructure; Force Contracting Services; Fortis Foundations Civil Engineering; M Group Transport; Manning Construction; Palmer Construction; Pod-Trak; Spencer Rail Engineering; Trant Engineering; Whitehouse Construction.

Telford, Stoke: Alpha Construction; AmcoGiffen; Coffey Construction; Coombes Forestry; Enable Infrastructure; Envolve Infrastructure; Fortis Foundations Civil Engineering; Knights Brown Construction; M Group Transport; Manning Construction; Palmer Construction; Pod-Trak; Spencer Rail Engineering; Trant Engineering; Whitehouse Construction.

Derby, Chesterfield & Mansfield, Nottingham: Alpha Construction; AmcoGiffen; Coffey Construction; Coombes Forestry; Enable Infrastructure; Force Contracting Services; Fortis Foundations Civil Engineering; M Group Transport; Tudorborne; Palmer Construction; Pod-Trak; Spencer Rail Engineering; T & A Joinery; Trant Engineering; Whitehouse Construction.

Coventry & Warwickshire, Northants & Milton Keynes, Leicester & Kettering: Alpha Construction; AmcoGiffen; Coffey Construction; Coombes Forestry; Enable Infrastructure; Envolve Infrastructure; Fortis Foundations Civil Engineering; M Group Transport; Manning Construction; Palmer Construction; Pod-Trak; Spencer Rail Engineering; T & A Joinery; Trant Engineering; Whitehouse Construction.

South Lincolnshire, North Lincolnshire: Alpha Construction; AmcoGiffen; Chalfont Construction; Coffey Construction; Coombes Forestry; Enable Infrastructure; Force Contracting Services; Fortis Foundations Civil Engineering; M Group Transport; Tudorborne; Palmer Construction; Pod-Trak; Spencer Rail Engineering; T & A Joinery; Trant Engineering.

With work beginning on 14 October and an extension option that could carry the framework into late 2026, the 31 appointed firms now hold a two-year pipeline of substation work across one of Britain's largest distribution networks.