- Postcode districts
- SA31
- Nearby
- Llanelli, Ammanford and Gorseinon
- Guide price
- Included with supply and fit
- Typical time on site
- survey visit plus design
- Water
- Soft across most of Dyfed
- Survey
- Free, at your home
What does a new bathroom design cost in Carmarthen?
Design comes with the job: the survey, layout and itemised quote are free. In Carmarthen, a complete designed, supplied and fitted bathroom typically costs £6,000–£11,250 including VAT. 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.
Survey and layout
- Layout options on paper
Detailed design
- Lighting and electrical plan
Full project
- Design, supply and fit
Guide prices for Carmarthen including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Carmarthen
We cover every part of Carmarthen, including SA31, and nearby Llanelli (13.5 miles) and Ammanford (14.2 miles).
Being a smaller town does not change how we work in Carmarthen: free survey, written quote, one team. For loft rooms and sloping ceilings in Carmarthen homes, the design checks head height where you stand, not just the floor area. We measure Carmarthen bathrooms on site before drawing anything, so layouts are based on your walls rather than a standard plan.
Most of Dyfed is supplied with soft water. That leaves you free to choose matt black, brushed brass or clear glass without worrying much about limescale. Hardness varies street by street, so check the figure for your postcode with your water supplier.
What the job includes
- A lighting and electrical plan showing switches, fittings, shaver socket and extractor fan
- A clear view of which changes are cheap and which mean moving drainage or opening floors
- Checks on the soil stack, waste routes, joist direction, water pressure, hot water system and existing electrics
- Layout options drawn to scale, showing the bath or shower, WC, basin, storage and towel rail
Decisions to make first
Planning for later
Timber noggins in the walls for future grab rails, a wider door or a level shower floor cost far less to build in now than to add later.
Tile setting-out
Centring tiles on the window, basin or niche avoids thin slivers at the edges. Large tiles mean fewer joints but need flatter walls.
Rules that apply in Wales
Wales has its own Parts F, H and P. Extract rates are similar to England, but more electrical work is notifiable, so the design should allow for a registered electrician to notify it.

