A bathroom renovation covers everything from replacing a suite and retiling to a full strip-out and refit including plumbing, electrics, waterproofing, and tiling. In the UK in 2026, costs range from £3,000 for a basic suite swap to £15,000+ for a high-spec complete refit — with most mid-range bathroom renovations landing between £5,000 and £10,000.
Whether you're a homeowner planning the project or a plumber quoting the work, understanding where the money goes is essential. This guide breaks down every cost element, gives you a realistic example quote, and flags the hidden expenses that catch people off guard.
1 Budget Ranges: What You Get at Each Price Point
Bathroom renovation costs in the UK vary significantly depending on what's being replaced and the quality of fittings. Here's what to expect at each level.
Basic Suite Swap — £3,000 to £5,000
A budget bathroom renovation typically involves replacing the toilet, basin, and bath or shower with new units in roughly the same positions. The existing tiling stays or gets a cosmetic refresh, and the plumbing connections are reused where possible. You might add a new shower screen, taps, and toilet seat, but the layout, flooring, and wall finishes remain largely unchanged. This is a practical refresh rather than a redesign — ideal when the room itself is sound but the fittings are tired or dated.
Mid-Range Refit — £5,000 to £10,000
This is where most bathroom renovations land. You're stripping out the old bathroom completely and fitting a new suite, full wall and floor tiling, updated plumbing, new electrics (extractor fan, spotlights, shaver socket), and waterproofing behind the shower or bath. The layout usually stays broadly the same, though you might swap a bath for a walk-in shower enclosure or reposition the towel radiator. Materials are decent quality — think a ceramic suite from a mid-range supplier, large-format porcelain tiles, chrome fittings, and a thermostatic shower valve.
High-End / Wet Room — £10,000 to £15,000+
A high-end bathroom renovation involves a complete strip-out, potential layout changes (moving waste pipes, repositioning the soil stack connection), premium fixtures, full tanking for a wet room, underfloor heating, designer tiling, wall-hung sanitaryware, and recessed storage. If you're converting to a wet room with a linear drain, adding electric underfloor heating, or fitting a freestanding bath with bespoke plumbing, expect to push past £12,000 comfortably. Structural work to the floor for wet room falls, building regulations sign-off for drainage changes, and extended timelines all add cost.
2 Cost Breakdown by Element
Understanding where the money goes helps you prioritise and identify where to save — or where cutting corners will cause expensive problems down the line. Here's a typical breakdown for a mid-range bathroom renovation.
- Bathroom suite (toilet, basin, bath or shower): £500–£2,500. A basic close-coupled toilet and pedestal basin starts around £150–£300. A shower enclosure with tray and thermostatic valve adds £300–£800. A freestanding bath or wall-hung vanity unit pushes the budget higher. This is one area where quality varies enormously for relatively small price differences.
- Tiling (walls + floor): £800–£2,000. Full-height wall tiling behind the shower and half-height elsewhere is standard. Floor tiles with appropriate slip resistance add to the total. Material choice matters — ceramic tiles at £20/m² versus porcelain at £40–£60/m² makes a significant difference across 15–20m² of coverage.
- Plumbing: £1,000–£2,500. Connecting the toilet, basin, bath or shower, and towel radiator. If you're moving waste positions, extending hot and cold feeds, or upgrading from a gravity system to a pressurised one, costs climb. Any work near the soil stack needs careful routing.
- Electrics (extractor, lights, shaver socket): £300–£800. A bathroom extractor fan (ideally humidity-sensing), IP-rated downlights, and a shaver socket are the basics. Adding a heated mirror, electric underfloor heating thermostat, or relocating the consumer unit connection pushes towards the upper end. All bathroom electrics must comply with Part P regulations and BS 7671 zone requirements.
- Waterproofing / tanking: £200–£500. Tanking behind the shower area and around the bath is essential to prevent moisture damage to the substrate. A full wet room requires complete floor-to-ceiling tanking with a bonded membrane and sealed drain connection, which sits at the higher end of this range.
- Flooring: £200–£600. If you're not tiling the floor, luxury vinyl tile (LVT) is the most popular alternative in bathrooms — waterproof, warm underfoot, and available in convincing stone and wood effects. Supply and fit for a typical bathroom runs £250–£450.
- Plastering: £300–£600. Walls usually need patching and skimming after the old suite and tiles come out. A full skim on all walls (including making good around new pipe routes) typically costs £350–£500 for a standard bathroom.
- Waste disposal: £200–£400. An old bathroom generates a surprising amount of waste — the suite, tiles, plasterboard, packaging, and old pipework. Grab bags or a mini skip are almost always needed, and old sanitaryware is heavy.
3 Labour Costs
Labour typically accounts for 30–40% of a bathroom renovation, which is a higher proportion than kitchens because bathrooms involve more trades working in a smaller space. For a straightforward strip-out and refit, expect to pay £1,500 to £3,500 in fitting labour over 5 to 10 days depending on complexity. This covers the bathroom fitter or lead plumber, plus the tiler, electrician, and plasterer as separate trades or subcontracted.
Bathroom fitters generally charge £200–£350 per day in most of the UK, rising to £300–£450 in London and the South East. Tilers working in bathrooms are often slower than on open floors because of the cuts, corners, niches, and waterproofing involved — budget 2–3 days for tiling alone. If you're a tradesperson pricing bathroom work, our guide on how to quote a plumbing job covers how to build accurate, profitable quotes for this type of work.
4 Factors That Affect the Final Cost
Two bathrooms with the same footprint can cost dramatically different amounts. The main variables are:
- Bathroom size: A small en-suite at 3m² needs fewer tiles, less plumbing, and less labour than a family bathroom at 7m². Material quantities scale directly with area, and larger rooms give the fitter more working space (which speeds things up).
- Moving plumbing: Keeping waste pipes and water feeds in the same positions is significantly cheaper than moving them. Repositioning a toilet even half a metre can mean rerouting the soil pipe connection, which may require lifting floorboards and careful fall calculations.
- Wet room vs standard shower: A wet room requires complete tanking of the floor and walls, a gradient formed in the floor screed, and a flush drain — adding £1,500–£3,000 compared to a standard shower tray. The structural implications of waterproofing a timber floor to wet room standards also need specialist attention.
- Underfloor heating: Electric underfloor heating adds £400–£800 for supply and fit in a typical bathroom. It's a popular upgrade because bathrooms have cold tile floors and the mats are straightforward to install under tiles. The running cost is minimal given the small area.
- Quality of finishes: The gap between budget and premium fittings is enormous. A complete ceramic suite from a trade supplier might cost £400; a wall-hung rimless toilet, countertop basin, and frameless shower enclosure from a premium brand could be £3,000+ for supply alone.
- Accessibility requirements: Level-access showers, grab rails, wider doorways, raised toilet heights, and non-slip flooring for accessible or age-friendly bathrooms add cost but are increasingly requested. A Doc M pack (accessible bathroom suite) costs £300–£600 for supply, plus additional labour for the wider grab rail fixings and level-access threshold work.
5 Hidden Costs People Miss
Every bathroom renovation has costs that don't appear in the initial quote. Being aware of them upfront avoids nasty surprises mid-project.
- Asbestos in old tiles: Vinyl floor tiles, adhesive, and even some ceramic tile backings in pre-1990s properties may contain asbestos. Testing costs £30–£50 per sample; if found, professional removal starts at £500+ and the project stalls until it's dealt with. Always test before stripping out an old bathroom in an older property.
- Rotten joists under the bath: Years of minor leaks around old bath seals and shower trays can rot the timber floor joists underneath without any visible sign. Once the old bath comes out, damaged joists need sistering or replacing before the new suite goes in — adding £300–£800 depending on the extent.
- Upgrading waste pipes: Older properties may have lead or narrow-bore waste pipes that don't meet current standards or can't handle a modern pressurised shower. Replacing a section of soil pipe or upgrading from 32mm to 40mm waste runs adds £200–£500 in materials and labour, but it prevents drainage problems later.
- Ventilation upgrades: Building regulations require adequate ventilation in bathrooms. If there's no existing extractor fan or window, you'll need to install ducting through an external wall or to a soffit — adding £150–£400 to the electrics bill.
- Contingency (10%): Always add 10% to your total budget. Something unexpected will surface — damp behind tiles, a corroded pipe joint, or a tile quantity shortfall. Having contingency built in keeps the project moving instead of stalling for budget approval.
Tip: When quoting a bathroom renovation as a tradesperson, include a contingency line in the quote. Customers appreciate the transparency, and it protects your margin when hidden issues arise. Learning how to quote a building job properly ensures your breakdown is detailed, accurate, and covers these risks.
Example Quote Breakdown
Mid-Range Bathroom Refit
Standard family bathroom — full strip-out and refit
| Item | Cost |
|---|---|
| Bathroom suite (shower enclosure, toilet, basin) | £1,200 |
| Tiling (walls + floor) | £1,400 |
| Plumbing | £1,800 |
| Electrics (extractor, lights, shaver socket) | £550 |
| Waterproofing / tanking | £300 |
| Plastering | £400 |
| Flooring (vinyl) | £250 |
| Waste disposal | £250 |
| Labour (8 days) | £2,400 |
| Contingency (10%) | £855 |
| Total (ex. VAT) | £9,405 |
This example reflects real-world 2026 pricing for a typical mid-range bathroom in a semi-detached house, using decent-quality materials and professional tradespeople. If you're a builder or plumber, protecting your profit margins on jobs like this requires an accurate, itemised breakdown rather than a single lump-sum figure.
How Long Does a Bathroom Renovation Take?
A typical mid-range bathroom renovation takes 5 to 10 working days from strip-out to completion. Here's a rough timeline:
- Day 1–2: Strip-out old suite and tiles, waste removal, first-fix plumbing and electrics, any plastering or wall preparation.
- Day 3–5: Waterproofing/tanking, floor preparation, wall tiling, floor tiling. Second-fix plumbing connections.
- Day 6–8: Fit new suite (toilet, basin, shower), second-fix electrics (extractor, lights, shaver socket), grouting, silicone sealing, and snagging.
Jobs that involve wet room conversions, structural floor modifications, or underfloor heating can stretch to 10–14 days. A simple like-for-like suite swap with minimal retiling can be done in 3–5 days by an experienced bathroom fitter.
Tools like VoxTrade help tradespeople create itemised bathroom renovation quotes on-site in minutes — walk through the bathroom, describe the work out loud, and the app generates a professional, priced document you can send to the customer before you leave. No more evening spreadsheet sessions.
Wrapping Up
A bathroom renovation in the UK costs between £3,000 and £15,000+ depending on the scope, materials, and whether layout changes are involved. The most common mid-range refit lands at £5,000–£10,000. Labour and plumbing are the biggest single costs, followed by tiling and the suite itself. Always add 10% contingency, budget for waste disposal, and check for asbestos in older properties before stripping anything out.
For tradespeople pricing this type of work, accuracy is everything. Underquote and you lose money; overquote and you lose the job. A detailed, itemised breakdown — like the example table above — builds customer confidence and protects your profit margins.
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