- Postcode districts
- CF47, CF48
- Nearby
- Aberdare, Rhondda and Ebbw Vale
- Guide price
- £650–£2,300
- Typical time on site
- 1–2 working days (added to a fit)
- Water
- Soft across most of Mid Glamorgan
- Survey
- Free, at your home
What does bathroom underfloor heating cost in Merthyr Tydfil?
As a guide, budget £650 to £2,300 including VAT for bathroom underfloor heating in Merthyr Tydfil; 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.
Electric mat
- Mat under the tiles
Electric, larger room
- Programmable smart thermostat
Wet system
- Screed or low-profile boards
Guide prices for Merthyr Tydfil including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Merthyr Tydfil
In Merthyr Tydfil we cover CF47 and CF48; we also cover Aberdare, 3.8 miles away, and Rhondda.
In Merthyr Tydfil, as anywhere, the age of the house decides a lot: pipe sizes, floor construction and where the soil stack runs. Where a Merthyr Tydfil home already has a heat pump, or the heating is being altered, a wet underfloor system is worth comparing with electric. We check door thresholds in Merthyr Tydfil homes at the survey, because underfloor heating and new tiles raise the floor slightly.
Most of Mid Glamorgan is supplied with soft water. 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
- For wet systems, pipes in low-profile boards or screed connected to a manifold or single-zone kit, with any boiler work done by a Gas Safe registered engineer
- The electric mat or cable laid to the open floor, kept clear of where the WC, bath and fixed furniture will sit
- A dial, programmable or smart thermostat, with the supply RCD protected, tested and certified by a qualified electrician
- Bringing the system up to temperature gradually once the adhesive and grout have cured
Decisions to make first
Thermostat
A simple dial thermostat, a programmable one with set times, or a smart thermostat you can control from your phone.
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.
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.
