Bathroom budget planner
Bathroom Renovation Cost Calculator UK
Get an instant indicative range for your UK bathroom renovation. Adjust the size, suite quality, scope and your region to see a budget estimate based on current UK supply and installation rates.
Typical fitted budget
£4,000–£18,000+
Biggest cost drivers
Suite quality, tiling, plumbing changes
Best use
Budgeting before bathroom quotes
Mid-range example
A realistic bathroom finish for the kind of projects this calculator is meant to budget.
Bathroom cost snapshot
Tiling, plumbing and wet-room scope move the total fast
Use the calculator first, then compare the outcome against the bathroom cost guide and shower-vs-bath comparison before you request quotes.
Remember
Moving wastes or reworking waterproofing usually has a bigger budget effect than homeowners expect.
Good next step
Compare walk-in shower vs bath if layout decisions are still open.
Estimated Bathroom Cost
Indicative range. Not a quote. Includes a 10% contingency.
Cost Breakdown
| Suite & Sanitaryware | — |
| Labour & Fitting | — |
| Tiling | — |
| Plumbing & Electrical | — |
| Contingency (10%) | — |
| Estimated Total | — |
How We Estimate
- • Prices reflect UK average supply and installation costs through qualified tradespeople.
- • Wet room estimates include tanked flooring, drainage modifications and full waterproofing.
- • Region multipliers apply to labour rates only.
- • This tool does not constitute a formal quote. Always obtain at least 3 written quotes.
- • Last updated: Q2 2026.
Before you rely on the number
What the bathroom calculator includes, and what you still need to check
The bathroom estimate combines sanitaryware, fitting labour, tiling assumptions, optional plumbing changes, optional electrical work and a regional labour multiplier. It is most useful when you already know whether you are refreshing the room, replacing the full bathroom, or converting the space into a wet room.
A simple refresh usually keeps the toilet, basin, bath or shower in similar positions. A full renovation often adds tiling, new flooring, plaster repairs, ventilation and new fittings. A wet room normally needs more waterproofing, drainage work and careful floor falls, which is why that option sits in a higher range.
Use the result as a pre-quote budget. If two quotes are far outside the range, ask what assumptions differ: labour days, tile coverage, waste removal, electrical certification, access, parking, or the quality of taps, screens, trays and furniture.
Quote checks that stop budget surprises
- Confirm whether VAT is included or added later.
- Ask whether old suite removal and disposal are included.
- Check if walls, floors and waterproofing are allowed for before tiling.
- Separate sanitaryware supply costs from fitting labour so upgrades are clear.
- Ask whether electrical work includes certification and extractor upgrades.
- Keep a contingency for rotten floors, hidden leaks or uneven walls.
For layout decisions, compare this result with the walk-in shower guide and the bath-versus-shower comparison. Those pages help you decide whether the extra spend improves day-to-day use or simply increases the specification.
Quick answers for UK homeowners
How much does a bathroom renovation cost in the UK?
A bathroom renovation can vary widely depending on room size, tiling, plumbing moves, suite quality, waterproofing and labour in your region.
What costs are easy to miss?
Common hidden costs include plumbing alterations, electrical work, ventilation, subfloor repairs, tanking and disposing of the old bathroom.
Can I use this before getting quotes?
Yes. Use the calculator to set a sensible budget range, then compare it with detailed quotes from local trades.
Related planning pages
This calculator follows the selected country
Use the location controls above. Every estimate uses only the selected country's currency, units and local cost assumptions. Browse calculators or review location coverage.