I have a BG boiler, fitted by them and serviced by them every year, it leaked so I called them out, engineer looked at it said it was dead and I needed a new boiler not bad when had not even taken the cover off. When I got him to do that he stated that the heat exchanger had rusted, offered me £700 towards new boiler, after quote which still left me a £3000 bill , I told them no fix mine, they did and basically built a new boiler, then I got told my service contract would not pay out anymore due to sludge £800 to replace and I needed a magna cleaner , strange they fitted that last year, they have never topped up the inhibator so I said its your fault, also told me my header tank needed to be a single feed, told them that they fitted that. Guess what they no longer want to talk to me..........