- Postcode districts
- SA31
- Nearby
- Llanelli, Ammanford and Gorseinon
- Guide price
- £4,200–£7,900
- Typical time on site
- 5–8 working days
- Water
- Soft across most of Dyfed
- Survey
- Free, at your home
What does a small bathroom cost in Carmarthen?
As a guide, budget £4,200 to £7,900 including VAT for a small bathroom in Carmarthen; your written quote will pin it down. We adjust the national guide for Wales, where prices are typically about 7% below the UK average. The figure depends on the size of the room, whether anything moves, and the products you pick.
Essential
- Space-saving bath or shower bath
Signature
- Wall-hung vanity and WC
Bespoke
- Underfloor heating
Guide prices for Carmarthen including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Carmarthen
As well as Carmarthen itself (SA31), we survey in Llanelli, Ammanford and Gorseinon.
Carmarthen gets the same process as anywhere else: a free survey at your home and a written, itemised quote. If your Carmarthen bathroom is a box room over the stairs, the first job is finding out where the soil stack lets the WC sit. If nobody in your Carmarthen home has used the bath in years, we can price a walk-in shower layout next to a shorter bath so you can compare.
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 measured survey including the door swing, window position, soil stack and any boxing that could be slimmed down
- Shorter, narrower or shower baths where a full 1700 mm bath does not sit well
- Two or three layout options, each priced, so you can compare keeping the bath with a walk-in shower
- Lighting, extractor fan and towel rail wired by a qualified electrician, tested and certified
Decisions to make first
Tiles and grout
Larger tiles with a grout close to the tile colour make walls look calmer. Running the same floor tile into the shower makes the floor look continuous.
Storage
Recess shelves into stud walls or boxing, put a mirror cabinet over the basin and use the wall above the WC. Avoid floor-standing units in very tight rooms.
Rules that apply in Wales
Wales has its own Part P, with a wider list of notifiable work than England, and its own Part F with similar extract rates. Expect the electrical work to be notified and certified.

