--- title: "Operations and Engineering Services Framework" ocid: "ocds-r6ebe6-0000841190" canonical_url: "https://d3tenders.com/contract/?ocid=ocds-r6ebe6-0000841190" markdown_url: "https://d3tenders.com/contract/ocds-r6ebe6-0000841190.md" json_url: "https://d3tenders.com/contract/ocds-r6ebe6-0000841190.json" source: "Public Contracts Scotland" 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-r6ebe6-0000841190 [View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-r6ebe6-0000841190) [Download OCDS JSON](https://d3tenders.com/contract/ocds-r6ebe6-0000841190.json) ## Summary Caledonian Sleeper Limited is seeking suppliers for a multi-supplier operational support engineering framework serving its railway operations across the UK. The requirement covers reactive, planned and minor engineering and operational support. Six service areas are available: mechanical and general engineering; electrical and controls; plumbing and welfare; specialist engineering services; digital and data support; and emergency response services. Work may include mechanical repairs and fabrication, low-voltage electrical support, plumbing and temporary water arrangements, inspections and testing, data cleansing and monitoring support, and urgent interventions to maintain operational continuity. Suppliers can offer for any combination of the lots. Services must remain within Caledonian Sleeper-controlled assets and approved scope, excluding relevant OEM, depot-owner, statutory and major infrastructure responsibilities. The buyer has reached the tender stage and invited offers through an open procedure, with electronic submission. Bids were due by 5 October 2026 at 16:00, followed by bid opening at 16:30 the same day. The framework has an estimated total value of £800,000. Each lot has a contract duration of 1,800 days, and the framework may appoint up to 25 suppliers. Bids must remain valid for 180 days. Suppliers may bid for any lots, and lots may be combined. Evaluation for each lot gives 20 points to scope awareness and control and 40 points to price. English is the submission language, variants are not allowed, and electronic payment and ordering are provided for. This opportunity suits engineering and operational support businesses able to respond within a controlled railway environment and work within defined OEM and asset-owner boundaries. Relevant capabilities include mechanical fitting, repair, light fabrication, welding including coded welding where required, ancillary equipment and non-OEM HVAC support; low-voltage electrical and controls work; plumbing, drainage, leak response and welfare systems; non-destructive testing, specialist inspection, corrosion assessment, temporary works design, lifting support, measurement, assurance and technical reporting. Digital specialists may provide data extraction, cleansing, transformation, condition-monitoring, predictive-maintenance and operational dashboard support. Emergency-response providers need 24/7 call-out, rapid mobilisation, fault investigation, temporary works, logistics and on-call resources to protect service continuity. ## 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. 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. 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. 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. 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. 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. 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 | Public Contracts Scotland | | Latest notice | https://www.publiccontractsscotland.gov.uk/search/show/search_view.aspx?ID=AUG563153 | | Notice type | OJEU - F5 - Contract Notice (Utilities) | | 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 01:00 - Tender - OJEU - F5 - Contract Notice (Utilities) - https://www.publiccontractsscotland.gov.uk/search/show/search_view.aspx?ID=AUG563153 ## Documents - https://www.publiccontractsscotland.gov.uk/search/show/search_view.aspx?ID=AUG563153 Operations and Engineering Services Framework - 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. ## Notice URLs - http:// - http://www.publiccontractsscotland.gov.uk - http://www.publiccontractsscotland.gov.uk/Search/Search_Switch.aspx?ID=841190 - http://www.publiccontractsscotland.gov.uk/sitehelp/help_guides.aspx - 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 ## 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-r6ebe6-0000841190. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-r6ebe6-0000841190.json.