What a good kitchen quote should include
A proper quote should specify unit and worktop brand/spec (not just "units, worktop"), whether appliances are supplied or just fitted, whether electrical and plumbing work is covered directly or subcontracted, and what happens if hidden issues are found once old units are removed.
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.
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.
First fix and second fix in a kitchen refit
"First fix" is pipework and electrical cabling before units go in; "second fix" is fitting appliances and connecting services once units and worktop are in place. Getting the sequence right avoids having to remove finished units to fix an overlooked service run.
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.
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.
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.