--- title: "P16 Tunnel Ventilation Attenuators" ocid: "ocds-b5fd17-adf331e9-3dd0-4e9b-a687-f5f12f8c1f86" canonical_url: "https://d3tenders.com/contract/?ocid=ocds-b5fd17-adf331e9-3dd0-4e9b-a687-f5f12f8c1f86" markdown_url: "https://d3tenders.com/contract/ocds-b5fd17-adf331e9-3dd0-4e9b-a687-f5f12f8c1f86.md" json_url: "https://d3tenders.com/contract/ocds-b5fd17-adf331e9-3dd0-4e9b-a687-f5f12f8c1f86.json" source: "Contracts Finder" current_stage: "Tender" buyer: "COSTAIN GROUP PLC" published: "2025-10-15" --- # P16 Tunnel Ventilation Attenuators Buyer: COSTAIN GROUP PLC Current stage: Tender OCID: ocds-b5fd17-adf331e9-3dd0-4e9b-a687-f5f12f8c1f86 [View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-b5fd17-adf331e9-3dd0-4e9b-a687-f5f12f8c1f86) [Download OCDS JSON](https://d3tenders.com/contract/ocds-b5fd17-adf331e9-3dd0-4e9b-a687-f5f12f8c1f86.json) ## Summary The public procurement process for the project titled "P16 Tunnel Ventilation Attenuators" is managed by Costain Group PLC, in collaboration with HS2 Ltd, a high-speed railway project connecting London to Birmingham. The industry category is centred on goods specifically related to ventilation ducting and equipment. The key geographic locations for this procurement are the West Midlands, London, and the South East of the United Kingdom. Currently in the tender stage, this procurement invites expressions of interest until 29th October 2025, with contracts scheduled to commence on 28th February 2027 and conclude on 29th February 2028. The procurement seeks innovative solutions contributing to health and safety, cost-effectiveness, quality, and environmental efficiency. This tender presents significant opportunities for businesses specialising in ventilation solutions, particularly those capable of providing innovative designs and advanced technical support. Companies experienced in the supply of tunnel ventilation equipment, including fan attenuators and acoustic panelling, will find this opportunity well-suited to their capabilities. With a projected contract value ranging between £5 million and £10 million, this tender favours enterprises, including SMEs, that can offer a rigorous approach to design, testing, and noise analysis. Engaging in this project may significantly enhance a company's portfolio in infrastructure projects, particularly within the expansive rail sector. ## Notice Costain have been appointed to deliver contract HRS02, the Tunnel and Lineside Mechanical and Electrical services for HS2 ltd. A high-speed railway project that connects London to Birmingham with plans to extend in the future. Package XX Tunnel Ventilation Attenuators scope for contract HRS02 consists of sound attenuators within the headhouses and ventilation shaft areas of the railway, the route being circa 180 km in length, inclusive of; - Tunnel Ventilation Fan Attenuators - Acoustic Panelling - Testing Costain require a supplier for design and supply only of the tunnel ventilation attenuator package. Costain and HS2 are looking for innovative and smart solutions that provide benefits in the following key areas; - Health and Safety - Programme - Installation and commissioning efficiency - Cost - Quality and Assurance efficiency - Whole life cost - Carbon efficiency All the innovation and design development must be accompanied with a rigorous approach to ensuring that the technical requirements are met. Including testing, where necessary. The scope of the design and supply will include the following; - Support to Costain's design partner through concept and detailed design - Noise analysis, modelling and calculations - Testing of products and arrangements - Provision of samples and mock ups - Commissioning support, as required Full details of the scope and specifications will be provided to the successfully shortlisted suppliers. Suppliers should be aware of the scale of the HS2 project and are to assess their internal capabilities to be able to carry out the intended scope of works prior to completing the expression of interest. ## Key Details | Field | Value | | --- | --- | | Publication source | Contracts Finder | | Latest notice | https://www.contractsfinder.service.gov.uk/Notice/ee534256-67d8-461d-8298-e3f9caf2959f | | Notice type | Tender Notice | | Procurement type | Standard | | Procurement category | Goods | | Procurement method | Not Specified | | Procurement method details | Not specified | | Tender suitability | SME | | Awardee scale | Not specified | | All stages | Tender | ## Dates | Field | Value | | --- | --- | | Publication date | 15 Oct 2025 | | Submission deadline | 29 Oct 2025 | | Future notice date | Not specified | | Award date | Not specified | | Contract period | 28 Feb 2027 - 29 Feb 2028 | | Recurrence | Not specified | ## Values | Field | Value | | --- | --- | | Tender value | £10,000,000 | | Lots value | Not specified | | Awards value | Not specified | | Contracts value | Not specified | ## Status | Field | Value | | --- | --- | | Tender status | Active | | Lots status | Not specified | | Awards status | Not specified | | Contracts status | Not specified | ## Buyer | Field | Value | | --- | --- | | Main buyer | COSTAIN GROUP PLC | | Locality | LONDON | | Post town | Central London | | Postcode | EC3A 8BE | | Country | England | | ITL 1 | TLI London | | ITL 2 | TLI3 Inner London - West | | ITL 3 | TLI35 Westminster and City of London | | Local authority | City of London | | Electoral ward | Aldgate | | Westminster constituency | Cities of London and Westminster | | Delivery location | TLG West Midlands (England), TLI London, TLJ South East (England) | ## CPV Codes ### Divisions - 39 - Furniture (incl. office furniture), furnishings, domestic appliances (excl. lighting) and cleaning products - 42 - Industrial machinery ### Codes - 39563530 - Ventilation ducting - 42520000 - Ventilation equipment ## Release History - 15 Oct 2025 at 10:00 - Tender - Tender Notice - https://www.contractsfinder.service.gov.uk/Notice/ee534256-67d8-461d-8298-e3f9caf2959f ## Documents - https://www.contractsfinder.service.gov.uk/Notice/ee534256-67d8-461d-8298-e3f9caf2959f 15th October 2025 - Opportunity notice on Contracts Finder - https://www.competefor.com/business/viewOpportunityDetailsSupplier.html?id=101108766 Please follow this link to view the notice. ## 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-b5fd17-adf331e9-3dd0-4e9b-a687-f5f12f8c1f86. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-b5fd17-adf331e9-3dd0-4e9b-a687-f5f12f8c1f86.json.