Expansion vessel replacement Worcester Bosch combi

[Cheadle]

Does anyone know how long it would take two boiler engineers to fit a new expansion vessel in a combi boiler? The engineers said there would be two of them coming because I think they need to take the boiler off the wall. Thanks.

Not sure but if you have a suitable space it's much cheaper to get a generic one fitted somewhere and the broken one just capped off. Like a couple of hundred pounds instead of several.

Not sure why they require two guys. I would bet you can't get two guys working on your boiler simultaneously. Most expansion vessels are at the back towards the top, and one guy should be able to swap one over is a couple of hours. Cost wise, I wouldn't expect to pay more that £50 from screwfix/plumb centre.