My kitchen drain clogged up and was unresponsive to chemical cleaners. The Eco Plumber came out and tried to snake out the drain (which had a very long run to the four inch sewer pipe) first with a smaller snake, and then with a large one.
Neither snake worked and he did a very good job explaining to me why these methods did not work and the need to jet out the pipes with hot water next week. We set up an appointment for Monday for that equipment to come out. He did not charge me for the three hours he was there since the clog remains.