Just wanted to find out what a ballpark figure would be for supplying a 32kw Biasi combi and removing old boiler, CWSC,F&E,shower pump and flush and adjusting pipework( Will be helping my Gas Safe mate) The job is for my brother(a right tight**s!!) My mate said with us both doing it and supply £2K all in does this sound ok?(I know u can't see the job) It's a detached 3 bed house and my mate said the gas supply will need upgrading as it enters boiler i think in 15mm. He put the phone down on me when i told him this and he said he'd get BG to do it!! He's keeping old rads and pipework is 10mm and I know the feed and vent set up is piped in reverse since house was built in early 80s i think. All guidance appreciated either way.