Our main sewer line backed up into the first floor bathroom, causing leaks into the basement through the floor. Peter came at the time that he estimated he would (within an hour of when we called), and completed the job in a professional and thorough manner. He promised to make a follow-up appointment with the "underground" line expert early next week to send a camera down the line to determine the nature of the problem. His work tonight meant that we could use our toilets and showers in the morning, for which we are very grateful. We would (and will) recommend both Armstrong Plumbing, and Peter Chappell specifically, for the high-quality work that they do, quickly and at reasonable rates. Thank you for the work that you do.