- Postcode districts
- PL25
- Nearby
- Bodmin, Truro and Newquay
- Guide price
- £4,600–£9,200
- Typical time on site
- 4–8 working days
- Water
- Soft across most of Cornwall
- Survey
- Free, at your home
What does an en-suite cost in St Austell?
As a guide, budget £4,600 to £9,200 including VAT for an en-suite in St Austell; your written quote will pin it down. 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 St Austell including VAT. Your itemised written quote after the free survey is the price that counts.
Working in St Austell
We work right across St Austell — PL25 — and in neighbouring Bodmin and Truro.
St Austell gets the same process as anywhere else: a free survey at your home and a written, itemised quote. If your St Austell home has one bathroom and a good-sized main bedroom, an en-suite is often the change that eases the morning queue. For an en-suite in St Austell, the first question at the survey is always where the waste can reach the soil stack.
Supplies across most of Cornwall are soft. If that holds for your street in St Austell, limescale on shower glass and heads builds up slowly and a squeegee after use is usually enough. Hardness varies street by street, so check the figure for your postcode with your water supplier.
What the job includes
- Stud walls with acoustic insulation and moisture-resistant board for a new en-suite
- An extractor fan ducted to outside, sized to the room and wired with an overrun timer or humidistat
- A shower tray or level-access former, an enclosure or walk-in panel, and a thermostatic valve
- 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.
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.
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.

