How to make a complaint

The first point of contact for any complaints relating to HS2 is its Helpdesk. The Commissioner’s role is to mediate in unresolved disputes between the project and individuals or bodies.  The Helpdesk has two free of charge telephone contact numbers, staffed 7 days a week:

  • 24-hour Freephone telephone number: 08081 434 434.
  • 24-hour Freephone mini-com number: 08081 456 472 for callers with hearing or speech difficulties.

To contact the Construction Commissioner please use the ‘Contact’ box via this website.