Contracts
Integrated Security Solutions (ISS) Works at Walham and Pentir
National Grid is installing integrated security solutions at two critical electricity transmission sites: Walham and Pentir. The work covers CCTV systems, perimeter fencing, gates, and substation construction.
- ClosesNot stated
- Published9 October 2026
- Value£21m
- Per lot£11m across 2 lots
- BuyerNATIONAL GRID ELECTRICITY TRANSMISSION PLC
- WhereWalham and Pentir
- CategoryConstruction & building works, Building materials & structures, Business & professional services, IT, software & telecoms, Security & emergency services, Transport & vehicles
- RegionSouth West, Wales
You'll want to look if you have experience delivering integrated security systems for critical infrastructure and can handle substation construction, fencing, gates and surveillance equipment.
Might not suit a small firm
- the contract itself is a large one
Possible incumbent
BAM Nuttall Limited has won recent substation construction and electrical extension work for National Grid (2026). Inferred from prior awards to this buyer, not confirmed.