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Tunnel Ventilation System Design & Survey
Buyer: Costain Limited (H7-Heathrow)Region: LondonValue: £5.0MCloses: 9 Jun 2026 (1d)
Costain Limited seeks an MEP subcontractor to survey and design replacement of ventilation components (fan drives, air circuit breakers, lighting, and small power) across multiple terminal buildings at Heathrow. The work covers RIBA 4 design phase only, excluding construction, with an estimated budget of £2.5m–£5m.
Key requirements
- ▸Experience replacing electrical infrastructure in operational rail networks
- ▸Capability to survey ventilation buildings during non-operational hours
- ▸RIBA 4 design stage delivery for MEP systems
- ▸Knowledge of Variable Speed Drives (VSD) and low voltage switchgear
- ▸Understanding of Tunnel Control System integration
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