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 Windsor 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 the South East usually falls within £5,600–£13,500 including VAT, and it is available across SL4.
- Guide price
- £5,600–£13,500 inc VAT
- Time on site
- 1–2 weeks per bathroom
- Postcodes
- SL4
- Planning rules
- England
- Local area
- Windsor and Maidenhead
- Survey
- Free, with a written quote
Bathrooms prices in Windsor
These are guide costs, not quotes. For a new bathroom in Windsor the range is £5,600–£13,500, VAT included, reflecting prices in the South East that are about 12% above the national guide. Once we have visited for a free survey, you get a firm figure for the scope you approve.
| Type of job | What it usually involves | Guide in Windsor |
|---|---|---|
| Shower room or en-suite | A compact room with a shower, basin and toilet, keeping the existing layout. | £4,500–£9,000 |
| Family bathroom | A full suite with bath and shower, new tiling, lighting and an extractor fan. | £5,600–£13,500 |
| Premium bathroom or wet room | Standalone bath, wet room or walk-in shower, underfloor heating and large-format tiles. | £13,500–£22,500 |
The main things that change the figure:
- Room size and the amount of tiling
- Suite, shower and tap specification
- Wet room waterproofing and underfloor heating
- Condition of the floor, walls and existing pipework
Scope of the work
- Measured survey and layout planning for your room
- New supply and waste pipework, including concealed fittings
- Electrics, lighting and extractor fan by qualified trades, with certificates
- Wall and floor tiling to your chosen design
- Bath or shower, basin, toilet and taps fitted and tested
- Heated towel rail, silicone sealing and a final clean
Local housing and a new bathroom
Reading's Victorian terraces often show the town's patterned red and silver-grey brickwork, while Windsor, Maidenhead and Newbury mix Georgian, Victorian and Edwardian houses. Bracknell grew as a post-war new town with planned estates, Slough has a great deal of interwar and post-war housing, and newer developments sit on the edge of most towns.
Much of the Thames Valley is low-lying, so flood risk and clay ground near the river can influence foundations and drainage for extensions.
For a new bathroom in Windsor, this means checking things like wall construction, roof structure and existing services before we put a figure on paper.
Permissions for a new bathroom in Windsor
Windsor is in England, so the planning and building rules set out below are the ones that apply. We confirm the details with the council before we quote.
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.
How does the job run?
A visit to your home
It starts with a survey at the property, free of charge. We check condition, access and services, ask how you want the finished result to look, and answer any questions you have about a new bathroom.
Your fixed price
After the survey we send a quote for a new bathroom that fixes the price for the scope we've agreed. If you want to change materials or scope, we revise it in writing before anything is booked.
Booking the work
Before anyone starts, we confirm the programme in writing, check whether consents are required and arrange deliveries. If a skip or scaffolding on the road needs a permit, we apply for it.
Build and hand over
The work is carried out to the agreed specification, with floors and furniture protected and the site kept tidy. At the end we clean up, walk through the finished job with you and hand over any certificates.
What you can expect from us
Bathrooms in Windsor: questions
Will I have to go without a bathroom?
If it is your only bathroom, you will usually be without a shower or bath for most of the fitting time. We aim to keep the toilet working overnight wherever possible, refitting it temporarily at the end of each day during strip-out and first fix. If you have a second bathroom or downstairs toilet, the disruption is much easier. We plan the sequence with you before starting.
How long will a new bathroom take?
On a typical home, allow 1–2 weeks per bathroom. Larger projects, older buildings and extra work found once things are opened up can extend that, while simpler jobs may be shorter. Your quote includes an estimate of time on site, and your point of contact keeps you updated on the programme as the work progresses.
Is a wet room right for my home?
A wet room is a fully waterproofed room with a shower area that drains through the floor, with no tray or step. It suits accessible bathrooms and modern designs, and makes cleaning easy. It needs a floor with enough depth for a gentle fall to the drain, and careful tanking of the whole room. Timber floors often need strengthening. We check suitability at the survey.
Do you cover Slough, Egham and Staines?
Yes. As well as Windsor, we cover Slough, Egham and Staines and the rest of Berkshire. Our coverage is UK-wide, so the process is the same wherever you are: a free site survey, a quote in writing that fixes the price for the agreed scope, and one point of contact while the work is planned and carried out.
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.
Nearby towns
If your address falls within SL4, we cover it. The same goes for neighbouring Slough, Egham and Staines, which we include alongside Windsor when arranging surveys and quotes.

