Had an old oil tank replaced. The crew showed up within 10 minutes of the estimated arrival time. Since the oil tank was in the basement, there was some difficulty getting the new tank down the stairs. They had to remove the railing to get enough space. When they completed the installation, they re-installed the railing and said "we took it down, we'll put it back up." Its nice to see that kind of work ethic these days. They kept me informed of some of the items they were seeing and what they would like to adjust, such the amount of slough that had built up in the tank, which slowed down the removal process, and also their request to change the location the fill pipe outside to be in a more convenient location and not partially underground. They were also able to refill the new tank with most of the, shall we say cleaner parts of the existing oil, reducing how much needed to be disposed of and replaced.