Bay Area Consumers' Checkbook evaluates local services and had an
article on electricians on the Spring/Summer 2004 issue, Volume 10,
number 3. The listing was not very extensive, but they did list two
firms that serve San Francisco and are top-rated for quality:
483 Las Colindas Rd.
480 23rd St.
Electric Bill's was also top-rated for price.
Both of these firms, as well as others, are recommended on this page
from the Berkeley Parents Network:
Another source of recommendations is the Diamond Certified web site
run by American Ratings Corporation. They list two San Francisco
companies, which you can see on this page:
Roberts Electric is also Diamond Certified.
The Good Service Guide is a similar service. It lists two more firms
in San Francisco:
Roberts Electric is also listed in the Good Service Guide.
I have no personal experience with any of these firms, but I have had
positive experience with others recommended by the first two of these