KBSA and TrustMark, what they actually mean
The KBSA (Kitchen Bathroom Bedroom Specialists Association) is the main UK trade body for the sector, though membership is limited to a few hundred companies nationally, so not every kitchen fitter will hold it. TrustMark is a broader government-endorsed scheme covering many trades — worth asking which, if either, your fitter holds rather than assuming either is standard.
Kitchen layout, the "working triangle" and beyond
The traditional advice is to keep the sink, hob and fridge in an efficient triangle so you're not crossing the kitchen constantly while cooking — still a useful starting point, though open-plan and island layouts sometimes work better with a different logic. Worth discussing how you actually use a kitchen day to day, not just the theory.
Knocking through for an open-plan kitchen
Removing a wall between a kitchen and adjoining room to create an open-plan space is a structural job, not just a kitchen fitting one — it needs a structural engineer's assessment and, if the wall is load-bearing, a supporting beam, plus building control sign-off. This is usually coordinated with, not done by, the kitchen fitter directly.
Kitchen work and home insurance
Insurers may ask whether recent electrical or plumbing work in a kitchen was done by a registered professional when assessing a fire or water damage claim. Keep receipts and certification from any kitchen refit work in case they're needed later.
Kitchen electrics need a registered electrician
A kitchen refit usually means new dedicated circuits for higher-draw appliances (oven, hob, dishwasher) rather than sharing a ring main, plus RCD protection near the sink — this is notifiable work under Part P. If your kitchen fitter isn't a registered electrician themselves, ask who handles this part and whether they're NICEIC or NAPIT registered.
Adding a kitchen island, what to consider
An island needs enough surrounding clearance to be usable (not just fit), and if it includes a sink or hob, plumbing and electrics need to reach it — often via the floor, which is far easier to plan during a full refit than retrofit into an existing floor later.
Choosing a kitchen sink and tap
A single, larger bowl is often more practical than a traditional 1.5 bowl for modern dishwasher-owning households. A boiling water tap adds real convenience but needs a dedicated under-sink unit and its own electrical supply — worth deciding early if you want one, since it affects the plumbing and electrical first-fix.
Common kitchen fitting jobs
Kitchen fitters handle everything from a single worktop or cupboard door replacement to a full gut-and-refit: removing old units, fitting new cabinetry, worktops, and coordinating the plumbing and electrical work a kitchen needs (sink, dishwasher, oven, extractor). Many fitters manage the whole job and bring in a plumber or electrician for specific parts.