- Postcode districts
- CF61
- Nearby
- Bridgend, Barry and Porthcawl
- Guide price
- £650–£2,300
- Typical time on site
- 1–2 working days (added to a fit)
- Water
- Moderately hard across most of South Glamorgan
- Survey
- Free, at your home
What does bathroom underfloor heating cost in Llantwit Major?
As a guide, budget £650 to £2,300 including VAT for bathroom underfloor heating in Llantwit Major; your written quote will pin it down. 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.
Electric mat
- Mat under the tiles
Electric, larger room
- Programmable smart thermostat
Wet system
- Screed or low-profile boards
Guide prices for Llantwit Major including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Llantwit Major
We cover every part of Llantwit Major, including CF61, and nearby Bridgend (7.6 miles) and Barry (8.8 miles).
Being a smaller town does not change how we work in Llantwit Major: free survey, written quote, one team. If your Llantwit Major home has a suspended timber floor, insulation boards under the mat stop heat disappearing into the void below. We check door thresholds in Llantwit Major homes at the survey, because underfloor heating and new tiles raise the floor slightly.
Water across much of South Glamorgan is moderately hard. Mid-tone grout and matt tiles hide the odd water mark better than dark grout and high gloss. Hardness varies street by street, so check the figure for your postcode with your water supplier.
What the job includes
- A dial, programmable or smart thermostat, with the supply RCD protected, tested and certified by a qualified electrician
- A floor sensor set between the heating runs and wired back to the thermostat
- Bringing the system up to temperature gradually once the adhesive and grout have cured
- Insulation boards over the subfloor, so heat goes up into the tiles rather than down into the joists or screed
Decisions to make first
Mat or loose cable
Mats are quickest on square, open floors. Loose cable is easier to route around awkward shapes, pipe boxing and a curved shower area.
Thermostat
A simple dial thermostat, a programmable one with set times, or a smart thermostat you can control from your phone.
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.
