Aqua fast flush

I have had troubles for many years and several plummers come out and snake my drains costing me at least a 100.$$ each time and with in just a couple of months the drain was blocked again. these guys came out and tried to snake my drain spending several hours the first day then after losing the head of the snake. they came the next day and took out my toilet and removed part of the wall replacing some very old pipes, that were so eroded that their was no room left. they cleaned up after themselves and and were very good as if they were not even there. except that for the past year the sink has worked.