Open tenders / Building maintenance & repairs
Open tender · Notice 095732-2026
Integrated Security Solutions (ISS) Works at Walham and Pentir
- Value
- £21m
- Closes
- Not stated
- Where
- South West, Wales
- Lots
- 2
- Suitable for SMEs
- Not stated
- Contract
- 17 May 2027 – 14 Jan 2028
In plain English
National Grid Electricity Transmission wants a fully integrated security solution — including fencing, gates, CCTV, fire and burglar alarms, and telecoms installation — at its Walham and Pentir substations. The work is split into two lots (Lot 1: Walham, Lot 2: Pentir), running from 17 May 2027 to 14 January 2028, with a combined estimated value of £21,000,000.
Good fit for: Specialist security and civil engineering contractors experienced with critical national infrastructure and integrated security systems.
- No supplier can win both lots
no supplier will be awarded more than one Lot
- Must be experienced and suitably qualified
experienced and suitably qualified suppliers capable of delivering a fully integrated security solution
Written with AI from the official notice. Check the notice before relying on it.
What the buyer says
National Grid Electricity Transmission Plc is seeking experienced and suitably qualified suppliers capable of delivering a fully integrated security solution for critical national infrastructure sites at Walham and Pentir. The requirement is divided into two separate Lots: Lot 1 (Walham) and Lot 2 (Pentir). Suppliers may submit tenders for one or both Lots; however, no supplier will be awarded more than one Lot. Further details in relation to the scope are set out in the Instructions to Tenderers.
Procedure: Competitive flexible procedure (Flexible: the buyer sets the stages, often a shortlist first, then bids). Published 9 Oct 2026.
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