Maybe you could use a variation of the "$30 per hour, $45 if you watch, and $60 if you help" theme...
Or: Anything you have to fix, repair or replace of their work to pass code is double time and double materials cost.
If you don't need the work, make it worth your while, then document everything you did and did not do. If it isn't legal in your state for a homeowner to do their own electrical work, then walk, no, run away.
Oh, and don't forget "consultation and education" fees if they ask you any questions.
[This message has been edited by sparky66wv (edited 11-09-2002).]
