Sorry I know some get tired of the off topic threads. But I am in the process of having a stained and stamped concrete patio done at my house. I have talked to one company that wants to bring in a pump truck and pump the concrete over the top of the house due to there really not being a good way to bring trucks back there and to limit damage to my yard or my neighbors. Anyhow the patio will be roughly 500 square feet. Any concrete guys on here have a ballpark idea of what this should cost per sq. foot. looking at a pretty basic slate design. They will also have to tear out an existing 300 square foot patio and be responsible for any of the prep work.