Kitchens as part of a wider extension
A kitchen fitted as part of a house extension needs closer coordination between the builder and kitchen fitter on timing — services (electrics, plumbing, ventilation ducting) need to be roughed in during the build phase, before the kitchen fitter's own first-fix stage begins.
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.
Kitchen flooring options
Vinyl and laminate are budget-friendly and reasonably water-resistant. Porcelain tile is more durable and higher-end but needs a sound, flat subfloor. Engineered wood looks warmer but needs more care around water near the sink and dishwasher — worth weighing durability against look for how the kitchen is actually used.
Kitchen fitting in older properties
Older properties sometimes have uneven floors and walls, or original chimney breasts and alcoves that affect standard unit layouts — a fitter working on a period property will usually survey these carefully before quoting, since standard-width units don't always fit cleanly into non-standard spaces.
What affects the cost
Cost depends on worktop material (laminate vs stone vs wood), whether the layout is changing (moving plumbing/electrics vs replacing in place), unit quality, and appliance integration. Moving a sink or hob position adds cost beyond the units themselves because of the pipework and electrical work involved.
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.
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 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.