15-20% over the proper amount, above and beyond their normal profit. That's not all that unusual in that space. I worked in a field closely tied to the industry. I'm amazed it functions as well as it does.
That estimate is based on the fact that since the last true independent company in our area was bought out by the big guys, prices for all subsequent jobs rose 15% - 20%. I'm all for business making as much profit as possible. I'm not against profit, I'm against predatory pricing that limits competition.