Underfloor heating in Carmarthen

Postcode districts: SA31
Nearby: Llanelli, Ammanford and Gorseinon
Guide price: £650–£2,300
Typical time on site: 1–2 working days (added to a fit)
Water: Soft across most of Dyfed
Survey: Free, at your home

What does bathroom underfloor heating cost in Carmarthen?

Our guide price for bathroom underfloor heating in Carmarthen is £650–£2,300 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.

Typical

Electric mat

£650–£1,400

Mat under the tiles

Electric, larger room

£1,100–£2,000

Programmable smart thermostat

Wet system

£1,400–£2,800

Screed or low-profile boards

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. Where a Carmarthen home already has a heat pump, or the heating is being altered, a wet underfloor system is worth comparing with electric. For Carmarthen homes having the bathroom floor replaced, underfloor heating adds one to two days to the fit.

Water across much of Dyfed is soft. Soft water is kind to grout, so mid-tone and darker grouts stay looking fresh. Hardness varies street by street, so check the figure for your postcode with your water supplier.

What the job includes

A floor sensor set between the heating runs and wired back to the thermostat
Insulation boards over the subfloor, so heat goes up into the tiles rather than down into the joists or screed
A dial, programmable or smart thermostat, with the supply RCD protected, tested and certified by a qualified electrician
The electric mat or cable laid to the open floor, kept clear of where the WC, bath and fixed furniture will sit

Decisions to make first

Floor heating and towel rail

Underfloor heating warms the room; a towel rail dries towels. Many bathrooms have both, and a dual-fuel rail keeps working in summer when the boiler is off.

Floor finish

Tiles and stone pass heat through well. LVT and vinyl can work, but check the maximum floor temperature the flooring maker allows.

Rules that apply in Wales

In Wales, the Welsh Part P also makes a new underfloor heating circuit notifiable, and it covers more bathroom electrical work than the English version. A registered electrician handles the notification.

More about underfloor heating

Underfloor heating in Carmarthen: questions

What is the price of bathroom underfloor heating in Carmarthen?

Bathroom underfloor heating in Carmarthen usually costs £650–£2,300 including VAT. Expect the lower end for a like-for-like job with standard products, and the upper end if things move or you choose premium finishes. Your quote is itemised and fixed in writing once agreed.

Is the home survey in Carmarthen really free?

Yes. We visit, measure the room, check the pipework, drainage and electrics, and talk through what you want. You then get a written, itemised quote with no obligation to go ahead.

Do you cover SA31 in Carmarthen?

Yes. We cover all of Carmarthen, including SA31, and nearby Llanelli, Ammanford and Gorseinon. Survey visits are free and arranged at a time that suits you.

Is the water hard in Carmarthen?

Is underfloor heating enough to heat a bathroom on its own?

In a well-insulated bathroom with most of the floor open, it often is. In a small room, the bath, WC and furniture cover much of the floor, so the heated area may be too small to be the only heat source. A heated towel rail alongside is the usual answer.