Plumbers Markus and Nathan were courteous, professional, and pleasant throughout their work at my home. They explained everything that they were going to do and, as needed, provided me with an explanation of the possible cost depending on which actions were employed so as to allow me to choose and to give my approval before the work was started. They worked together as a good team and I felt reassured of their training and experience leading us to a good problem resolution. They included running a camera through the system to ensure the clog was completely resolved and that there weren't other problems inside that part of the plumbing system. My understanding is that such camera work isn't always free-of-charge with some plumbing companies (or maybe it was long ago camera work had a cost for some companies) but they do not charge for using the camera in this instance. They cleaned-up after their work and made sure that the plumbing was working as intended and that all my questions were answered.Backup Plumbing is local to the Crestwood area and a small business and we had heard positive things about them which they proved from start to finish resolving our clogged sewer line. We will trust them with helping us on any future plumbing or septic system problems and would recommend Backup Plumbing to others people looking for a pleasant, trustworthy, small plumbing company.