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WP6235 -T5D MEP Subcontractor

Deadline:09 Jun 2026, 21:34 BST

Tender information

UK CF

Maidenhead, United Kingdom

Type: services (tender)
Ref. number: e2e89ebe-cb92-4ba4-9e90-1788e7eaa3ad-900115
Estimated value: 2,500,000 – 5,000,000 GBP
CPV: 71320000

Expression of Interest T5D MEP Subcontractor T5D Attenuator Overhaul (Survey / RIBA 4iii) Scope The T5D Rail-tunnel Ventilation Shaft is located adjacent to T5D at its North and can be accessed from the bot…

tom (Level 6) via the trackside of the HEX tunnel or from the top (level 7) via Airside. The objective is to replace the four attenuators in the T5D Shaft because they are at their end of life. The renewal of the T5D attenuators aims to reduce the risk of debris entering fans, tunnel

s and station, prevent the fans from failing in any fire scenario and provide ventilation and smoke clearance for the Heathrow Rail Tunnels. This improves safety conditions in Heathrow Rail Tunnels and improves resilience of systems. In add

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