New Bathroom Cost Calculator
Work out what your bathroom project would really cost, whether you are planning a full gut-and-replace renovation, a fixture refresh, or a quick cosmetic update. Tell us what you are after and we will give you an honest estimate straight away - no email needed.
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How this calculator works
Our bathroom cost calculator builds up a realistic estimate based on the scope of your project, the size of the room, and the specification level you are aiming for. You pick whether you are doing a full renovation, a fixture refresh, or a cosmetic update, and we calculate costs across every trade involved: plumbing, tiling, electrics, plastering, and decoration.
The tool breaks down your estimate into materials and labour, so you can see where the money goes. It also factors in your region, since labour rates in London and the South East are typically 20-30% higher than in the North or Wales. If you add extras like underfloor heating, a heated towel rail, or a new extractor fan, those are itemised separately.
These figures are based on typical UK trade rates and material costs for 2026 and are meant to help you budget realistically. Every bathroom is different, so actual quotes may vary depending on the condition of existing plumbing, access difficulties, and the specific products you choose. We recommend getting at least three quotes from qualified tradespeople.
Common questions
How much does a new bathroom cost in the UK in 2026?
A full bathroom renovation in the UK costs between £2,500 and £15,000 in 2026, depending on the room size, specification level, and your location. A mid-range bathroom with new suite, tiling, and fixtures typically comes in at £4,500 to £8,000.
How long does a bathroom renovation take?
A full bathroom renovation typically takes 7 to 14 days for a standard-sized room. A simpler refresh (keeping the layout but updating fixtures) takes 4 to 7 days. Cosmetic updates like painting, new taps, and accessories can often be done in 1 to 3 days.
Do I need a qualified electrician for bathroom work?
Yes. Any new electrical work in a bathroom must comply with Part P of the Building Regulations. This covers new lighting, extractor fans, heated towel rails, and underfloor heating. A qualified electrician will self-certify the work and issue a compliance certificate. Attempting DIY electrical work in a bathroom is both dangerous and illegal.
What is the cheapest type of bathroom to fit?
A cloakroom or downstairs WC is the cheapest bathroom to fit, costing from around £1,000 to £2,000 at budget specification. For a full bathroom, a cosmetic refresh (painting, new taps, and accessories without moving plumbing) is the most affordable option, typically costing 25% of a full renovation.