Kitchen Renovation Costs in London: Complete 2025 Price Guide

Budget kitchen renovation (standard kitchen from a flat-pack or mid-market range, like-for-like replacement, no structural changes, a typical 10-14m2 kitchen): Total cost including units, worktops, fitting, plumbing, electrics, and tiling: £8,000-£15,000. This tier covers: IKEA or B&Q kitchen units and doors; laminate or solid timber worktop; standard appliance installation (integrated appliances not included unless specified); basic splash-back tiling; plumbing connection for sink and dishwasher; electrical work for sockets, cooker circuit, extraction. Mid-range kitchen renovation (semi-custom or retailer's made-to-measure, mid-spec worktops and appliances, some structural changes possible): Total cost: £18,000-£35,000. This covers: Howdens, Wren, or similar semi-bespoke kitchen range; quartz or solid stone worktop; integrated mid-range appliances (oven, hob, dishwasher, fridge-freezer); underfloor heating connection if floor is being re-done; LED plinth lighting and pelmet lighting; quality tiling or large-format splashback. High-end kitchen renovation (bespoke or luxury retailer, premium specification, complex layout or open-plan reconfiguration): Total cost: £40,000-£100,000+. Includes bespoke cabinetry, natural stone worktops, high-end appliances (Gaggenau, Miele, Wolf, Sub-Zero), extensive joinery, premium flooring.

Many London kitchen renovation projects involve extending or opening up the kitchen space — either a rear extension to create a larger kitchen-diner, or removing the wall between the kitchen and the adjacent reception room to create an open-plan layout. These structural components add significantly to the kitchen project budget: Rear extension (3m x 4m = 12m2 single-storey): structural and shell cost of the extension approximately £25,000-£45,000 (including foundations, walls, roof, glazing, and making good), in addition to the kitchen fit-out cost above. Knocking through to an adjacent room (removing a load-bearing wall and installing an RSJ): typically £3,500-£7,000 including the structural engineer, beam supply and installation, padstones, and making good. Combined kitchen extension and renovation projects in London: £60,000-£150,000+ for a full rear extension with high-specification kitchen, depending on the size of the extension and kitchen specification. This is the most transformative project type and typically the best investment in London terraced properties where the kitchen is the most under-used and constrained space.

Kitchen units (cabinets): budget flat-pack (IKEA, B&Q): £3,000-£8,000 supply for a 10-14m2 kitchen. Semi-custom (Howdens, Wren, Magnet): £6,000-£18,000 supply. Bespoke or designer (deVOL, John Lewis of Hungerford, Neptune, Mark Wilkinson): £15,000-£60,000+ supply. Worktops: laminate: £100-£300 per linear metre supply and installation. Solid wood (oak, walnut): £200-£500/lm. Quartz composite (Silestone, Caesarstone, Compac): £300-£600/lm. Natural granite: £300-£700/lm. Marble: £500-£1,500/lm (significant variation by provenance). Dekton (ultra-compact surface): £500-£900/lm. For a typical London kitchen with approximately 5 linear metres of worktop, material cost: laminate £500-£1,500; quartz £1,500-£3,000; marble £2,500-£7,500. Kitchen fitting labour: professional kitchen fitting (assembly, installation, cutting worktops, making good): typically £1,500-£3,500 for a standard kitchen; £3,000-£6,000 for a complex or bespoke installation.

Plumbing costs in a kitchen renovation: standard plumbing works (connecting new sink, dishwasher, and supply pipes): £500-£1,000. Relocating the sink to a new position (requires extending waste runs and supply pipes): add £600-£1,500. Installing a new boiler or relocating the gas supply: £800-£2,500 (to be completed by a Gas Safe registered engineer). Electrical costs in a kitchen renovation: rewiring or upgrading the kitchen circuit (adding new sockets, cooker circuit, extraction circuit, lighting circuits, fridge circuit): £1,200-£2,500 for a standard kitchen electrical upgrade. All kitchen electrical work is Part P notifiable — use a Part P registered electrician. Adding new downlights and under-cabinet LED lighting: £400-£900. Underfloor heating (electric mat under tiles or screed): £800-£2,000 supply and install for a standard kitchen floor area, depending on the system type and existing floor build-up.

If you have a constrained budget, this is the priority order for a London kitchen renovation: (1) Layout and flow: getting the spatial arrangement right is free in terms of design but expensive to change after install — invest in good design time before ordering. (2) Worktops: visible, tactile, and the first thing people notice and touch — quartz gives the most premium impression for cost. Don't buy cheap worktops with expensive units. (3) Appliances: choose mid-range or higher for the cooking and extraction equipment (oven, hob, extractor) — this is used daily and quality matters. (4) Flooring: kitchen flooring must be durable and waterproof — large-format porcelain or quality engineered oak are good investments. (5) Units: the cabinet boxes themselves (once doors are on) contribute less to perceived quality than the worktops, handles, and doors. Spending less on the carcase and more on the worktop and doors is rational. (6) Taps and sinks: quality taps are used 20+ times a day — it is worth spending £200-£400 on a quality tap rather than £40-£60.