To anyone who is looking at re-doing or designing a new kitchen, I would definitely recommend West London Kitchens.
I've now recommended them twice on NVN, (and no I do not have any commercial interest in the company!) - but in the last 12 months or so of doing a side and rear extension in SW12 (what should have been a simple job) the only truly simple part of the process was dealing with WLK.
A friend recently spent as much doing re-doing his kitchen (slightly smaller than ours) which he sourced from Howdens. His total cost was also slightly less than ours, however, in my opinion I would say our kitchen is MUCH better looking and better quality!! I have no hesitation in recommending them, and would definitely use them again (if we ever decide to build again... !)