- Postcode districts
- SA31
- Nearby
- Llanelli, Ammanford and Gorseinon
- Guide price
- £7,000–£14,000
- Typical time on site
- 8–15 working days
- Water
- Soft across most of Dyfed
- Survey
- Free, at your home
What does a bathroom renovation cost in Carmarthen?
For Carmarthen, our guide range for a bathroom renovation is £7,000 to £14,000 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.
Refresh
- Re-tile and re-floor
Full renovation
- New layout options
Structural
- Walls moved or rooms combined
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).
Carmarthen gets the same process as anywhere else: a free survey at your home and a written, itemised quote. A renovation survey in Carmarthen looks behind the surfaces, at joists, pipework and wiring, before any figure is put on paper. In Carmarthen flats, the lease and the flat below are considered before a renovation is planned, particularly for moving the WC or adding a vent.
Water across much of Dyfed is soft. 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
- Re-plastering or boarding, with cement-based boards and tanking in the wet areas
- Repairs to rotten floorboards, joists or other timber found once the room is open
- New wiring, lighting, extractor fan and RCD protection, installed and certified by a qualified electrician
- New hot and cold pipework and wastes, with isolation valves to each fitting
Decisions to make first
Heating
Moving the radiator, adding a heated towel rail or laying underfloor heating is simpler while the room is stripped.
Plaster or boards
Plaster suits dry walls that will be painted. Cement-based tile backer boards are the better base behind showers and under heavy tiles.
Rules that apply in Wales
Wales applies its own building regulations, including a wider Part P and its own Parts F and H. Structural and drainage changes go through building control in much the same way as in England.

