To work in comfort I would like for a few main things to be checked/sorted prior enamelling work:
Make sure that you have no dripping water onto a surface that requires repairs. Good to check if you know how to stop the water off in case of an urgent need.
Provide me with access to at least one, ideally two power sockets (230v, unless 110v required).
Clear the room of all that is easy to move, to provide good access.
If you are renovating your bathroom, do communicate with me, so I will be the least invasive and nothing will stop me from delivering the best possible finish.