Not many of my customers ask to buy their own materials but a few have. You have to charge extra because you know they will buy the worst/cheapest stuff they can find and it will take you longer to install everything. I do love it when they offer to buy the dimmers because of the warranty issue mentioned by Dave.

I actually like teaching the homeowners a few basic tricks when they are peeking over my shoulder the whole day. It makes the situation a little less uncomfortable and if they are going to try some wiring themselves I want them to do it right. They ALWAYS call me back to help them after they get in over their heads - "You made it look so easy I thought I could do it too----I'll pay whatever you want to get my wife off my back"

If they get too annoying, a well-timed short to ground with a few sparks works wonders. [Linked Image]

Pat

Power to the people