Initially, they tried to get me to pay a fee just to get a quote, which is already an unusual practice. But what really bothered me, was that I was not told about the actual cost until they had already arrived and done all the surveiling, then they told me just for them to look, it would be over $200 (a lot for a charge whose ammount they didn't even specify over the phone).
When they finally got back to me, they quoted over four times as much as the plumber we eventually went with, and wanted to perform a totally unecessary reroute or an existing exhaust duct, rather than insert the new one just a few feet further, a decision that they made which allegedly would double the price of the plumbing operation.
Everything about them was extraneous and pushy, I felt uncomfortable with how they always presented greatly inflated prices, only after conversations of sweet talking, and very superficial customer service promises. I am not surprised that many other people have complained about extra costs and half arsed jobs, as their income seems to come from victims, not clients.