Caspian was recommended by our next door neighbor. They had a look at our old unit that was no longer functioning properly. They tested our unit (which was very old) and then discussed what kind of unit would suit our home, and gave us a quote. The unit was installed the next week, and they arrived on time and completed the work the same day. We are very satisfied with the work, and with their thoroughness and their friendly approach. The work done matched their quoted price.