Don’t be afraid to ask your electrician for a breakdown of their costs and know exactly what you are paying for.
I know I would like to know who may be going in to my home, especially if I was going to be out of the house when the work is carried out. Trades people often sub contract to other companies and invite these people in without letting you know it is happening.
If we use any subcontractors (very rarely), we tell you that they will be coming, what job it is that they are going to be doing, and their contact details in case you would like to carry out your own checks. But also rest assured that we carry out our own checks on anybody that does work for us, and never instruct or recommend anybody without checking them out and making sure that we are happy with their work and the way they conduct their business.