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.
Three steps to hiring the right kitchen fitter
First, ask to see photos of similar completed jobs. Second, clarify exactly who handles the electrical and plumbing work. Third, get a written quote that separates units, worktop, appliances and labour, so you can see where the money's actually going.
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.
Workmanship guarantees on kitchen fitting
Ask what's covered by a workmanship guarantee specifically — unit installation and worktop fitting should be explicitly included. Appliance manufacturer warranties are separate and worth registering promptly; some require registration within a set period after installation to be valid.
Kitchen lighting layers
A well-lit kitchen usually combines general ceiling lighting, task lighting (under-cabinet lights over worktops, where most food prep happens), and sometimes accent lighting — a single central ceiling light alone often leaves worktops in shadow. Worth planning lighting circuits before, not after, unit installation.
Energy-efficient kitchen choices
A-rated appliances cost more upfront but less to run over their lifetime — worth weighing against how heavily an appliance will actually be used. LED under-cabinet and ceiling lighting also cuts running costs compared to older halogen fittings, with no real trade-off in light quality.
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.
Kitchen ventilation and extraction
An extractor hood vented to the outside removes cooking odours and moisture more effectively than a recirculating (filter-only) hood, but needs ducting planned into the layout — easier to arrange during a full refit than retrofit afterwards. Building Regulations require adequate ventilation in kitchens generally.