What Affects Kitchen Renovation Cost in Great Britain?

The British trade distinguishes three grades of cabinet. Flat-pack units arrive in boxes and are assembled on site — cheapest to buy, but assembly time shifts cost into the fitting bill, and lighter carcasses tolerate less abuse over the years. Rigid units come pre-built from trade suppliers, fit faster, and hold adjustments better. Bespoke joinery is made to the room, which is the only honest answer for awkward period spaces — sloping floors, chimney breasts, out-of-square walls — but it carries a workshop price.

The size of that ladder is easy to underestimate, and three sources that count it in completely different ways agree on where it starts. Checkatrade prices kitchen units supply-only at £1,500 to £10,000, averaging £3,000, from tradespeople's quoted work. MyBuilder, drawing on its own tradespeople, puts cabinets at £1,500 to £7,000. Which? ignores tradespeople entirely and sent researchers into showrooms posing as customers, pricing a twelve-unit kitchen — handles, cornices, plinths, pelmets and end panels included, worktops and appliances excluded — at each major brand, among them £1,500 to £2,500 at Ikea, £2,500 to £4,500 at Benchmarx, £3,000 to £6,000 at Wren, £4,000 to £5,000 at B&Q and £7,000 to £9,000 at Magnet, VAT included, collected in May 2025. A quoted average, a marketplace range and a secret-shopping exercise landing on the same £1,500 floor is about as much corroboration as this market offers.

Bespoke is where the sources stop agreeing, and the disagreement is worth understanding rather than averaging away. Checkatrade prices made-to-measure cabinetry at £12,000 to £25,000, averaging £18,500, before worktops, appliances or fitting. Richard Davonport, whose firm makes bespoke kitchens, told Homebuilding & Renovating that a kitchen genuinely designed and manufactured in Britain needs a starting budget of £60,000 to £70,000 for a smaller room. Both can be true: the first prices made-to-measure units from a joiner, the second a commissioned piece of fitted furniture developed from first principles. When a quote calls itself bespoke, the question is which of those two things it means. The calculator's finish level maps loosely onto this ladder, and it multiplies nearly every materials line, which is why finish level moves an estimate more than any single product choice.

Worktop choice is the clearest example of identical kitchens diverging on price. Laminate is inexpensive, fitted by the kitchen fitter in a morning, and modern boards are convincing imitations of stone. Solid wood sits mid-table but demands oiling and care around the sink. Quartz and granite need templating, fabrication, and a separate two-visit installation by a stoneworker — you pay for the material and for an extra trade on the programme.

Checkatrade prices a five-metre worktop run inclusive of VAT at £200 to £800 for laminate (average £500), £300 to £900 for solid wood (£600), £500 to £1,100 for quartz (£800) and £550 to £1,150 for granite (£850). The fitting labour diverges further than the material does: £40 to £60 per square metre for laminate against £80 to £130 for quartz and £120 to £180 for granite. Stone also prices its details separately — roughly £180 for an unpolished cut-out and £150 for drainer grooves — so a sink, a hob and a drainer each add a line that a laminate quote simply does not have.

MyBuilder starts laminate at the same £200 but runs its top end to over £2,500 for quartz or granite, and puts worktop fitting at £200 to £2,500 as a labour line in its own right. It does not state a run length, so the two are not directly comparable — the useful reading is that the cheap end of this decision is genuinely settled at around £200 while the expensive end depends entirely on how much stone you are buying. Price your own run in metres before comparing any published figure to it.

Keeping the sink, hob, and appliances where they stand keeps plumbers and electricians in second-fix territory. Move them, and you are paying for new pipe runs, waste routes with adequate fall, and new circuits — which in England and Wales brings Part P building-regulations notification, and any gas hob or boiler work must go through a Gas Safe registered engineer. Knocking through to make a kitchen-diner adds a steel, building control sign-off, and making-good. This is exactly the gap between the calculator's pull-and-replace and full-gut scopes, and it is routinely the difference between a tidy job and a project.

The scale of the difference shows in what a services allowance looks like when nothing moves. Checkatrade's kitchen job estimator carries £300 for plumbing and £500 for electrics as per-project averages — the cost of connecting a kitchen where it stands.

Set those against a second source and something useful falls out. MyBuilder quotes the same two trades as ranges rather than points: £300 to £1,000 for plumbing and £500 to £1,500 for electrical work. Checkatrade's averages sit exactly on the bottom of both. That is not a contradiction — an average of connection work should sit near the floor of a range that also contains first-fix work — but it does mean a homeowner who budgets services off a single per-project average is budgeting the cheapest version of the job. Carry the top of the range for any kitchen where the sink moves, the circuits are original, or the walls are solid.

Older housing stock adds its own line items. Chasing cables into the solid brick or stone walls of a Victorian terrace is slower than dropping them through a modern stud wall, and uneven floors in period properties turn levelling base units into genuine labour rather than a formality.

A full appliance package — oven, hob, hood, integrated fridge-freezer, dishwasher — is a substantial slab of any quote, which is why the calculator carries a dedicated toggle for it. Checkatrade's estimator budgets around £2,000 per project for appliances and prices individual items separately, including £275 for a built-in gas oven, £140 for a built-in electric one and £300 for an extractor fan and its installation. That £2,000 is a choice, not a floor. Which?, which tests appliances rather than pricing kitchens, lists starting prices for the models it rates Great Value at £160 for a single oven, £100 for a hob, £140 for a cooker hood and £180 for a fridge-freezer — a four-item package under £600, VAT included, as listed in November 2025. MyBuilder's ranges reach the other way: £200 to £1,500 for an oven, £150 to £1,000 for a hob, £300 to £2,000 for a fridge-freezer and £250 to £800 for a dishwasher, with £50 to £200 on top for delivery and installation. Appliances are the one line where the same kitchen can honestly cost £600 or £5,000, so decide the number yourself rather than inheriting an average. Which? does add a caution worth weighing against pure thrift: asked where they regretted underspending, its members named appliances more often than anything else. Region matters too: fitting labour in London runs well above the national average while much of the North and Midlands sits below it, and the calculator's regional setting applies that adjustment. Nationally, Checkatrade puts a kitchen fitter at £250 to £350 a day, averaging £300 — the unit almost every British fitting quote is built from, because fitting is charged by the day rather than the hour.

Finally, scrutinise what the quote actually covers. Supply-and-fit packages from big retailers and a fit-only price on supply-only units describe the same kitchen differently; check VAT is included, and ask explicitly about flooring, tiling, waste-away, and appliance connection — the classic exclusions that surface as extras later. Waste-away is the one homeowners forget: Checkatrade puts skip hire for a kitchen strip-out at £200 to £250 a week, averaging £225, and a skip that sits on the drive for a fortnight is charged for a fortnight.