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  • I have been getting some quotes to extend an existing unused 40A circuit 10 metres to my shed for a few sockets and a light. If I did it myself it would cost me about £150 in parts and about half a day's work. But electricians are quoting me over 2 grand to come and do the job.

    As it is a modification to an existing circuit it is non-notifiable work but I am hesitant to do the job myself from a liability perspective despite having done a lot of simpler legal electrical work (changing sockets, lights, adding outside socket etc) on my home before. What are people's thoughts on this kind of stuff?

  • From my limited understanding sheds can require special earthing so I'd want someone qualified to do it.

    Wouldn't you need a new CU in the shed and hence new circuits and the bit of paper?

  • I’d be heartily surprised if doing it properly was only half a days work tbh.
    40amp breaker isn’t really appropriate unless it’s a supply circuit to a new board with its own lighting and socket circuits (and this notifiable work as pointed out by @jellybaby ).
    You’d definitely want to test all those circuits properly as well, which you won’t be able to do unless you have a multi function tester and experience testing.

    There are ways that you could maybe do it to make it not notifiable but it would be doing it in a hokey way to try and bend the rules, which wouldn’t be wise in my opinion.

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