- Postcode districts
- CF61
- Nearby
- Bridgend, Barry and Porthcawl
- Guide price
- £6,000–£12,000
- Typical time on site
- 6–12 working days
- Water
- Moderately hard across most of South Glamorgan
- Survey
- Free, at your home
What does a loft bathroom cost in Llantwit Major?
For Llantwit Major, our guide range for a loft bathroom is £6,000 to £12,000 including VAT. Prices in Wales run at about 7% 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
- Existing loft shower room
Signature
- Fitted furniture to the eaves
New loft bathroom
- Ventilation and electrics to regulations
Guide prices for Llantwit Major including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Llantwit Major
As well as Llantwit Major itself (CF61), we survey in Bridgend, Barry and Porthcawl.
Being a smaller town does not change how we work in Llantwit Major: free survey, written quote, one team. If your Llantwit Major house has a combi boiler, a loft shower can usually run on mains pressure without a pump. If your Llantwit Major loft conversion has a bedroom but no bathroom, the survey starts with where the soil stack runs and how much headroom you have.
Water across much of South Glamorgan is moderately hard. A quick wipe of the glass and an easy-clean coating are worth having on a new shower in Llantwit Major. 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
- A check of the floor joists where a bath or large shower tray will sit
- A drainage route from the loft to the soil stack with enough fall, or a pumped waste or macerator where the rules allow it
- Electrics by a qualified electrician, tested and certified, then tiling, testing and handover
Decisions to make first
Getting the water pressure
A pumped shower suits a gravity system with a cold tank; an electric shower heats cold mains water at the point of use; a combi or unvented cylinder gives mains pressure throughout.
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.
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.

