The product once installed does what it says on the tin, but if your installation is complicated, as mine was, then Chargemaster will not do it. I had to resort in having a local electrician install the cable from the meter box to the required charger location. Chargemaster then topped and tailed it. The Chargemaster engineer that did the initial survey and final installation was very pleasant and efficient. I believe that the standard price for an installation includes 25 meters of cable (approx £100). As it was necessary for me to install my own cable, (I required 50 meters), then I had to supply it myself. Although I supplied and paid for my own cable I still had to pay the standard installation cost. No allowance was given for non supplied cable.