Source: https://tendernation.io/opportunities/01a13bcb-2186-7217-a233-ce1921397d18/isolation-associated-services awarded GB restricted procedure # Isolation & Associated Services [Network Rail Infrastructure Ltd](https://tendernation.io/buyers/network-rail-infrastructure-ltd) Estimated value £376,000,000 Published 16 Jul 2026 Deadline Closed 27 Nov 2024 ## Who can bid - Split into 6 lots You can usually bid for just the lots you can deliver. - Sets up a framework Winning a place does not guarantee work: contracts are awarded later as call-offs, and the list usually stays closed for years. ## About this tender The supply of Isolation & Associated Services to Lot 1 Eastern Region, Lot 2 North West and Central Region and Lot 3 Wales and Western Region. The framework will be available for any Network Rail (NR) national function to use. This sourcing activity will provide Network Rail with a comprehensive call-off isolation and construction services for 25kV AC, 750V DC, and 1500V DC Overhead Line (OLE) and 3rd and 4th rail DC conductor rail equipment (CRE) systems within the Service Areas covered by the regions listed above. ## CPV classification Mechanical and electrical engineering services Repair and maintenance services of electrical distribution equipment Operation of electrical installations Electrical services Source Find a Tender (UK) · Notice ocds-h6vhtk-03df0e-2026-07-16T18:57:15+01:00 [View official notice](https://www.find-tender.service.gov.uk/Notice/ocds-h6vhtk-03df0e-2026-07-16T18:57:15+01:00) Never miss a tender like this again Get AI summaries, deadline alerts and a bid pipeline for tenders matched to your business. Free to start. [Track tenders free](https://tendernation.io/register) [Buyer profile Network Rail Infrastructure Ltd: past awards and live tenders](https://tendernation.io/buyers/network-rail-infrastructure-ltd) [Sector More Architecture, engineering & surveying tenders](https://tendernation.io/sectors/architecture-engineering-surveying) ## More tenders like this [Vacuum Pump Tritium Testing · UK Atomic Energy Authority · 29 days left · 16 Nov 2026](https://tendernation.io/opportunities/01a1464c-dd0c-72ed-b7bd-bac1e52155ab/vacuum-pump-tritium-testing) [Mechanical and Electrical Consultant Tender · University Hospitals of North Midlands NHS Trust · 36 days left · 23 Nov 2026](https://tendernation.io/opportunities/01a145df-0fba-7085-98fc-1c9389531130/mechanical-and-electrical-consultant-tender) [Asbestos Surveys · Northamptonshire Partnership Homes · 26 days left · 13 Nov 2026](https://tendernation.io/opportunities/01a14571-3963-732e-a081-bef649a3206b/asbestos-surveys) [Design Lead for Christchurch Learning Centre School Satellite · Bournemouth, Christchurch and Poole Council · 30 days left · 17 Nov 2026](https://tendernation.io/opportunities/01a14503-59e7-72ad-900a-82eaae1a3048/design-lead-for-christchurch-learning-centre-school-satellite) [Penistone Station - Independent Assessor · Barnsley Metropolitan Borough Council · 25 days left · 12 Nov 2026](https://tendernation.io/opportunities/01a14495-7973-71c1-9c37-1ba8178069cf/penistone-station-independent-assessor) [CA18575 - RFQ 2026/42 - Conservation Engineer for St Paul's Church The Crag Cemetery Rostrevor · Newry, Mourne and Down District Council (NMD) · 26 days left · 13 Nov 2026](https://tendernation.io/opportunities/01a144b0-e0b5-70b1-a4eb-e5b6dc8d3bbe/ca18575-rfq-202642-conservation-engineer-for-st-pauls-church-the-crag-ceme)