Mechanical, electrical, plumbing works in Chalfont St Giles, Bucks
Work item: HS2-ALIGN-26-2562
Work Item Summary
- Project Phase
- Phase 1
- Region
- Buckinghamshire
- Location
- Bottom House Farm Lane, Chalfont St Giles ventilation shaft
- Worksite Name
- Chalfont St Giles ventilation shaft
- Contractor
- Align JV
- Type of works
- Electrical Works, Fire main installations, Mechanical works, Plumbing Installation works
- Estimated Start Date
- 05/10/2026
- Estimated End Date
- 31/12/2028
What we are doing
Mechanical, electrical and plumbing installation works including the installation of ventilation and smoke extraction systems, firefighting water services, environmental control, and associated mechanical equipment required to support safe tunnel operation and emergency response for the future railway. Foul and surface water drainage systems, tunnel water management, and fire main installations supporting operational and emergency requirements.
Installation of welfare units. Teams will be working on site on Mondays to Saturdays within the compound and buildings. Occasional deliveries using Heavy Goods Vehicles or small vans.
HS2 is undergoing a comprehensive reset to ensure it can be built efficiently and for the lowest reasonable cost. This work is being carried out in stages and will be completed in 2026. We will provide you with updates on the reset and what this means for our plans to build the railway in your area.
Download information relating to these works
Find out more about
If you have a question about HS2 or our works, please contact our HS2 Helpdesk team on 08081 434 434 or email [email protected]