A bathroom installation replaces your old suite with new sanitaryware, a bath or shower, tiling and fittings, including the plumbing, electrics, ventilation and waterproofing needed for a complete, watertight room.
From a first conversation about a new bathroom to the day the site is cleared, homeowners in Barnes deal with us directly. We come out to measure up at no cost, explain the choices in plain terms and send a written quote. For context, comparable work in London usually falls within £6,500–£15,500 including VAT, and it is available across SW13, SW14, SW15 and TW9.
- Guide price
- £6,500–£15,500 inc VAT
- Time on site
- 1–2 weeks per bathroom
- Postcodes
- SW13, SW14, SW15, TW9 and W4
- Planning rules
- England
- Local area
- Greater London
- Survey
- Free, with a written quote
How much does a new bathroom cost in Barnes?
The table below shows guide prices for a new bathroom in Barnes. They are based on rates in London, which run about 30% above the national guide, giving an overall range of £6,500–£15,500. All figures include VAT and are firmed up after a free site survey.
| Type of job | What it usually involves | Guide in Barnes |
|---|---|---|
| Shower room or en-suite | A compact room with a shower, basin and toilet, keeping the existing layout. | £5,200–£10,500 |
| Family bathroom | A full suite with bath and shower, new tiling, lighting and an extractor fan. | £6,500–£15,500 |
| Premium bathroom or wet room | Standalone bath, wet room or walk-in shower, underfloor heating and large-format tiles. | £15,500–£26,000 |
Your price depends mostly on:
- Suite, shower and tap specification
- Moving the toilet, bath or shower to a new position
- Wet room waterproofing and underfloor heating
- Condition of the floor, walls and existing pipework
What’s included?
- Measured survey and layout planning for your room
- Removal and disposal of the old suite and tiles
- Electrics, lighting and extractor fan by qualified trades, with certificates
- Waterproofing behind showers and in wet areas
- Wall and floor tiling to your chosen design
- Heated towel rail, silicone sealing and a final clean
What are homes like around Barnes?
London's housing is dominated by Victorian and Edwardian terraces, often in yellow London stock brick, with Georgian terraces in central districts and mansion blocks across many inner areas. Outer boroughs have large belts of interwar semis, and there are extensive post-war council estates. Many houses have been split into flats, and conservation areas are widespread.
Terraces suit side-return extensions and rear dormer loft conversions; interwar semis commonly take hip-to-gable lofts. Shared party walls, restricted parking and conservation rules often shape the plans and the programme.
Knowing the typical building types in London helps, but a survey of your own home in Barnes is what decides the right approach to a new bathroom.
Do you need permission in Barnes?
For anyone in Barnes, the relevant framework is England's. The summary below is general, so we always contact the council about your address before putting a price in writing.
Internal work such as a new kitchen, bathroom, flooring, plastering or decorating does not need planning permission in England, unless the house is listed, when listed building consent may be needed even for internal changes.
Some internal work is covered by Building Regulations: new electrical circuits and work in bathrooms (Part P), new drainage, structural changes, extractor ventilation and any new window. Notifiable work is certified by a registered installer or by building control.
Rules change and every property is different, so we check the planning history and constraints for your address before we quote.
From survey to handover
A visit to your home
We begin by looking at the job in person. During the free survey we discuss options, materials and budget for a new bathroom, and photograph or measure anything the quote needs to reflect.
Your fixed price
The quote arrives in writing, not over the phone. It covers the full scope, the finishes you've chosen, any exclusions and the payment schedule, with a fixed price tied to that specification.
Getting ready
Next comes planning the work itself. We set a start date that suits you, line up the right trades, and make sure any approvals for a new bathroom are in place before the first day on site.
On site to finish
During the work we protect the areas around it and tidy up at the end of each day. Once complete, we check the finish, remove our materials and hand over paperwork such as building control sign-off where it applies.
Why homeowners choose us
Questions about a new bathroom in Barnes
Can you combine a new bathroom with other work?
Yes. Because we manage several trades under one contract, we can plan a new bathroom alongside other work on your Barnes home, such as new windows with rendering, or a kitchen refit with an extension. Combining jobs can reduce repeat set-up such as scaffolding, skips and access, and every element is listed and priced in the same written quote.
Is the price fixed?
Yes, for the specification we agree. Your written quote sets out exactly what is included at a fixed price. It only changes if you ask for something different, or if a problem the survey could not reasonably reveal later needs extra work. In either case we explain the change and confirm it in writing before going ahead.
Do I need a new boiler for a new shower?
You do not always need a new boiler for a new shower, but your hot water system decides what kind of shower will work well. Combi boilers suit mixer showers directly from the mains. Tank-fed systems may need a pump for good pressure, and electric showers heat their own water. We check your boiler, cylinder and water pressure during the survey and recommend a shower to match.
What ventilation does a bathroom need?
A bathroom needs mechanical ventilation, usually an extractor fan, to remove steam and help prevent condensation and mould. Building regulations set minimum extraction rates for new or refitted bathrooms. A fan linked to the light with an overrun timer, or one with a humidity sensor, works well. Ducting should vent outside by the shortest practical route. We include a suitable fan in every bathroom quote.
How much does a new bathroom cost?
A typical family bathroom costs £6,500–£15,500 supplied and fitted, including tiling, a new suite, shower, lighting and an extractor fan. Shower rooms and simple en-suites cost a little less, while wet rooms, standalone baths and large-format tiles cost more. Moving the toilet or replacing rotten floorboards adds to the total. We confirm a fixed price for the agreed specification after the survey.
Near Barnes
Whether you're in the centre of Barnes or on its outskirts, SW13, SW14, SW15 and TW9 addresses are covered. We extend the same service, and the same fixed-price approach, to Chiswick, Putney and Fulham.