My sister has a rather large shed for which she would like to get some power and lighting set up (6 double sockets & 2 batten type lights) distance from cu to shed is approx 40ft. She needs to obviously get the cable run to shed cu (30mA RCD + 32 Amp + 6 Amp MCB's) done by an electrician. However as regards the actual internal shed sockets, lighting, conduit etc is that something I could do for her after the electrician has run the supply from the house to the shed? Would that fall foul of any regulations, it seems a bit of a grey area to me. Setting up the (radial?) circuit for sockets is relatively straightforward I would think. The only appliance requiring a constant supply is a freezer, there is also a tumble dryer in there so would 6mm SWA be sufficient (no I don't know why she wants so many sockets!). FYI she has just been quoted £1200, 4 days work for the whole job which to me seems excessive with the materials circa £300. 4 days seems long particularly as 95% of the SWA he is going to cleat onto gravel board and posts of new fencing and there are already holes from the house cu to an external wall from a previous external socket which was removed when the house was completely rewired a couple of weeks ago.