Ladywell kitchens
The kitchens we meet in Ladywell
The reason splashback and upstand work in Ladywell is quoted per kitchen rather than per metre comes down to the range of rooms these worktops end up in. Conservation-area Victorian terraces and semis, many split into upper and lower flats, lower flats get the garden and a rear extension with a proper kitchen-diner, upper flats keep a compact galley over the back addition with a sloping ceiling at one end. We would rather find an out of square wall at survey than on fitting day, so the survey is thorough and unhurried.
A hundred and forty years of alterations sit under the current kitchen, and the worktop is what has to sit flat on top of all of it. Cutting sockets and switch plates into stone is a workshop operation, so the electrics have to be final before the template. Making the wall good first is cheaper than working around it.
The rear wall is usually a single brick thick and has been rendered, patched and re-rendered, so it bows in and out along the length of the run. Lath-and-plaster on the party wall and the chimney breast returns almost never runs true, so a 100mm upstand bedded on silicone is the honest answer here, it rides the bow and hides the junction the worktop can never close on its own. Solid plaster on brick takes a panel; a hollow wall wants thought.
The fabric of the place is Victorian terrace, Victorian semi-detached villa, 1930s flats and postwar infill. Two of those can sit on the same street and quote a long way apart.