Small bathroom Cost Calculator
A compact bathroom is one of the best-value rooms to update. In 2026, a small bathroom renovation (around a 2x2m room) costs £3,000-£7,000 in the UK. A budget like-for-like refit is £3,000-£4,500, a mid-range refit £4,500-£6,000, and a premium finish…
Open the calculator →Price small bathroom in 30 seconds
2 steps, using the figures from our cost guide.
How this calculator works
Every figure in this calculator is the one published in the cost table on our small bathroom guide. Pick the option that matches your job and the calculator returns that published range, adjusted for your region - it does not model anything the guide does not already say.
That is deliberate. A calculator whose rates drift from the page it sits under is worse than no calculator, because two numbers on the same site disagree.
What it cannot know: access, the condition of what is already there, and anything structural. Those are what separate three real quotes from each other.
Published small bathroom costs (2026)
| Option | Typical 2026 cost | Notes |
|---|---|---|
| Design & planning | £300–£1,200 | |
| Bathroom plumbing | £900–£2,200 | |
| New suite supplied & fitted | £1,800–£8,500 | |
| Small bathroom renovation | £3,000–£7,000 | |
| Accessible bathroom adaptation | £4,500–£7,500 | |
| Wet room conversion | £6,000–£12,000 |
These are the figures from our small bathroom cost guide.
What’s included in a small bathroom renovation
The £3,000–£7,000 range on this page is a full refit of a compact room, roughly 2x2m, not just a new suite dropped in. A budget like-for-like refit at £3,000–£4,500 keeps the layout, swaps the suite and re-tiles; a mid-range job at £4,500–£6,000 buys better fittings and full tiling; a premium finish goes higher again. The bathroom renovation cost guide shows how those tiers break down.
A typical quote covers stripping out the old room, first-fix and second-fix plumbing, fitting the suite, tiling, and making good - plastering, a little electrical work for lights or an extractor, and paint. The line that most often surprises people is the labour split: on a small bathroom, labour and tiling usually cost more than the suite itself, which is why a cheap suite rarely makes a cheap bathroom. Our bathroom plumbing cost guide covers that part in more depth.
What pushes a small bathroom past the range is changing it structurally: moving the soil pipe to relocate the toilet, converting to a wet room with tanking and a proper fall, or dealing with rot or a failed floor once the old suite is out. Get those unknowns checked before you sign, and compare quotes on the same spec. The bathrooms hub is the place to start once you know what you want.
Small bathroom calculator — FAQs
It uses the same published figures as the cost guide it sits under, adjusted for your region. It is a budgeting estimate, not a quote - only a site visit produces one of those.
A full small-bathroom refit usually covers stripping out the old room, the plumbing, fitting the new suite, tiling and making good - plastering, minor electrics for lights or an extractor, and paint. On a compact room the labour and tiling often cost more than the suite, so the fitter and the finish matter as much as the fittings.
Most small bathrooms take about one to two weeks. A straightforward like-for-like refit can be done in a week; moving plumbing, full re-tiling or a wet-room conversion pushes it towards two, partly because tanking and tile adhesive need drying time between stages.
Yes. Relocating the toilet means moving the soil pipe, which is the single change most likely to lift a small bathroom above the £7,000 mark. Keeping the suite roughly where it is - and the pipework with it - is the biggest saving available on a compact refit.
Related cost guides
- Small bathroom cost guide — The full price guide
- All bathrooms services — Browse the hub
- All BestBuilders services — Every trade we cover
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