rcssmb & MIGEM thanks very much for those links. They make perfect sense, and are just what I needed to give me an overview of what tasks they should carry out, so I can discuss them up front with the engineer and ask about their results.
Hi, I'm afraid I've have had a couple of very poor experiences with heating engineers previously (yes even Gas Safe registered ones).
So, I'd like to know what general tasks should be included when a boiler service is carried out?
Please note that I am not asking for advice on how to carry...