- Postcode districts
- PA5
- Nearby
- Paisley, Barrhead and Erskine
- Guide price
- £4,300–£8,600
- Typical time on site
- 4–8 working days
- Water
- Soft across most of Renfrewshire and Inverclyde
- Survey
- Free, at your home
What does an en-suite cost in Johnstone?
As a guide, budget £4,300 to £8,600 including VAT for an en-suite in Johnstone; your written quote will pin it down. Prices in Scotland run at about 4% below 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
- Shower, basin and WC replaced
Upgrade
- Full-height porcelain tiling
New en-suite
- Formed inside an existing bedroom
Guide prices for Johnstone including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Johnstone
We work right across Johnstone — PA5 — and in neighbouring Paisley and Barrhead.
Johnstone gets the same process as anywhere else: a free survey at your home and a written, itemised quote. If the en-suite in your Johnstone home was squeezed in by a previous owner, a refit is a chance to fix the door swing and the tray size. If your Johnstone home has one bathroom and a good-sized main bedroom, an en-suite is often the change that eases the morning queue.
Supplies across most of Renfrewshire and Inverclyde are soft. If that holds for your street in Johnstone, 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
- A door that suits a tight space: inward, outward, sliding or a pocket door
- Stud walls with acoustic insulation and moisture-resistant board for a new en-suite
- IP-rated lighting, a shaver socket and the electrics done by a qualified electrician, tested and certified
- A shower tray or level-access former, an enclosure or walk-in panel, and a thermostatic valve
Decisions to make first
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.
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 Scotland
In Scotland, forming a new en-suite may need a building warrant because it creates a new bathroom and alters drainage; refitting an existing one rarely does. The Technical Handbook uses the same 15 litres per second extract rate for a bathroom, and the electrics should be tested and certified to BS 7671.

