I called to deal with a sink odor which turned out to be due to buildup in runoff drain. They cleaned it out; after they left, the sink itself didn't drain. My other plumber came by later, opened the trap and removed lots of black debris, which had been scraped out by Addison's but left in the drain trap. With our 2 running toilets, the ballcock was replaced in each. As the Addison plumber left, I was told that one of the toilets may require a $175 call-back (to remove the tank and further fix the problem) if their repair was insufficient. I called my other plumber, who in 5 minutes replaced a worn $2 seal, which did NOT require removing the tank. Also, while the Addison plumber was unaware I could overhear his phone conversation with the boss, I overhead him say, "Don't worry, she'll pay later one way or the other -- we'll be back in 4 days -- $175, or $455 if she decides to replace the entire toilet". They were, needless to say, not invited back, and never will be.