Roto-Rooter Group

I had an old kitchen sink that was working but looked old. I bought a new sink and had Roto Rooter install it on 11/13/22. The next day I noticed that the sink was not draining well. I called them and they had someone come out on 11/16/22 and said that it was not covered under the warranty and it was going to cost over $565 to clean out the drain even though it was working before they put the sink in and it was only two days old.