A
alasdairp
I think if you have to ask - the best answer is to get a local qualified sparks in to do the job. If you really believe that you are competent (and you sound as id you should be... but then...) it is OK to do it but then, officially, you should get someone who can sign off on Part Pee to check it and sign it off. Officially you will need that if you sell the house - but I have never known it to be asked for or checked! If you do it yourself you should get and follow the On Site IET inspection and testing testing guide - indeed all the IET On Site related guides are good. BTW - IF you replace the consumer unit you will be taking responsibility for checking that all the wiring in the house is up to current test standards (you can have mixed colours and mixed wiring types (but you should have a label/sticker stating this), but all must be adequate and in good condition to pass the formal tests).
