- Postcode districts
- KA1
- Nearby
- Irvine, Kilwinning and Ayr
- Guide price
- £6,200–£12,500
- Typical time on site
- 6–12 working days
- Water
- Soft across most of Ayrshire
- Survey
- Free, at your home
What does a loft bathroom cost in Kilmarnock?
As a guide, budget £6,200 to £12,500 including VAT for a loft bathroom in Kilmarnock; 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 Kilmarnock including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Kilmarnock
As well as Kilmarnock itself (KA1), we survey in Irvine, Kilwinning and Ayr.
In Kilmarnock, as anywhere, the age of the house decides a lot: pipe sizes, floor construction and where the soil stack runs. If your Kilmarnock home has a gravity-drained WC on another floor, a macerator in the loft may open up more layout options. If your Kilmarnock loft conversion has a bedroom but no bathroom, the survey starts with where the soil stack runs and how much headroom you have.
Supplies across most of Ayrshire are soft. If that holds for your street in Kilmarnock, 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
- An extractor fan ducted through the roof or a gable wall, with the duct insulated through cold spaces
- Electrics by a qualified electrician, tested and certified, then tiling, testing and handover
- A survey of the headroom across the room, with the usable height marked at each fitting position
- 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
Gravity or pumped waste
Gravity is silent and maintenance-free. A pumped waste or macerator lets fittings sit away from the stack, provided the house has a WC on gravity drainage elsewhere.
Roof window
A roof window over the bath or shower brings daylight and fresh air, but plan the blind for privacy and expect condensation on cold glass.
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.

