I may be dumb here but still wanted to understand it clearly. I checked with few people but no one could answer correctly.
I know someone who make electrical updates in his home by watching YouTube videos. He is confident but not licensed.
If anything ever goes wrong, how insurance can tell if it was done by a pro or not?
If there is no way to confirm that cause of issue(let's say fire) is because of electrical wire. Or if insurance do find out, then how can they confirm if fault was from a licensed person, unlicensed person or just naturally occurred?
Electricians issue a certificate for any works completed.