- Postcode districts
- G82
- Nearby
- Vale of Leven, Erskine and Clydebank
- Guide price
- £4,300–£8,600
- Typical time on site
- 4–8 working days
- Water
- Soft across most of Greater Glasgow
- Survey
- Free, at your home
What does an en-suite cost in Dumbarton?
For Dumbarton, our guide range for an en-suite is £4,300 to £8,600 including VAT. We adjust the national guide for Scotland, where prices are typically about 4% below the UK average. 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 Dumbarton including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Dumbarton
We work right across Dumbarton — G82 — and in neighbouring Vale of Leven and Erskine.
Being a smaller town does not change how we work in Dumbarton: free survey, written quote, one team. If you live in a Dumbarton flat, check your title deeds and any deed of conditions before planning a new en-suite, as agreement from the other owners or the factor is often needed for new drainage and vents. For an en-suite in Dumbarton, the first question at the survey is always where the waste can reach the soil stack.
Supplies across most of Greater Glasgow are soft. If that holds for your street in Dumbarton, 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 short-projection or wall-hung WC and a compact basin chosen to keep the floor clear
- Tiling, silicone, testing and making good on the bedroom side of any new walls
- Stud walls with acoustic insulation and moisture-resistant board for a new en-suite
- A pumped waste or macerator where gravity drainage is not possible, and only where the house already has a WC on gravity drainage
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.
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.
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.

