I had to make several calls to arrange a confirmed service on my boiler with continual mix ups dates from your advisors and finally being offered one out of the blue for next day when I had already made arrangements for one offered on another date. I trust that if I ever have a breakdown on my boiler during the warranty period that a far better service is available. After all the dust had settled and the engineer finally arrived he spent about 10 minutes servicing my boiler which I found puzzling as someone who has been involved in the servicing aspect of various machines during my working life. This service schedule includes also the checking and cleaning of the Adey filter on my system. Perhaps the service is a simple process which I am unaware off but it certainly was very quick. If I decide to use a qualified corgi firm/engineer next time ( British Gas or similar) the boiler requires servicing would this make my 10 year warranty invalid or do I have to remain with your company during this period. Regards William Pinkerton