I have used them twice. irst tIme because I had tree roots in a sewer drain line. they cut the roots and made sure everything was draining fine. I used them because one of their plumbers was at Crumps and he was so nice and helped me find a cartridge--he wasn't even working there. Tooter, he gave me his card. Perfectly satisfied with both times I used them. Never got Tooter, but Cameron was very polite, fast and competent.