I suspect he is paying a subcontractor $90/hr, essentially another company to do the work. I would expect the electrician is making around 1/3 - 1/2 of that cost which is still a pretty good wage, unless of course the electrician IS the company, if I am wrong I need to change my trade.

Jason
M80 v2
VP160 v3
QS8 v2
PB13 Ultra
Denon 3808
Samsung 85" Q70