- Postcode districts
- SL9, UB9
- Nearby
- Chalfont St Peter, Uxbridge and Rickmansworth
- Guide price
- £5,000–£10,000
- Typical time on site
- 4–8 working days
- Water
- Hard across most of Buckinghamshire
- Survey
- Free, at your home
What does an en-suite cost in Gerrards Cross?
Our guide price for an en-suite in Gerrards Cross is £5,000–£10,000 including VAT. Prices in South East England run at about 12% above the national guide, mainly because of labour rates. The figure depends on the size of the room, whether anything moves, and the products you pick.
Refit
- Tiling, lighting and extractor fan
Upgrade
- Walk-in shower or larger tray
New en-suite
- New stud walls, drainage and pump if needed
Guide prices for Gerrards Cross including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Gerrards Cross
In Gerrards Cross we cover SL9 and UB9; we also cover Chalfont St Peter, 1.6 miles away, and Uxbridge.
Being a smaller town does not change how we work in Gerrards Cross: free survey, written quote, one team. We quote new en-suites in Gerrards Cross only after checking the drainage route on site, so the price reflects the work your house actually needs. For an en-suite in Gerrards Cross, the first question at the survey is always where the waste can reach the soil stack.
Supplies across most of Buckinghamshire are hard. If your supply in Gerrards Cross 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.
What the job includes
- A short-projection or wall-hung WC and a compact basin chosen to keep the floor clear
- An extractor fan ducted to outside, sized to the room and wired with an overrun timer or humidistat
- Stud walls with acoustic insulation and moisture-resistant board for a new en-suite
- A door that suits a tight space: inward, outward, sliding or a pocket door
Decisions to make first
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.
Door type
An outward-opening door frees floor space inside. A sliding pocket door saves space on both sides but needs a stud wall long enough to take the cassette.
Rules that apply in England
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.

