Bathroom Renovation Cost Calculator UK (2026)
Calculate UK bathroom renovation cost by size, specification, and scope of work. 2024 prices for suite, tiling, plumbing, and installation.
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UK Bathroom Renovation Cost Guide 2024
What should I know about Where the Money Goes?
Typical cost split for a £6,000 mid-range bathroom: suite & fittings (toilet, basin, bath/shower, taps): 25-35%. Tiling (materials + labour): 20-30%. Labour (plumber, tiler, electrician, fitter): 30-40%. Sundries (waste, sealants, fixings, lighting): 5-10%. Decorating: 5%. Labour is often the biggest single cost. A full bathroom refit involves multiple trades: plumber (suite, pipework). Tiler (walls, floor). Electrician (lights, extractor, shaver point — Part P notifiable work). Sometimes a plasterer for any wall repairs after old tiling or fittings are removed.
What do I need to know about Spec Level Comparison?
Budget (£2,000-£4,000 total): basic white suite (B&Q, Wickes, Screwfix). Standard ceramic tiles. Chrome taps. Adequate for rentals or quick refresh. Mid-range (£5,000-£9,000): branded suite (Roca, Ideal Standard, Victoria Plum). Better brassware (Bristan, Hansgrohe entry). Quality porcelain tiles. Thermostatic shower. Most homeowner renovations land here. High-end (£10,000-£18,000): premium suite (Villeroy & Boch, Duravit). Designer brassware (Hansgrohe, Grohe, Crosswater). Natural stone or large-format porcelain tiles, and often underfloor heating as standard, are typical of installations at this level.
What do I need to know about Scope Affects Everything?
Like-for-like swap (cheapest): replace suite in same positions. No plumbing relocation. Retile if wanted. Fastest, cheapest — minimal trades and disruption. Moderate refit: move some fittings (e.g. swap bath for shower). Some new pipework. Full retile. New extractor/lighting. Most common renovation type. Full refit (significant cost): new layout. Full re-plumb and re-wire. Move soil pipe (expensive — major plumbing). Complete strip-out to bare walls. Wet room conversion, the most complex option, requires tanking — a waterproof membrane across the whole floor and lower walls — plus careful attention to drainage falls.
What do I need to know about Timescale and Planning?
Typical timescales: cloakroom/WC: 3-5 days. Small bathroom swap: 5-7 days. Medium full refit: 1.5-2.5 weeks. Wet room conversion: 2-3 weeks (tanking needs curing time). Order of work: 1. Strip out old suite and tiles. 2. First fix (plumbing and electrical rough-in). 3. Plastering/boarding if needed. 4. Tanking (wet rooms) and waterproofing. 5. Tiling. 6. Second fix (install suite, taps, electrics). 7. Sealing, grouting, finishing. 8. Decorating. Living without a bathroom: plan for 1-3 weeks with alternative washing arrangements, or budget for a portable shower/toilet hire if it's your only bathroom.