"Is that just for the boiler, or boiler plus flue and other accessories?"
I don't have the full quote anymore as declined it, but even adding a flue its still well under £1k below what the quote had itemised as the boiler. The quote wouldn't have included any timer or controller as I would be reusing an already installed Tado system.
"Where do you get your RRP? Are you sure you are comparing like for like?"
Plumbnation (1st google result) and its like for like as I specified which boiler I was interested in.
"Would never dream of attempting to hide my labour price by inflating component prices if i want to make £££ then that what i price at i dont pretend im making ££ and sticking ££ on parts prices . in todays world of everything being visible on internet i dont see the point."
Agreed. If the quote had been presented like this I wouldn't have even considered questioning it
"Sometimes, tight customers might want to supply their own parts for cars."
I don't consider questioning the boiler RRP being more than £1k over a plumbers merchants being "tight"
"Either way, yes there's normally a markup on what is supplied (I add 20%) as it covers things like initial warranty callouts"
Now I'm probably about to upset a bunch of people, but heyho - Perhaps it's different with boilers, but if I bought a TV for example with a 1year warranty and I needed to use it, it wouldn't cost me anymore for the repair work, additionally if I paid for an extended warranty I still wouldn't have to pay any extra (other than the initial cost of the extended warranty of course). If the big selling point of some of the premium boilers is the length of the warranties, but only if fitted by an approved installer and the installer charges 50% more for the boiler in the first place, this doesn't seem like good value to me.
Now, for the time being, most of this is moot as I am probably going to get my mains upgraded first anyway, on the recommendation of the chap who came out to do the survey for the quote, he was super helpful and we had a good chat about the options available, I was just a little disappointed about the markup on the boiler itself.