Last year a customer of mine was having pavers done when I showed up to cut the lawn. I told him I was able to do that size job and was working it into the conversation as to why he didn't ask me for a quote. Anyway, we got to talking about price. Flat and square patio in back, approx. 16x25 and walkway around side to drive picking up side door along the way. Remove old slab 4". My price, off the top of my head and done on the spot... $13,000-$15,000. He got someone for $8500. I saw the job getting done. They ripped up the 4" slab, threw down about 1" of dust on top of the sub soil, and started laying bricks. Everything was dry cut. A nice cancer cloud hung in the air the whole time. And a note on professional courtesy, they didn't move a single tool out of my way.