My current kitchen doesn’t have a dishwasher. There’s a cupboard I’d remove to create enough space for a slimline machine, which is between an integrated oven unit and a sink unit, so clearly there are electrics and water/waste in the vicinity but there’s no plug in the back of the cupboard space and I assume the pipes need redirecting.
Given it’s electrics and plumbing, what kind of tradesperson do I want? It looks like the sales companies that offer installation will only do it if it’s a replacement, not if there wasn’t one there before.