I have been quoted £4000 for the following job,

Supply and fit Worcester Bosch 35CDi Combi boiler.

Remove old combi boiler, brick up old flue. The new boiler is to go in
the garage, directly below the room in which the old boiler currently
resides so there will be some minor pipework to bring down the DHW, CH
in and out feeds and the water mains feed. The gas pipework goes past
the new location so there is no great work involved there.

I have done some research myself and actually got the quoting company
to confirm that there are no factors that make the job complex.

Am I a bit "out of touch" or is the price a bit high, I know I can get
the boiler and associated flue equipment for £1500 VAT inc and that is
without a trade discount, that means the actual work is being charged
at £2500.

Advice would be appreciated.

Thanks