Supply and fit all materials, approx 18 metres of tiling, and rip out and replace a whole shower unit? Any rough estimates? UK
Just the labour cost approx - how much roughly would you expect, forget all the tiles and what type etc, adhesive etc just labour. How much would you charge?

First off I'm in the UK if that makes any difference... By the way its almost 2am here so I can't call anyone for advice!
I'm re tiling the bathroom and dropped a tile behind the radiator. its knocked out the screw to the earth wire that's connected to the back of the radiator where I can't get to in order to screw it back in. Its a terribly bad job because it's a council property, see pic below to get a better idea.

http://s678.photobucket.com/albums/vv148/ephedrinequeen/?action=view&current=DSCF4727.jpg

Is there any risk of electric shock? The door has been removed from the bathroom as I'm putting a new one in and I have a small dog in the house. What can I do? I have some electrical tape, would that help? Please could someone give me some advice, I'm worrying myself silly and I can't go to bed until I know what's what!
Also, have they made a complete mess of the wiring? Is it unsafe? I know that's irrelevant right now but on Monday I plan on ringing up and giving them the biggest b***ocking of their lives! They've obviously not done a good enough job if a screw just falls out.
Thanks for your answer, but I can't reconnect it. The thing (sorry, I don't know what it's called!) that the wire screws in to is behind the radiator, and there's only an inch gap between it and the wall.