One of the first questions we hear from London homeowners is simple: how much will a new bathroom actually cost? The honest answer is that it depends on the size of the room, the specification you choose and how much needs to change behind the walls. This 2026 guide gives you realistic London price ranges and explains exactly what drives the final figure, so you can budget with confidence.
What affects the cost of a bathroom renovation?
Two bathrooms of the same size can vary hugely in price. The biggest factors are:
- Size and layout. A compact cloakroom costs far less than a large family bathroom, and moving the toilet, bath or basin adds plumbing work.
- Specification. Budget high-street suites and tiles sit at one end; premium brassware, large-format porcelain and underfloor heating at the other.
- Structural changes. Removing a wall, converting to a wet room or re-routing pipes and electrics all add labour.
- Condition of the room. Hidden issues such as damp, rot or old pipework can add cost once the old bathroom is stripped out.
Typical bathroom renovation costs in London (2026)
The ranges below reflect typical London market prices for a complete supply-and-fit renovation. They are a guide only – every project is different, and the only accurate figure is a written quote for your specific room.
| Bathroom type | Typical London cost (2026) |
|---|---|
| Cloakroom / small WC | £2,500 – £4,500 |
| Standard family bathroom | £5,000 – £9,000 |
| Large or premium bathroom | £10,000 – £18,000+ |
| Wet room | £6,000 – £12,000 |
Where does the money go?
On a typical mid-range London bathroom, the budget usually splits roughly like this:
- Labour – stripping out, plumbing, tiling, electrics and installation is often 40-55% of the total.
- Sanitaryware and brassware – bath, toilet, basin, shower and taps.
- Tiles and flooring – see our wall & floor tiling service for the finish options.
- Plumbing and electrical work – any pipe re-routing, new shower circuits or extractor fans. Notifiable work is carried out by certified trades. See plumbing & electrical.
How long does a bathroom renovation take?
A standard family bathroom in a London home typically takes 1.5 to 3 weeks from strip-out to finished. Larger rooms, wet rooms and jobs involving layout changes take longer. A clear schedule agreed up front keeps disruption to a minimum.
How to keep costs sensible
- Keep the existing layout where possible – moving plumbing is one of the biggest hidden costs.
- Mix a statement tile with a cheaper plain tile rather than tiling everything in the premium option.
- Get a fixed, itemised written quote so there are no surprises mid-project.
- Use one team for the whole job – plumbing, tiling and electrics – instead of coordinating separate trades.
Get an accurate bathroom quote in London
IMD Building Services provides full bathroom design, supply and installation across London. Book a free, no-obligation survey and receive a fixed, itemised written quote for your exact project.