To me I would say that although the price you have been charged for the actual component is more than you could have bought it for, if the electrician supplied and installed it then if it doesn't work and he has to repeat the work. He has to stand the cost of his labour for the repeat install. If you buy and he fits and subsequently it doesn't work you have to pay for the electricians time again!!
So getting the electrician to buy and install is effectively an insurance against it not working and having to pay labour twice.
When you asked him to do the the job were you not happy with the price and what he was proposing?
So getting the electrician to buy and install is effectively an insurance against it not working and having to pay labour twice.
When you asked him to do the the job were you not happy with the price and what he was proposing?