Mark and Robert are a pleasure to do business with - from the beginning of the process (getting a quote) through to installation - both have been exceptional. Mark kept in touch during a long period when I was waiting on other tradesmen to complete tasks and then Robert came to install a pipe through the courtyard before the landscapers did their work. He returned when they had finished to install the full system quickly and efficiently, all the while taking account of a very shy, nervous but much loved, elderly pet! In addition to this great service, the information provided by Mark and Rob throughout the process has been excellent and I never felt that any of my questions were 'silly' or too simplistic. And perhaps most importantly Robert guided me as to the number of panels needed for the efficient heating of my home rather than the number required for maximum profit to the supplier! I have no hesitation in recommending them.