Edge polishing for island units or sink cutouts will hike the price. £4k
(1)
is not untypical for an average kitchen.

Very approximate figures for our kitchen were (from memory):

100 - laminate
300 - beech
500 - iroko
2500 - granite

It is a galley, no joins, but a Belfast cutout. (The laminate wouldn't work
for that reason).

Christian.