- Postcode districts
- CF47, CF48
- Nearby
- Aberdare, Rhondda and Ebbw Vale
- Guide price
- £6,000–£12,000
- Typical time on site
- 6–12 working days
- Water
- Soft across most of Mid Glamorgan
- Survey
- Free, at your home
What does a loft bathroom cost in Merthyr Tydfil?
Guide price in Merthyr Tydfil: £6,000–£12,000 including VAT, depending on the room and what you choose. Labour costs in Wales put local prices at about 7% below the UK guide figure. The figure depends on the size of the room, whether anything moves, and the products you pick.
Refit
- Existing loft shower room
Signature
- Fitted furniture to the eaves
New loft bathroom
- Ventilation and electrics to regulations
Guide prices for Merthyr Tydfil including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Merthyr Tydfil
As well as Merthyr Tydfil itself (CF47 and CF48), we survey in Aberdare, Rhondda and Ebbw Vale.
In Merthyr Tydfil, as anywhere, the age of the house decides a lot: pipe sizes, floor construction and where the soil stack runs. If your Merthyr Tydfil home has a gravity-drained WC on another floor, a macerator in the loft may open up more layout options. If your Merthyr Tydfil house has a combi boiler, a loft shower can usually run on mains pressure without a pump.
Water across much of Mid Glamorgan is soft. If that holds for your street in Merthyr Tydfil, 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 shower pump on a gravity system, an electric shower, or advice on moving to mains pressure, depending on your system
- Electrics by a qualified electrician, tested and certified, then tiling, testing and handover
- A drainage route from the loft to the soil stack with enough fall, or a pumped waste or macerator where the rules allow it
- A check of the floor joists where a bath or large shower tray will sit
Decisions to make first
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.
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 Wales
Wales applies its own Part P, with a wider notifiable list than England, and its own Part F with similar extract rates. Part H covers the new drainage route down from the loft.

