--- title: "Operations and Engineering Services Framework" ocid: "ocds-h6vhtk-06ece5" canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-06ece5" markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-06ece5.md" json_url: "https://d3tenders.com/contract/ocds-h6vhtk-06ece5.json" source: "Find A Tender Service" current_stage: "Tender" buyer: "Caledonian Sleeper Limited" published: "2026-08-26" --- # Operations and Engineering Services Framework Buyer: Caledonian Sleeper Limited Current stage: Tender OCID: ocds-h6vhtk-06ece5 [View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-h6vhtk-06ece5) [Download OCDS JSON](https://d3tenders.com/contract/ocds-h6vhtk-06ece5.json) ## Summary Caledonian Sleeper Limited is procuring a multi-supplier operational support engineering services framework for work across its UK operations. The requirement covers six areas: mechanical and general engineering, including fitting, repair, fabrication and welding; electrical and controls support, including low-voltage works, fault finding and temporary power; plumbing and welfare support; specialist engineering services such as non-destructive testing, inspections, corrosion work, temporary works design, lifting advice and technical investigations; digital and data support for condition monitoring, predictive maintenance, datasets and operational reporting; and emergency response services, including 24/7 call-outs, urgent interventions, mobilisation and temporary works. The framework is intended to provide a compliant and flexible route for reactive, planned and minor support services. Work is to be delivered across the United Kingdom. The procurement has reached tender: CSL invited offers through an open procedure, with electronic submission required. The estimated total value is £800,000. It is a framework agreement for up to 25 participants, with any lots capable of being combined. Bids were due by 5 October 2026 at 16:00, with bid opening and the start of the award period scheduled for 16:30 the same day. Each lot has a 1,800-day contract period, with no renewal or additional purchase options. Bids must remain valid for 180 days and be submitted in English; variants are not allowed. Evaluation for every lot allocates 40% to price and 60% to quality, assessed through five equally weighted criteria covering capability, scope control, delivery or response, compliance, assurance, reporting or related requirements. This opportunity suits suppliers able to provide practical engineering or operational support within defined CSL-controlled boundaries, rather than OEM-controlled rolling stock or depot systems. Relevant businesses may specialise in mechanical repair, fabrication and coded welding; low-voltage electrical work and safe controls support; plumbing, drainage and welfare continuity; testing, inspection, corrosion, temporary works, lifting or engineering assurance; operational data, monitoring devices, analytics support and secure data handling; or round-the-clock incident response and rapid mobilisation. Bidders should be able to demonstrate technical competence, safe working, clear interface management, controlled temporary solutions, fault or incident response, reporting and operational integration. Specialist suppliers need appropriate authority for their services, while digital providers must respect system boundaries and confidentiality. The framework also suits businesses with capacity to support planned work and urgent call-outs across UK operations. ## Notice Caledonian Sleeper Limited (CSL) is seeking to establish a multi-supplier Operational Support Engineering Framework to provide a compliant, agile and cost-effective route for the procurement of reactive, planned and minor engineering and operational support services required across CSL operations. ### Lot Information MECHANICAL AND GENERAL ENGINEERING This lot covers mechanical and general engineering support services required to support CSL operations, including: mechanical fitting and repair light fabrication welding, including coded welding where relevant ancillary equipment repair temporary mechanical arrangements repair or modification of non-integrated mechanical systems basic plant and equipment support where within CSL-controlled scope non-OEM HVAC mechanical support metalwork, brackets, supports and local fabricated solutions mechanical support to temporary operational fixes Additional information: Exclusions Specific to Lot 1 rolling stock mechanical systems covered under TSSSA depot mechanical systems owned by Alstom or site owner safety-critical traction, brake or other OEM systems ELECTRICAL AND CONTROLS This lot covers electrical and controls support services, including: low voltage electrical works temporary electrical arrangements non-integrated lighting systems control panel works on non-OEM assets fault finding on approved systems cable routing and connection for temporary arrangements temporary power distribution arrangements minor electrical support to CSL-controlled ancillary assets non-integrated controls support local system modifications outside OEM scope Additional information: Exclusions Specific to Lot 2: OEM-controlled rolling stock electrical systems depot fixed electrical infrastructure HV systems unless expressly stated and properly authorised works already within Alstom or CAF responsibility PLUMBING AND WELFARE This lot covers plumbing and welfare-related operational support, including: plumbing repairs to CSL-controlled systems minor drainage support leak response welfare facility supports where within CSL commissioning authority temporary water arrangements repair or replacement of localised pipework or fittings in approved scope response to water ingress or similar operational issues temporary welfare service continuity arrangements hygiene related support associated with welfare systems Additional information: Exclusions Specific to Lot 3: depot-wide plumbing infrastructure owned by site owner integrated train plumbing systems under TSSSA major building services works SPECIALIST ENGINEERING SERVICES This lot covers specialist support services, including: non-destructive testing specialist inspections corrosion treatment or assessment temporary works design engineering assessment services lifting support and related specialist advice specialist technical investigations reporting and assurance support on defined interventions specialist measurement and testing services local engineering assurance where required Additional information: Exclusions Specific to Lot 5: OEM certification work beyond supplier competence or authority services reserved to another contract or statutory body services requiring a separate regulated procurement due to value or strategic nature DIGITAL AND DATA SUPPORT This lot covers digital and data support services, including: data extraction from approved sources data cleansing and transformation creation of structured datasets support to predictive maintenance initiatives support to condition monitoring initiatives support to third party analytics providers engaged by CSL set up of non-integrated monitoring devices or sensors dashboard or reporting support directly related to operational use cases data handling support linked to engineering or operational investigations technical support to improve data usability for CSL decision making Additional information: Exclusions Specific to Lot 6: unauthorised access to OEM restricted systems modification of CAF or Alstom systems without approval large-scale software development or enterprise platforms not suited to this Framework EMERGENCY RESPONSE SERVICES This lot covers emergency response and incident support services, including: 24/7 call-out support urgent operational interventions rapid deployment to stabilise or mitigate service-affecting issues emergency temporary works immediate support to restore operational continuity urgent attendance for fault investigation outside restricted scope emergency logistics and mobilisation provision of on-call resources to support operational continuity urgent support to containment, isolation or temporary workaround activity Additional information: Exclusions Specific to Lot 6: emergency works falling wholly within CAF or Alstom contractual responsibility blue light or statutory emergency services functions uncontrolled instruction of works without CSL authorisation ## Key Details | Field | Value | | --- | --- | | Publication source | Find A Tender Service | | Latest notice | https://www.find-tender.service.gov.uk/Notice/081438-2026 | | Notice type | Tender Notice | | Procurement type | Framework | | Procurement category | Services | | Procurement method | Open | | Procurement method details | Open procedure | | Tender suitability | Not specified | | Awardee scale | Not specified | | All stages | Tender | ## Dates | Field | Value | | --- | --- | | Publication date | 26 Aug 2026 | | Submission deadline | 5 Oct 2026 | | Future notice date | Not specified | | Award date | Not specified | | Contract period | Not specified | | Recurrence | Not specified | ## Values | Field | Value | | --- | --- | | Tender value | £800,000 | | Lots value | Not specified | | Awards value | Not specified | | Contracts value | Not specified | ## Status | Field | Value | | --- | --- | | Tender status | Active | | Lots status | Active | | Awards status | Not specified | | Contracts status | Not specified | ## Buyer | Field | Value | | --- | --- | | Main buyer | Caledonian Sleeper Limited | | Locality | INVERNESS | | Postcode area | Inverness | | Postcode | IV1 1PP | | Country | Scotland | | ITL 1 | TLM Scotland | | ITL 2 | TLM2 Highlands and Islands | | ITL 3 | TLM20 Highlands and Islands | | Local authority | Highland | | Electoral ward | Inverness Central | | Westminster constituency | Inverness, Skye and West Ross-shire | | Delivery location | Not specified | ## CPV Codes ### Divisions - 33 - Medical equipments, pharmaceuticals and personal care products - 45 - Construction work - 71 - Architectural, construction, engineering and inspection services - 72 - IT services: consulting, software development, Internet and support ### Codes - 33180000 - Functional support - 45315100 - Electrical engineering installation works - 45330000 - Plumbing and sanitary works - 71336000 - Engineering support services - 72300000 - Data services ## Release History - 26 Aug 2026 at 15:20 - Tender - Tender Notice - https://www.find-tender.service.gov.uk/Notice/081438-2026 ## Notice URLs - http://www.publiccontractsscotland.gov.uk - http://www.sleeper.scot - https://api.publiccontractsscotland.gov.uk/v1/Notice?id=ocds-r6ebe6-0000841190 - https://www.publiccontractsscotland.gov.uk/ESPD/ESPD_Download.aspx?id=841190 - https://www.publiccontractsscotland.gov.uk/Search/Search_Switch.aspx?ID=841190 - https://www.publiccontractsscotland.gov.uk/search/Search_AuthProfile.aspx?ID=AA30648 - https://www.publiccontractsscotland.gov.uk/sitehelp/help_guides.aspx ## 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-06ece5. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-06ece5.json.