Yes. Very good.
I'm sure the insurance company will pay the client out after a fire when he produces his certification from a non registered person/organisation. Not.
My mates a good diy'er. He's was fed up with his rewireable fuses blowing all the time so he changes his fuseboard and uprates the his protective devices.
Purchases his green cert (only for non approved contractors) and fills it out.
Cable meltdown follows and small fire strangely starts.
Catch my drift.
Yes I do catch your drift but, as we know your mate is a good diyer & he would be notifying the cu change with LBC before undertaking the work (as is required by part P), then LABC would be inpspecting FF & testing upon completion & certifying said cu change, insurance company is happy (same as if jibspark was to do this work).
Now if your diyer mate was to undertake some minor works that do not need LABC notification such as extend a circuit, & had a fire as a result then his insurance company maywell ask
"Who did the electrical work...you did great, are you a member of any electrical organisation such as niceic...no ok then, wheres the certs, oh they're nice green ones & you've filled them out, are you competent to do so?"
and the answer would have to be a no because your average diyer wouldnt know IR from Zs would they.
But if jibspark being a fully insured selfemployed weekend working sparky did this minor works & the fire still broke out the insurance company would possibly say
"are you a member of any electrical scheme... no ok then, where are the certs, oh they're nice green ones & you've filled them out, are you competent to do so?, right ok you have 2330 / NVQ3 work full time as a spark & you have 2381 & 2391, ok so it seems you are competent to undertake & test this kind work"
What I'm getting at is...just because who ever does the work isnt a member of an organisation doesnt mean they are not competent to do the work , or that an insurance company will not pay out (we all know they will try to squirm out of paying) because an individual or company are not in any electrical organisation.
What the insurance company will do is get one of their assessors (probably niceic registered) in to check over the work to assess if the work has been undertaken & fully complies with BS7671. If the work is ok & complies with 7671 the insurance company are stuffed. If it doesn't comply then the installer is on a sticky wicket & better have some good insurance.
And now I'm off to bed.