Rockhill Electrical Systems was prompt and efficient. We're happy with their work! I don't know much about what the rates for electrical companies are, but the service was good. We have no complaints! I'm not experienced with electrical work, but it was quite a big job. It was very professional, and things like that are very costly. One must agree to do that excellent electrical service, and it has to be right. We're happy with them. As far as the expense, it was not the cheapest in town but I would say it was first class. You pay for what you get!