Kitchen installer near Windsor/Slough

Looking for a decent kitchen installer to install a DIY-kitchens kitchen.
Currently seem to have a load of jokers (or Im way out of touch with current prices!) on the shortlist, the latest who quoted £4750 to install 6 cabinets& worktop, install a fridge\feezer, oven & hob and paint the walls which seemed rather excessive…..

thx in adv

just to be clear- that was fit, not supply at £4750. It was close to £9k with supply of Howdens units.

ive fitted a few kitchens…happy to work at half the above price 🙂