Elizabeth Line Tunnel Ventilation and Controls System Maintenance

Assignment details for consultants

Only conditions published by the buyer are shown. Anything the source does not state is marked “Not stated” rather than assumed.

Individual consultant or consulting firm

Expression of interest

Notice classification

Required expertise

Railways & Rolling Stock

Notice category

Minimum qualifications

Not stated

Tender pack

Required years of experience

Not stated

Tender pack

Country or duty station

United Kingdom

Notice

Assignment duration

Not stated

Tender pack

Expected start date

Not stated

Tender pack

Submission method

Not stated

Tender pack

Required proposal documents

Not stated

Tender pack

Expression of interest requirements

Not stated

Notice

Mandatory registration

Not stated

Tender pack

Clarification deadline

Not stated

Tender pack

Submission deadline

02 Oct 2026

Notice

Classified as a consulting opportunity from the published summary.

Scope of works

Rail for London Infrastructure (RfLI) will issue a Tender for planned maintenance and repairs to the Tunnel Ventilation and Controls System on the Central Section of the Elizabeth Line. RfLI are responsible for maintenance of the Elizabeth Line. A fundamental element of the RfLI maintenance obligation is maintenance of the Tunnel Ventilation and Controls Systems - critical for the operational railway. The Tunnel Ventilation & Controls System on the Elizabeth Line are a critical part of the railway's infrastructure, designed to ensure safety, comfort, and operational reliability across the 21km of twin-bore tunnels beneath central London. These systems support both normal environmental management and emergency response, including smoke extraction and safe evacuation. They are fully integrated with fire detection systems and centrally managed through an automated SCADA control platform. The Elizabeth Line's Tunnel Ventilation & Controls System are vital to the safe and effective functioning of one of the UK's most advanced railway lines. Their robust design, automation, and safety integration ensure continuous protection for passengers and staff, while supporting the operational demands of a modern, high-frequency railway. Regular and rigorous maintenance is essential to ensure system reliability, safety compliance, and continuity of service in both normal and emergency scenarios The Rail Industry Supplier Qualification Scheme (RISQS) was utilised to identify the initial supplier longlist. RISQS is a Qualifying Utility Dynamic Market. Through RISQS, 157 potential suppliers were identified within the following RISQS (RICCL) categories: • D.E.5.1 - Fixed Ventilation Systems / Maintain • H.L.3.1 - General Building Management / Service A Market Sounding Questionnaire (MSQ) and Expression of Interest (EOI) were issued to these suppliers on the 12/11/2025. The suppliers who registered interest were invited to PSQ The MSQ obtained market feedback and supplier appetite, capability and capacity. The results from the findings were used to help shape the procurement strategy. Suppliers who engaged and expressed an interest was invited to participate in the PSQ Procurement Specific Questionnaire (PSQ) was published on 29/07/2026, Suppliers who participated will be invited to tender stage (ITT)

Type

Invitation to bid / open tender

Tender

Sector

Railways & Rolling Stock

Procedure

Competitive flexible procedure

Classification

Not published at source

Original notice

Sign in to open the original notice

Source provenance (1)

Every portal notice that contributed to this record, with the values each one published. Where portals disagree, the originating notice is the published record.

Key dates

1. Published at source07 Sept 2026
2. Submission deadline02 Oct 2026