Understanding the labour vs materials split
Units, worktop and appliances are often the largest share of a kitchen's total cost, but fitting labour, old kitchen removal, and making good around new services add up too. A cheap quote is worth checking against the same unit/worktop spec as competing quotes, not just lower labour.
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.
Planning bin storage properly
Built-in pull-out bin drawers, sized for recycling separation, are far easier to plan into a layout during a refit than to add afterwards — worth deciding on bin capacity and separation needs (general waste, recycling, food waste) before cabinet layout is finalised, not after.
Gas hobs need a Gas Safe engineer
Installing or moving a gas hob is gas work, same as a boiler, and legally needs a Gas Safe registered engineer, not just a kitchen fitter or general plumber. If you're switching from electric to gas (or vice versa) as part of a refit, this needs coordinating separately from the general fitting work.
Food waste disposal units, what to know
An under-sink food waste disposal unit needs its own electrical connection and specific plumbing configuration — not every kitchen sink setup can accommodate one without modification, so it's worth deciding early in the planning rather than as an afterthought once plumbing is first-fixed.
Background checks and identity verification
Since kitchen fitting isn't gated by a single mandatory certification, checking trading history, a verifiable business address, and reviews referencing specific completed jobs matters more here than for trades with a clear registration body.
Respraying or painting existing units
Professionally sprayed cabinet doors can refresh a kitchen's look at a fraction of full replacement cost, provided the existing doors are a suitable material (solid wood or properly primed MDF, not all laminates take a respray well) — worth asking a fitter to assess suitability before committing either way.
Planning kitchen storage during a refit
Pull-out larders, corner carousel units, and drawer-based (rather than cupboard-based) storage all make better use of available space than standard cupboards, but need planning into the layout from the start rather than added afterwards. Worth discussing storage needs before finalising unit choices.