--- title: "Overhaul of London Underground Spoil and Ballast (S&B) Wagons" ocid: "ocds-h6vhtk-068b28" canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-068b28" markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-068b28.md" json_url: "https://d3tenders.com/contract/ocds-h6vhtk-068b28.json" source: "Find A Tender Service" current_stage: "Planning" buyer: "TRANSPORT FOR LONDON" published: "2026-05-11" --- # Overhaul of London Underground Spoil and Ballast (S&B) Wagons Buyer: TRANSPORT FOR LONDON Current stage: Planning OCID: ocds-h6vhtk-068b28 [View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-h6vhtk-068b28) [Download OCDS JSON](https://d3tenders.com/contract/ocds-h6vhtk-068b28.json) ## Summary Transport for London is in the planning stage for a procurement process titled "Overhaul of London Underground Spoil and Ballast (S&B) Wagons," aiming to find a supplier to undertake a comprehensive overhaul of these wagons. This falls under the services category, specifically targeting railway and tramway locomotives and rolling stock. Located in London, this procurement is crucial for maintaining the efficiency of the London Underground's maintenance and track renewal regime. Key dates for interested suppliers include a deadline to register their interest by 12 noon on 1 June 2026, with further market engagement activities to follow. The initial contract term is set for three years starting on 20 May 2027, with a potential one-year extension, subject to performance criteria. This procurement represents a significant opportunity for businesses involved in railway maintenance and repair services to showcase their expertise and secure a valuable contract with a major public authority. Companies with capabilities in overhauling railway vehicles, especially those experienced with specialist rail vehicles, will find this project well-suited to their services. Additionally, the contract encourages participation from SMEs, indicating an inclusive competitive environment. Engaging in this tender could provide long-term growth opportunities by aligning with Transport for London's technical requirements and potentially setting a precedent for future collaborations in the public transportation sector. ## Notice Transport for London (TfL), on behalf of London Underground, is seeking a supplier to undertake the overhaul of the Spoil and Ballast (S&B) wagon fleet, which is critical to delivering the London Underground maintenance and track renewal regime. S&B wagons support track renewal programmes across the London Underground network by enabling the efficient delivery of materials and the removal of waste ballast during possessions, within both tunnelled and surface sections, helping to ensure the continued safety and reliability of the railway. The scope of works comprises a full and comprehensive overhaul of all S&B wagons, including but not limited to brake equipment, drawgear, bogies, bodywork, fittings, gauging, and brake performance testing, together with any repair works identified through condition assessments carried out during the overhaul process. All works must be delivered in accordance with TfL's mandatory technical requirements and applicable London Underground standards, using approved methods and suitably competent personnel experienced in the maintenance of specialist rail vehicles. The fleet consists of 52 wagons, originally procured in 1996. While the S&B wagons have previously undergone a successful life extension programme, a full overhaul is now required to mitigate reliance on an interim Case for Continued Safe Operation (CCSO) and to support their continued operation. The S&B wagons overhaul works include, but are not limited to: * Brake equipment overhaul (distributors, brake cylinders, handbrake, etc.) * Drawgear overhaul (drawgear, buffers & couplers) * Bogie overhaul (bogie frames, suspension, brake rigging, etc.) * Body (corrosion repair, box protection/ renewal, damage repair, paint, etc.) * Fittings (cover plates etc.) * Gauging & brake performance checks. * Repair works arising from condition assessment during overhaul. The objective of the overhaul programme is to return all Spoil and Ballast (S&B) wagons to a condition that reliable and safe operation for a minimum period of eight years following completion of the works. The contract will be let for an initial term of three years, with an option for TfL to extend for a further one year period, subject to ongoing operational and performance requirements. ### Planning Information "Interested suppliers are invited to register their interest by 12 noon on Monday 01 June 2026 responding to this notice. A market sounding questionnaire will then be issued. Transport for London may also hold optional follow-up clarification meetings. Participation will not confer any advantage or disadvantage in any future procurement." ## Key Details | Field | Value | | --- | --- | | Publication source | Find A Tender Service | | Latest notice | https://www.find-tender.service.gov.uk/Notice/043087-2026 | | Notice type | UK2 - Preliminary Market Engagement Notice | | Procurement type | Standard | | Procurement category | Services | | Procurement method | Not Specified | | Procurement method details | Competitive flexible procedure | | Tender suitability | SME | | Awardee scale | Not specified | | All stages | Planning | ## Dates | Field | Value | | --- | --- | | Publication date | 11 May 2026 | | Submission deadline | Not specified | | Future notice date | 19 Nov 2026 | | Award date | Not specified | | Contract period | 19 May 2027 - 19 May 2030 | | Recurrence | Not specified | ## Values | Field | Value | | --- | --- | | Tender value | £2,500,000 | | Lots value | Not specified | | Awards value | Not specified | | Contracts value | Not specified | ## Status | Field | Value | | --- | --- | | Tender status | Planned | | Lots status | Planned | | Awards status | Not specified | | Contracts status | Not specified | ## Buyer | Field | Value | | --- | --- | | Main buyer | TRANSPORT FOR LONDON | | Locality | LONDON | | Post town | East London | | Postcode | E20 1JN | | Country | England | | ITL 1 | TLI London | | ITL 2 | TLI4 Inner London - East | | ITL 3 | TLI41 Hackney and Newham | | Local authority | Newham | | Electoral ward | Stratford Olympic Park | | Westminster constituency | Stratford and Bow | | Delivery location | TLI London | ## CPV Codes ### Divisions - 34 - Transport equipment and auxiliary products to transportation - 50 - Repair and maintenance services ### Codes - 34600000 - Railway and tramway locomotives and rolling stock and associated parts - 50000000 - Repair and maintenance services ## Release History - 11 May 2026 at 14:17 - Planning - UK2 - Preliminary Market Engagement Notice - https://www.find-tender.service.gov.uk/Notice/043087-2026 - 27 Apr 2026 at 13:26 - PlanningUpdate - UK1 - Pipeline Notice - https://www.find-tender.service.gov.uk/Notice/038090-2026 - 26 Apr 2026 at 19:57 - Planning - UK1 - Pipeline Notice - https://www.find-tender.service.gov.uk/Notice/037807-2026 ## Documents - https://www.find-tender.service.gov.uk/Notice/043087-2026 11th May 2026 - Preliminary market engagement notice on Find a Tender - https://www.find-tender.service.gov.uk/Notice/038090-2026 27th April 2026 - Pipeline notice on Find a Tender - https://www.find-tender.service.gov.uk/Notice/037807-2026 26th April 2026 - Pipeline notice on Find a Tender ## Notice URLs - https://www.legislation.gov.uk/ukpga/2023/54/contents ## Provenance This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-h6vhtk-068b28. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-068b28.json.