It is important that you bring in somebody who is familiar with electricity to begin with. Then, I would rather find one in the yellow pages. The businesses that pay high dollars for advertisements got to be competitive in their prices and follow through on their promises. Another good source for electricians would be to contact The New Business Engineering Unit of the Department of Water and Power. I used to work in this unit and these guys deal with a lot of electricians. They will have a pretty good idea which electrician knows his field pretty good.
LADWP Electric Service Planning Districts
Office Locations
Valley Office
7501 Tyrone Avenue
Van Nuys, CA 91405
(Covering area north of Mulholland Dr., inclusive)
Tel: (818) 771–4100
FAX: (818) 771–4066
Metropolitan Office
2633 Artesian Street, Suite 210
Los Angeles, Ca 90031
(Covering area south of Mulholland Dr.)
Tel: (213) 367–6000
FAX: (213) 367–6027
Ask to speak with an Engineering Designer and say you have some questions to ask about electrical service. Give the secretary your address and she will connect you with the appropriate representative.