I had heard the ads on the Radio about clean room booties in the home... and yeah they do that... they were very knowledgeable, but I felt $880.00 to clear a plugged main drain was way too much. They found the drain clean out port using their equipment (they do have excellent diagnostic equipment). So now I know where my clean out is, and I can do it myself. So, if you aren't handy, and need competent work done at a (By the book) price, these are your guys.
I'm personally not a fan of "by the book" pricing, where the company tells the plumbers how much to charge for each job. For the 10 min fix you're paying $2,000.00/Hr. But for the really bad problems you're paying $20.00/hour. Anyway a good solid company to be sure, but those prices, OUCH!