HomeReno Cost

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How to Budget for a Kitchen Renovation in Great Britain

By the HomeRenoCost Editorial Team · Reviewed 2026-08-12

A kitchen budget fails in one of two ways: it gets spent twice over on doors and worktops before anyone has priced the fitting, or it has no slack left when the floor comes up and the pipework underneath turns out to be older than the house deeds suggested. Budgeting well means setting a ceiling first, splitting the money deliberately across units, worktops, appliances, services, and labour, and protecting a contingency you genuinely do not touch. The calculator on the pillar page is the natural starting point — run your room through it with different scopes and finish levels before a single brochure is opened.

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Anchor the budget before the showroom visit

Showrooms are designed to move your ceiling upwards, so fix it beforehand. Run the calculator with your floor area and an honest scope, look at the range it returns for your region, and decide what you can actually commit — including VAT, which most consumer-facing quotes include but trade quotes sometimes leave off.

It helps to know where other British households have landed before you name a number. B&Q puts a new kitchen installation at £5,000 to £25,000 or more, with £7,000 to £10,000 the typical spend. The HomeOwners Alliance reports an average kitchen renovation budget of £10,300, with 22% of homeowners spending £5,000 to £10,000, 27% spending £10,000 to £20,000 and 18% spending over £35,000. That last figure is the one worth sitting with: roughly one household in five is running a project several times the size of that £10,300 average, which is why an unqualified 'average kitchen' number is nearly useless as a ceiling. Homebuilding & Renovating, describing the market by specification rather than by survey, puts a mid-range kitchen — made-to-order units, better carcass materials, a showroom design service — at £10,000 to £20,000, which is the same band the largest group of the Alliance's homeowners actually reported paying.

A kitchen also has a sensible relationship to the value of the house: spectacular bespoke joinery in a modest terrace rarely pays its way at sale, while a tired kitchen in an otherwise good home costs more in buyer perception than a mid-range refit would have.

Split the spend deliberately

Units and fitting labour are usually the largest slices of a kitchen budget, with appliances, worktops, flooring, and services work behind them. Checkatrade's own kitchen job estimator puts numbers on that shape, carrying per-project averages of £3,000 for units, £3,000 for installation, £2,000 for appliances, £1,000 for worktops, £750 for flooring, £500 for electrics and £300 for plumbing. It is a useful skeleton rather than a quote: the two £3,000 lines confirm that units and labour really are the twin peaks, and that the services most homeowners worry about are the smallest lines on the list until the layout moves.

The practical discipline is to allocate before you select: decide what share goes to units, what to worktops, what to appliances, and what is reserved for the fitting and services, then choose products that fit the allocation rather than letting one beautiful worktop quietly eat the appliance budget. Spend where hands and eyes land daily — hinges, drawer runners, the worktop, the tap — and economise where nobody looks, like carcass interiors and the inside of an end panel.

Where the savings genuinely are

The cheapest kitchen decision in Britain is keeping the existing layout: leaving the sink, hob, and appliance positions alone keeps plumbers and electricians in second-fix territory and avoids a chunk of notifiable work. Which? reaches the same conclusion from its own research and puts it first among its money-saving steps, adding that keeping appliances that still work saves the best part of £1,000 — a more conservative figure than the £2,000 the Checkatrade estimator sets aside for an appliance package, and a useful reminder that what you save by keeping appliances is what you would have spent, not what a package costs on average. After that, the big levers are the supply route — flat-pack units cost less than rigid, and big-retailer sales come around predictably. The third lever is choosing laminate over stone for this round of the kitchen's life, and it is the most measurable of the three: a five-metre worktop run averages £500 in laminate against £850 in granite, and the fitting labour runs £40 to £60 per square metre for laminate against £120 to £180 for granite. A refresh scope, refacing the units and replacing the worktops, delivers most of the visual change for a fraction of the disruption.

Be wary of false economies. A bargain fitter who leaves the Part P notification unhandled, or a gas hob connected by anyone other than a Gas Safe registered engineer, creates problems that surface at survey when you sell. Paying properly for compliance is part of the budget, not an optional extra.

Contingency and cash-flow

Hold back a slice of the total for what the strip-out reveals: perished pipework, undersized circuits, damp behind the old units, floors that need levelling compound before anything sits straight. Checkatrade's advice on budgeting accurately is to obtain detailed quotes and include a contingency fund of 10-20%, set against an average full renovation at a budget specification of £11,500. Kitchen design manager Charlotte Butler, quoted in Homebuilding & Renovating, independently lands in the same territory from the designer's side of the table — around 10% of total project value, and weighted higher in older properties where problems emerge once floors or walls are opened up. That £11,500 prices a fuller job than the £5,000 to £10,000 installation band on the pillar page, which is why it sits above it rather than contradicting it. If the contingency survives the project, it buys the splashback upgrade at the end.

Watch the payment schedule too: deposits to secure units are normal, but stage payments should track work completed, and a fitter asking for the bulk of the labour money up front is a warning sign, not a convenience. The HomeOwners Alliance suggests paying at least £100 of any deposit by credit card, because Section 75 of the Consumer Credit Act protects anything you buy costing between £100 and £30,000 irrespective of bankruptcy, damage, or trouble with the supplier — a band that covers the great majority of British kitchen projects, and costs nothing to arrange.

Step by step

  1. 1

    Set the ceiling with the calculator

    Enter your floor area, scope, finish level, and region in the calculator and treat the returned range as the envelope. Check it against the published market: £7,000 to £10,000 is B&Q's typical new-kitchen installation and £10,300 is the HomeOwners Alliance's average renovation budget. Decide your maximum including VAT before visiting any showroom.

  2. 2

    Choose the scope to fit the money

    If the envelope is tight, work the scope downwards: full gut to pull-and-replace, pull-and-replace to refresh. Keeping the existing layout is the single largest saving available in a kitchen project.

  3. 3

    Allocate across the big lines

    Split the budget across units, worktops, appliances, flooring, services, and fitting before selecting products. Checkatrade's estimator shape — £3,000 units, £3,000 installation, £2,000 appliances, £1,000 worktops — is a reasonable starting split to argue with. Use the appliances toggle to see what keeping your existing appliances frees up.

  4. 4

    Price both supply routes

    Get a supply-and-fit quote from a retailer and a supply-only price plus an independent fitter's quote for the same specification. Compare them VAT-inclusive and line by line, noting exclusions. The benchmarks to hold them against are £1,500 to £10,000 for units supply-only and £2,000 to £6,000 to fit an average-sized family kitchen. Disregard any headline discount while you compare: Which? found showroom quotes that already included reductions of 72% to 78% at one brand and none at all at another, so the percentage describes the brand's pricing convention rather than your saving.

  5. 5

    Ring-fence the contingency

    Reserve a genuine contingency — Checkatrade suggests 10-20% — for what the strip-out uncovers, and do not allocate it to upgrades in advance. Old pipework, tired circuits, and uneven floors are discovered, not chosen.

  6. 6

    Agree the payment schedule in writing

    Tie stage payments to completed work — units delivered, first fix done, fitting complete, snagging closed. Put at least £100 of the deposit on a credit card for Section 75 protection, which covers purchases from £100 to £30,000. Confirm who handles Part P notification and Gas Safe sign-off before contracts are signed.

Frequently asked questions

How much contingency should I keep for a kitchen renovation?
Checkatrade's guidance is a contingency fund of 10-20%, weighted towards the higher end in older properties where strip-out surprises — perished pipework, solid-wall chasing, uneven floors — are more likely. On the £11,500 it gives as the average full renovation at a budget specification, that is a meaningful reserve rather than a rounding error. That £11,500 prices a fuller job than the £5,000 to £10,000 budget band on the pillar page, which comes from B&Q pricing a new kitchen installation, so the two measure different scopes rather than disagreeing.
What is the best way to do a kitchen on a budget?
Keep the existing layout, choose the refresh scope where the carcasses are sound, keep working appliances, pick laminate worktops and flat-pack units, and time the purchase to a retailer sale. Spend the protected money on fitting quality and compliance rather than on finishes.
Should appliances come out of the kitchen budget or be bought separately?
Treat them as one budget either way, because they compete for the same money — Checkatrade's estimator sets aside about £2,000 per project for appliances, roughly two-thirds of what it allows for the units themselves. Buying appliances separately in sales can undercut a retailer's package price, but confirm your fitter will install and connect third-party appliances and that gas work goes to a Gas Safe registered engineer.

Ready to price your project?

Use the calculator for an itemized planning range, then compare contractor quotes against the same scope and assumptions.

Open the kitchen renovation cost calculator

Sources