New combi boiler enquiry? Looking to change my combi boiler surrounded by my 10/15 year old...

Looking to change my combi boiler surrounded by my 10/15 year old flat.the radiators (6 surrounded by all) all enjoy adjustable thermostats on.my shower also runs off the combi.

How much roughly is this going to be and is British Gas any virtuous?

Cheers for your help.
Answers:    You won't seize another answer like the one from neal g, because most associates know that the best boilers (uk) are Worcester Bosch and Vaillant, Glow worm is also owned by Vaillant, both had recall last year for workstation boards and heatex seals breaking down. British gas are not the cheapest, nor the best cover, manufacturer cover these days can be from other breakdown companies, so is not an member of staff of the manufacturer, company I work for are service agents for Worcester Bosch, carry a 5 years guarantee and excellent back up, they also own a good breakdown cover, though not surrounded by your area, website will distribute some good guidance though.
shop around.cheers