Tender

P23 Tunnel Fire Main System Design - Costain HRS02 Tunnel and Lineside M&E

COSTAIN GROUP PLC

This public procurement record has 1 release in its history.

Tender

20 Oct 2025 at 11:50

Tender Notice
Summary of the contracting process

The current tender process, initiated by Costain Group PLC, seeks expertise for the "P23 Tunnel Fire Main System Design" project, which is a part of the high-speed railway HS2 project connecting London to Birmingham. This procurement is classified under the industry category of fire-protection devices and services, and involves design work for a tunnel fire main system spanning approximately 111km within 14 dual bore tunnels. The project's scope includes full design validation and coordination, with emphasis on health and safety, cost efficiency, and innovative solutions. The procurement stage is currently active, with the tender period ending on the 5th of November 2025. The project will span various locations across the UK, specifically in the West Midlands, London, and the South East, and is expected to commence in mid-2027, concluding by October 2030.

This tender offers significant business growth opportunities, particularly for firms adept in mechanical and electrical services, and those capable of providing innovative design solutions for large-scale infrastructure projects. Given its extensive scope and technical demands, it is particularly suited to SMEs with capabilities in fire-protection systems, safety installations, and related engineering services. Such businesses will benefit from engaging in a project that promises a value range from £250,000 to £500,000, with a focus on ensuring robust safety standards and efficiency across the full lifecycle of the system. Interested parties are encouraged to assess their capabilities and express their interest by the specified deadline to partake in this transformative infrastructure project.

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Notice Information

Notice Title

P23 Tunnel Fire Main System Design - Costain HRS02 Tunnel and Lineside M&E

Notice Description

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. The HS2 project has 14no dual bore tunnels each of which has a fire main through the length of each bore - totalling approximately 111km of fire main. The tunnel fire mains are connected to falling mains from the various shaft buildings (13no) at intermediate points within the tunnels, and to portal areas at the start/end of each tunnel. Package P23 Tunnel System Fire Main Design scope is for the full design of the tunnel fire main system, including validation and co-ordination of the design already completed by other (Main works civils contractors) who are fitting out the fire main in the shaft and portal areas. Costain require a specialist designer to take the client's performance brief for this system and produce the design to enable construction, testing, commissioning, assurance and handover. 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 activities -Cost -Quality and Assurance Efficiency -Whole Life Cost -Carbon Efficiency The design development and any innovations must be accompanied with a rigorous approach to ensure that the technical requirements are met. The scope of design will include (but not be limited to) the following: Calculations for pipework sizing and specification including computation fluid dynamics Analysis of stress, expansion, thrust considerations and incorporation into the design Design of bracketry supports, anchors and associate fixings within the tunnel Production of BIM model and drawings outlining the spatial layout and co-ordination of the fire main Co-ordination with other services design, including but not limited to tunnel civils, handrail and bracketry design Support to Costain's overall M&E design partner through concept and detailed design Full details of the scope and project brief/specifications will be provided to the successfully shortlisted suppliers at the next procurement stage. 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.

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-b5fd17-2cdbd701-7034-4026-acb8-a3a5551ab792
Publication Source
Contracts Finder
Latest Notice
https://www.contractsfinder.service.gov.uk/Notice/6ea095b0-f5bd-44b7-9723-471b6e26cea4
Current Stage
Tender
All Stages
Tender

Procurement Classification

Notice Type
Tender Notice
Procurement Type
Standard
Procurement Category
Services
Procurement Method
Not Specified
Procurement Method Details
Tender Suitability
SME
Awardee Scale
Not specified

Common Procurement Vocabulary (CPV)

CPV Divisions

35 - Security, fire-fighting, police and defence equipment

44 - Construction structures and materials; auxiliary products to construction (except electric apparatus)

75 - Administration, defence and social security services

CPV Codes

35113300 - Safety installations

44482000 - Fire-protection devices

75251110 - Fire-prevention services

Notice Value(s)

Tender Value
£500,000 £500K-£1M
Lots Value
Not specified
Awards Value
Not specified
Contracts Value
Not specified

Notice Dates

Publication Date
20 Oct 20254 months ago
Submission Deadline
5 Nov 2025Expired
Future Notice Date
Not specified
Award Date
Not specified
Contract Period
29 Jun 2027 - 30 Oct 2030 3-4 years
Recurrence
Not specified

Notice Status

Tender Status
Active
Lots Status
Not Specified
Awards Status
Not Specified
Contracts Status
Not Specified

Buyer & Supplier

Contracting Authority (Buyer)

Main Buyer
COSTAIN GROUP PLC
Contact Name
Available with D3 Tenders Premium →
Contact Email
Available with D3 Tenders Premium →
Contact Phone
Available with D3 Tenders Premium →

Buyer Location

Locality
LONDON
Postcode
EC3A 8BE
Post Town
Central London
Country
England
Major Region (ITL 1)
TLI London
Basic Region (ITL 2)
TLI3 Inner London - West
Small Region (ITL 3)
TLI35 Westminster and City of London
Delivery Location
TLG West Midlands (England), TLI London, TLJ South East (England)
Local Authority
City of London
Electoral Ward
Aldgate
Westminster Constituency
Cities of London and Westminster

Further Information

Notice Documents

Open Contracting Data Standard (OCDS)

View full OCDS Record for this contracting process

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The Open Contracting Data Standard (OCDS) is a framework designed to increase transparency and access to public procurement data in the public sector. It is widely used by governments and organisations worldwide to report on procurement processes and contracts. 

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