I contacted Plumbing Force for a quote, in which I wrote and verbally communicated that the electrics of my boiler had stopped working, along with the manufacturer (Vaillant) and model (Ecotec Plus 937 combi). They said a call out would be minimum £120 + VAT. The guy came out, and while he was nice enough, he looked at my boiler for literally about 2 mins, then spent the next 10+ mins in his van 'on a call with the manufacturer', only to come inside and tell me he couldn't help in any way whatsoever because the electrics were out (which is EXACTLY what I previously communicated) and he doesn't deal with that. He quoted me £900+ for new circuit board (PCB) and display, which I easily found online for less than £200. In total, he was at my home for no more than 20 mins and I was out £144 for zero assistance or any helpful information.