John was servicing a boiler which he had expertly installed along with a radiator and ancillary equipment twelve months ago. I live in East Anglia but I know that I can rely upon John to do what he is asked to do in South London at the time agreed and, in the case of the major works, at exactly the price quoted. I didn’t ask for a price for this recent work because I knew that the charge would be reasonable. John is very knowledgeable about his trade and is always a pleasure to deal with.