- Postcode districts
- SL7
- Nearby
- Maidenhead, High Wycombe and Slough
- 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 Marlow?
As a guide, budget £5,000 to £10,000 including VAT for an en-suite in Marlow; your written quote will pin it down. Labour costs in South East England put local prices at about 12% above the UK guide figure. 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 Marlow including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Marlow
In Marlow we cover SL7; we also cover Maidenhead, 4 miles away, and High Wycombe.
Marlow gets the same process as anywhere else: a free survey at your home and a written, itemised quote. We quote new en-suites in Marlow only after checking the drainage route on site, so the price reflects the work your house actually needs. If your Marlow home has one bathroom and a good-sized main bedroom, an en-suite is often the change that eases the morning queue.
Water across much of Buckinghamshire is hard. If your supply in Marlow 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 shower tray or level-access former, an enclosure or walk-in panel, and a thermostatic valve
- Stud walls with acoustic insulation and moisture-resistant board for a new en-suite
- A short-projection or wall-hung WC and a compact basin chosen to keep the floor clear
- A door that suits a tight space: inward, outward, sliding or a pocket door
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.
Refit or new en-suite
A refit keeps the existing drainage and walls. A new en-suite costs more because the walls, waste route, fan duct and electrics all start from nothing.
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.

