Tender

P4 Transformers, Switches and Sockets - HRS02 Tunnel and Lineside M&E

COSTAIN GROUP PLC

This public procurement record has 1 release in its history.

Tender

02 Oct 2025 at 08:10

Tender Notice
Summary of the contracting process

The procurement process initiated by Costain Group PLC involves the supply of transformers, switches, and sockets for the HS2 high-speed railway project connecting London to Birmingham. The tender, titled "P4 Transformers, Switches and Sockets - HRS02 Tunnel and Lineside M&E", falls under the industry category of electric motors, generators, and transformers (CPV: 31100000). The procurement stage is currently at the tender phase, with all interested parties required to submit their expressions of interest by 14th October 2025. The goods are to be delivered across regions in the West Midlands, London, and the South East of the United Kingdom. The procurement method is not specifically detailed, but the tender has an estimated value ranging from £5,000,000 to £10,000,000.

This tender represents a significant opportunity for businesses specialising in transformers and electrical infrastructure to engage with a major infrastructure project like HS2. Small and medium-sized enterprises (SMEs) are encouraged to participate, provided they possess the capability to manage the scale of work required. The procurement presents a chance for companies that can deliver innovative, cost-effective, and efficient electrical solutions, particularly those that can enhance health and safety, programme efficiency, cost management, quality assurance, and carbon efficiency. The timeline for contract execution spans from 31st May 2027 to 30th April 2028, offering substantial business growth potential for successful suppliers.

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Notice Information

Notice Title

P4 Transformers, Switches and Sockets - HRS02 Tunnel and Lineside M&E

Notice Description

Scope/ What Will Be Required 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 4 the transformers, switches and sockets scope associated to contract HRS02 consists of supply of transformers, switches and sockets for the tunnel and open route sections of the railway, the route being circa 180 km in length, inclusive of; -Sockets and Transformers 110v - 230v -Sockets and Transformers 400v - 690v -Maintenance Transformers -ATS Isolators -ATS Isolator Switches -Auto Transformer Switches -Isolation Transformers Costain require a supplier for supply only of the Transformers, Switches and Sockets package. Costain and HS2 are looking for innovative and smart solutions that provide benefits in the following key areas; -Health & Safety -Programme - Installation and commissioning efficiency -Cost -Quality and Assurance efficiency -Whole life cost -Carbon efficiency The scope of supply will include the following; -Supply of Sockets and Transformers -Supply of Isolators -Supply of Auto Transformer Switches -Provision of samples and mock ups 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.

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-b5fd17-ed66ab91-d699-49d1-b76e-c4fc28c59536
Publication Source
Contracts Finder
Latest Notice
https://www.contractsfinder.service.gov.uk/Notice/2e6c3571-d774-45f1-87fb-c2b7dd28d7b0
Current Stage
Tender
All Stages
Tender

Procurement Classification

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

Common Procurement Vocabulary (CPV)

CPV Divisions

31 - Electrical machinery, apparatus, equipment and consumables; lighting

CPV Codes

31100000 - Electric motors, generators and transformers

31214100 - Switches

Notice Value(s)

Tender Value
£10,000,000 £10M-£100M
Lots Value
Not specified
Awards Value
Not specified
Contracts Value
Not specified

Notice Dates

Publication Date
2 Oct 20254 months ago
Submission Deadline
14 Oct 2025Expired
Future Notice Date
Not specified
Award Date
Not specified
Contract Period
30 May 2027 - 30 Apr 2028 6-12 months
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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