Bathroom Renovation Cost Calculator UK | Free Estimate
Use this free bathroom renovation cost calculator to estimate what your project will actually cost. Enter your room dimensions, choose your fixtures and finishes, and get a personalised bathroom fitting cost breakdown in under two minutes. The tool covers everything from a small bathroom renovation to a full wet room conversion — labour, core materials, and all the trades involved.
Bathroom Renovation Costs in the UK: What the Numbers Look Like
The table below shows typical bathroom installation costs for labour and core building materials across Greater Manchester and most of the UK. VAT, bathroom items (baths, toilets, taps, shower trays), and tiles are excluded because product prices vary enormously depending on what you pick.
| Bathroom Size | Budget | Mid-Range | Premium |
|---|---|---|---|
| Small en-suite or cloakroom (2–3 m²) | £3,200–£4,500 | £4,500–£6,000 | £6,000–£8,500 |
| Standard bathroom (3–5 m²) | £4,200–£5,800 | £5,800–£8,000 | £8,000–£11,000 |
| Large family bathroom (5–8 m²) | £5,500–£7,500 | £7,500–£10,500 | £10,500–£15,000+ |
Budget means composite pipework, standard plasterboards, basic silicone, and plastic tile trims. Mid-range swaps in copper pipework, Mapei tanking kits, green moisture-resistant boards, and 6mm cement boards — a noticeable jump in durability. Premium brings branded tanking systems, colour-coded grout and silicone, stainless steel trims, and finishes like trimless 45-degree tile edges that take considerably longer to execute.
All three tiers include the full scope of bathroom fitting labour: strip-out, plumbing first and second fix, electrics, plastering, tanking, tiling, ceiling work, and snagging. Our detailed guide on how much a new bathroom costs breaks these down item by item. For tile quantities and grout weight, use our companion tile and grout calculator.
Planning a wet room cost calculator search? Wet rooms and shower room conversions sit at the higher end because of the gradient floor work, full-room tanking, and linear drainage the build requires. Our article on wet rooms vs shower rooms explains the differences.
Per-Component Installation Costs
Individual trade costs vary by property age and bathroom complexity, but these are the ranges we see across most projects in the North West:
| Component | Typical Cost Range | Notes |
|---|---|---|
| Bath installation | £250–£500 | Freestanding baths or cast iron can cost more due to weight and plumbing complexity |
| Toilet installation | £150–£300 | Wall-hung with concealed cistern sits at the upper end |
| Basin and vanity unit | £150–£350 | Wall-mounted basins are quicker; large vanity units need more joinery |
| Shower tray and enclosure | £300–£600 | Includes waste, trap, and screen fitting — stone resin trays last longest |
| Tiling (per m²) | £35–£65 | Larger format tiles (1200x600mm) take longer per piece; mosaics and herringbone cost more |
| Plumbing (first and second fix) | £600–£1,200 | Copper pipework pushes towards the upper end |
| Electrics (bathroom zones) | £300–£700 | Includes downlights, extractor fan, heated towel rail, and certification |
| Plastering and boarding | £400–£800 | Green moisture-resistant boards add roughly 15% over standard plasterboard |
| Tanking (wet zone waterproofing) | £200–£500 | Full-room tanking for wet rooms sits at the premium end |
| Underfloor heating | £300–£600 | Electric mat systems — most common for bathroom retrofits |
| Strip-out and waste removal | £200–£400 | Heavier materials (cast iron bath, old cement render) increase skip costs |
These figures cover labour and core materials only. Looking for a shower remodel cost calculator? The tool above includes shower tray fitting, enclosure installation, and all associated plumbing — just select your shower options and the estimate adjusts automatically. For a full room, the cost to renovate bathroom calculator at the top of this page combines every component into a single figure — effectively a bathroom price calculator that totals labour, materials, and every trade in one go.
Labour-Only vs Supply and Fit
Most quotes fall into two categories: labour-only and supply and fit.
Labour-only — you source the bath, toilet, basin, taps, shower tray, tiles, and accessories yourself. The fitters handle installation, plumbing and pipework, electrics, wall and floor tiling, and finishing. Our bathroom renovation cost estimator works on a labour-only basis. If you hold trade accounts or know where to find deals, this route usually works out cheaper.
With supply and fit, the contractor sources the bathroom items too. One point of contact, no chasing deliveries, no compatibility headaches. We hold trade accounts with Easy Bathrooms, Wickes, B&Q, Howdens, Topps Tiles, and dozens of other UK suppliers — those discounts get passed straight to the client.
On a labour-only basis, a standard bathroom (3–5 m²) runs £4,200–£8,000 depending on the tier. Bathroom items and tiles add another £1,500–£5,000, putting the total project somewhere between £5,700 and £13,000. Our article on avoiding costly renovation mistakes covers the budgeting pitfalls worth knowing about before you commit.
What This Calculator Covers
The new bathroom cost calculator estimates labour and core building materials — timber, plasterboards, pipework, tile adhesive, grout, silicone, tanking kits, cement boards, screws and fixings, drainage, dust sheets, and primers.
It does not include the bathroom items themselves: baths, shower trays, taps, fans, toilets, or tiles. A close-coupled toilet might be £150; a concealed wall-hung unit, £600+. That range is why product pricing stays out of the estimate. Think of it as a bathroom remodel cost estimator for the labour and building side of the project — the part most homeowners find hardest to predict.
Twenty variables feed the calculation: property type, building age, room dimensions, ceiling height, wall and floor finishes, fixtures, and extras like bathroom underfloor heating, en-suite layouts, or recessed shelving. Whether you need an ensuite cost calculator for a compact conversion or a bathroom renovation budget calculator for a large family bathroom, the same tool covers both.
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Book Free SurveyBuilders Squad Ltd covers Greater Manchester and Northern Cheshire for all bathroom renovation and kitchen fitting projects. Book a free site survey for a fixed-price quote, or use the bathroom cost calculator above to set your budget before getting in touch. Check our bathroom supply and fit page for details on the products we source, or explore tips for upgrading your bathroom on a budget.