I ask because I need some rewiring, including a new CU; and, despite the horrors of Part P, I was inclined to DIY so as to spread the disruption over a longer period in a more manageable way. (It is only a small Victorian terrace but with no trunking/conduits I'd rather improve things as I get around to redecorating each room.)
I accepted I would have to pay for inspections (although another story is that my LA flatly refuse to do inspect anything electrical, no matter what the legislation requires). But it is a fairly old installation with a plastic Wylex CU with wired fuses, thin meter tails and no isolator. And an incomer which looks as if it has not been touched for many years. I don't really fancy cutting the seals on *both* the incomer *and* the cover for the tails on the meter in order to pull the fuses and fit new tails to an isolator. I read previous threads about suppliers fitting isolators or getting them fitted. But our supplier (Scottish Power) won't do this. Nor will EDF (the distribution company). Scottish Power will provide (free) a disconnect and reconnect morning/afternoon to allow time to fit an isolator. But they will only reconnect if there is a safety certificate. I can't get a safety certificate if I DIY the isolator (because the LA won't play). So it looks as if I have to pay for one to be installed professionally by someone who can issue a certificate . Right, please?
But will I get the safety certificate given the installation itself is not up to scratch? I can see several faults which is why I want to improve it. So I can't see how a professional can certify it.
If not (as I fear) am I left with a choice between (a) doing nothing, (b) paying £'000s for a complete rewire in one (with all the knock-on effects - including the risk to my blood pressure) and (c) pulling the incomer fuses - despite my reservations?