I have recently bought, a rather delapidated old property, it has been
> rewired a few years ago, but id like a new consumer unit with split
> load and rcd. my question is if id like to do this myself, obviously i
> wont be able to touch the service cut out but do i call out the
> electricity board for this? do they charge and come back later to
> connect the meter tails?
Ring them and ask. They were perfectly happy for me to break their seal on the cut-out (main fuse) in commercial premises in hertfordshire, and they never bothered to come and replace it. They didn't even bother to replace it when they came a few months later to uprate the fuse on another phase in the same cutout.
Also do i have to prove that it has been tested?
I have never been asked, but others have. I suspect it depends if the job looks like it has been done to professional standards.
or can they do that?
I don't think the guys who deal with the cut-outs and meter tails will do it themselves. If they are concerned, they will ask for an inspection certificate.
and if so what is the usual fee? this
> property is in the hertfordshire area.