What does an en-suite cost in Oxfordshire?
Our guide range in Oxfordshire is £5,000–£10,000 including VAT. Prices in Oxfordshire run at about 12% above the UK guide, based on South East England labour rates.
Refit
- Existing en-suite, same layout
Upgrade
- Fitted furniture with storage
New en-suite
- Ventilation and electrics to regulations
Guide prices for Oxfordshire including VAT. Your itemised written quote after the free survey is the price that counts.
Which towns do we cover in Oxfordshire?
Most of Oxfordshire has hard water. If your supply in Oxford is the same, limescale on shower glass and heads is a real issue: easy-clean glass, rub-clean nozzles and a squeegee make a big difference. Hardness varies street by street, so check the figure for your postcode with your water supplier. We quote new en-suites in Oxford only after checking the drainage route on site, so the price reflects the work your house actually needs.
What the job includes
- A door that suits a tight space: inward, outward, sliding or a pocket door
- Tiling, silicone, testing and making good on the bedroom side of any new walls
- A shower tray or level-access former, an enclosure or walk-in panel, and a thermostatic valve
- A pumped waste or macerator where gravity drainage is not possible, and only where the house already has a WC on gravity drainage
- An extractor fan ducted to outside, sized to the room and wired with an overrun timer or humidistat
- IP-rated lighting, a shaver socket and the electrics done by a qualified electrician, tested and certified
Decisions to make first
Exposed or concealed valve
An exposed bar valve is quicker to fit and easy to service. A concealed valve looks cleaner but sits inside the wall, so plan how it will be reached for repairs.
Noise
Acoustic insulation in the stud walls and a quiet fan make a real difference when one of you showers early while the other is still asleep.
Night lighting
A mirror light or low-level LED strip on its own switch lets you use the en-suite at night without the full glare of the ceiling lights.
Shower size
A 900 mm square tray is a comfortable minimum for an enclosure. In a long, narrow room, a 1200 by 800 mm walk-in tray with one glass panel feels far more generous.
Rules that apply in England
Forming an en-suite inside an existing bedroom does not normally need planning permission, but it is usually building-regulations work because it adds drainage, ventilation and electrics. All wiring must meet BS 7671, with 30 mA RCD protection on every circuit in the room. A macerator or pumped WC is acceptable only where the home also has a WC on gravity drainage. In a listed building, a new soil or vent pipe through a wall needs listed building consent.
In England, a new en-suite brings in Part H for the new connection to the soil stack, Approved Document F for ventilation, at 15 litres per second intermittent or 8 litres per second continuous extract, and Part P for the new circuits. The electrician should be registered with a competent person scheme, or the work notified to building control. On a refit, avoid replacing the fan with a less effective one.

