- Postcode districts
- CH5
- Nearby
- Hawarden, Buckley and Flint
- Guide price
- £650–£2,300
- Typical time on site
- 1–2 working days (added to a fit)
- Water
- Moderately hard across most of Clwyd
- Survey
- Free, at your home
What does bathroom underfloor heating cost in Deeside?
As a guide, budget £650 to £2,300 including VAT for bathroom underfloor heating in Deeside; your written quote will pin it down. 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.
Electric mat
- Insulation board
Electric, larger room
- Electrician sign-off
Wet system
- Pipes linked to the heating
Guide prices for Deeside including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Deeside
As well as Deeside itself (CH5), we survey in Hawarden, Buckley and Flint.
Homes in and around Deeside vary, so we look at the floor, the walls and the water system before we price anything. Where a Deeside 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 Deeside homes at the survey, because underfloor heating and new tiles raise the floor slightly.
Water across much of Clwyd 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 check of the floor construction, the room's heat loss and where the thermostat and supply will go
- A floor sensor set between the heating runs and wired back to the thermostat
- Resistance and insulation tests on the mat before, during and after tiling, with the readings recorded
- Bringing the system up to temperature gradually once the adhesive and grout have cured
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.
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.

