Electrician is refusing to give certificate

Yes, he should issue a certificate for the work at the very least a minor works cert, and if its a new circuit should be submitted to building regs (part p ) .

Certificates are a must for most electrical jobs. Charge you more for connecting them to the supply?? Thought that’s what he was there for! I would get shot of this bloke as soon as to be honest. For the price he is charging what he hasn’t done should all be inclusive and you should not have to ask for a certificate. I wouldn’t have paid him until all the above were completed. Edit... you need not to know what certificate to issue, he should know. There is only 3 types, and one doesn’t apply. I think he was going to get someone else in to certify it etc, that’s why he is asking for more money, this bloke clearly has not the credentials to do the job from start to finish.

You should have been issued with a certificate yes. Altering or adding to an existing circuit requires a minor works certificate, installing a new circuit requires an electrical installation certificate.

Yes you should get at least a minor works certificate from him. The fact he says it needs connecting to the main supply for him to give a cert would make me question whether he has done the job right or not.

A minor works certificate must not be used to certify the installation of a new circuit, even if the circuit supplies only one point (one accessory). It should be noted that before an addition or alteration is undertaken, Regulation 132.16 requires the adequacy of the existing installation to be assessed, including the earthing, bonding and maximum demand, for the altered circumstances.