- Postcode districts
- PA5
- Nearby
- Paisley, Barrhead and Erskine
- Guide price
- £6,200–£12,500
- Typical time on site
- 6–12 working days
- Water
- Soft across most of Renfrewshire and Inverclyde
- Survey
- Free, at your home
What does a loft bathroom cost in Johnstone?
As a guide, budget £6,200 to £12,500 including VAT for a loft bathroom in Johnstone; your written quote will pin it down. 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, extractor fan
Signature
- Walk-in shower under the ridge
New loft bathroom
- New drainage route and water supply
Guide prices for Johnstone including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Johnstone
In Johnstone we cover PA5; we also cover Paisley, 3.2 miles away, and Barrhead.
Johnstone gets the same process as anywhere else: a free survey at your home and a written, itemised quote. We plan loft bathrooms in Johnstone around the roof line, so the shower sits where you can stand and the eaves become storage. If your Johnstone house has a combi boiler, a loft shower can usually run on mains pressure without a pump.
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
- Fitted furniture made to the eaves, so the low space behind the slope becomes storage
- A survey of the headroom across the room, with the usable height marked at each fitting position
- A shower pump on a gravity system, an electric shower, or advice on moving to mains pressure, depending on your system
- A drainage route from the loft to the soil stack with enough fall, or a pumped waste or macerator where the rules allow it
Decisions to make first
Where the shower goes
Under the ridge or in a dormer, where the full height is. A walk-in shower with a single panel is usually easier to fit to a roof line than a framed enclosure.
Eaves storage
Low cupboards built into the slope behind the WC or basin take clutter out of the room and hide the pipework.
Rules that apply in Scotland
In Scotland, forming a new bathroom in the loft or altering the drainage may need a building warrant. The Technical Handbook uses 15 litres per second extract for a bathroom, and water fittings are covered by the Scottish Water Byelaws 2014.

