My neighbour has put up a large garage that sits alongside his house but not joined to it. He asked me to wire & fit out lights inside & sockets as well. Told him he needs to get SWA to supply it as he was insisting on runnning the supply in (save money I assume) & for some reason (mainly cos he's tight) he's went & put a plastic pipe from the house to the garage & run a 10mm twin & earth & a 10mm earth through it!! It looks rough as & to be honest I'm pretty annoyed as the cable was going to be run underground to in ducting to supply it. He's adamant he's leaving it like that unless he's breaking any rules! Anyone help?!?! If there's Reg that's not being complied with he'd have no option than to do it the way I said!