Following the supply of the appendix information I had to call at least three times to get an answer about when the installation would be completed. Although we knew we needed another consumer unit we didn’t know it was to be installed outside of the main electrical box or indeed not adjacent to the internal main consumer unit. We were also not aware that an earthing rod was to be installed. The engineer firstly wanted to install this onto the surface of the drive which would have caused a trip hazard and we had to insist that this was not acceptable. The installation was eventually completed satisfactory.