I live in a big Edwardian terrace.
There's a long kitchen - all the cooking stuff at one end, and a table at the other, though there are also some cupboards/units. It's been painted, retiled and generally tweaked - but essentially is much as it was when we bought it. And it's getting shabby.
I really have no wish for a gleaming space age kitchen with a huge oven, but the room is looking very tired. New units, different flooring, some retiling - maybe a partial reconfiguring of the layout?
I may get some quotes in the New Year, but it might be helpful to know when people have used big firms, what their experience has been and how much they've paid.
It's also possible that in a few years time we might move. New owners who want everything just so, might want to rip stuff out and start again. On the other hand, if we upgrade we'd get the pleasure of being in a nicer space for a while - and any improvements might make the place more saleable. (Though houses in our road usually do sell because of proximity of schools, shops etc etc.)