Published date: 15 October 2025

Open opportunity - This means that the contract is currently active, and the buying department is looking for potential suppliers to fulfil the contract.


Closing: 29 October 2025, 12pm

Contract summary

Industry

  • Ventilation ducting - 39563530

  • Ventilation equipment - 42520000

Location of contract

West Midlands, London, South East

Value of contract

£5,000,000 to £10,000,000

Procurement reference

C4N101108764

Published date

15 October 2025

Closing date

29 October 2025

Closing time

12pm

Contract start date

28 February 2027

Contract end date

29 February 2028

Contract type

Supply contract

Contract is suitable for SMEs?

Yes

Contract is suitable for VCSEs?

No

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.

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.

More information

Links

How to apply

Follow the instructions given in the description or the more information section.

About the buyer

Contact name

David Smith

Address

70 St. Mary Axe
London
EC3A8BE
UK

Telephone

+447921243727

Email

david.smith3@workingwithcostain.com