Scope
Description
London Overground requires a contractor to upgrade the existing Transmission system installed on the Core Windrush Line.
It is proposed that the successful contractor will undertake the both the design and build elements of the scheme.
Further details will be provided within the MSQ documentation.
Contract dates (estimated)
- 1 May 2026 to 6 November 2027
- 1 year, 6 months, 6 days
Main procurement category
Works
CPV classifications
- 45234120 - Urban railway works
Contract locations
- UKI - London
Engagement
Engagement deadline
1 October 2025
Engagement process description
On the 30th June 2025, the Railway Industry Supplier Qualification Scheme (RISQS) was used to identify potential contractors to shortlist for participation in the formal procurement process expected to commence in December 2025.
In order to do that the following Railway Industry Commodity Classification List (RICCL) codes were selected were:
B.C.2.1.6: Lineside Telephones / Commission + Design + Install + Overhaul
B.C.2.2.1: Transmission Systems / Commission + Design + Install + Overhaul
B.C.2.2.6: Telecomm Cabling (Data Cabling) / Commission + Design + Install + Overhaul
B.C.2.2.7: Telecomm Cabling (Fibre) / Commission + Design + Install + Overhaul
B.C.2.2.8: UPS / Commission + Design + Install + Overhaul
Audit CDM Scope: CDM Principal Contractor AND CDM Principal Designer, Infrastructures: Network Rail, Regions Greater London
RISQS identified 13 contractors with the ability to undertake the works identified by London Overground. Market engagement will commence with these suppliers only.
Further information about RISQS can be found below
https://www.find-tender.service.gov.uk/Notice/007184-2025
A market sounding questionnaire will be issued for the 13 Contractors to complete, submit and express an interest in formally participating with the tender process later in 2025 or early 2026.
Submission
Publication date of tender notice (estimated)
1 December 2025
Procedure
Special regime
Utilities
Contracting authority
Transport for London
- Public Procurement Organisation Number: PHMT-6197-NWNZ
5 Endeavour Square
London
E20 1JN
United Kingdom
Email: StevenDavies@tfl.gov.uk
Region: UKI41 - Hackney and Newham
Organisation type: Public authority - central government