We moved into a previously owned house in July of 2009, by the end of August both the kitchen and bathtub drains were very slow and did not improve by using drain-o. Also, we wanted to replace the kitchen faucet and at one time thought we might be able to do-it-yourself but to be honest we don't know what we're doing. We called Mr. Rooter when the kitchen sink was so bad that it took an hour for a sinkful of water to go down. Our technician, Alex, showed up within a few hours of us calling dispach (on time) and he did all the work that was needed, completely removing the pipes under the sink and finding about 10 plastic drinking straws in there (thanks to the previous owner). While he was working, he found a tiny crack in one of the pipes (p trap), which he pointed out to us, then replaced for no charge, which was pretty nice. All the work was done very cleanly, and professionally.