Underfloor heating in Cornwall

What does bathroom underfloor heating cost in Cornwall?

Our guide range in Cornwall is £700–£2,600 including VAT.

Typical

Electric mat

£700–£1,550

Mat under the tiles

Electric, larger room

£1,200–£2,200

Programmable smart thermostat

Wet system

£1,550–£3,100

Screed or low-profile boards

Guide prices for Cornwall including VAT. Your itemised written quote after the free survey is the price that counts.

Which towns do we cover in Cornwall?

Supplies across most of Cornwall are 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. If your Redruth bathroom has a cold tiled floor and no room for a bigger radiator, an electric mat under new tiles is the simplest answer.

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
Resistance and insulation tests on the mat before, during and after tiling, with the readings recorded
A check of the floor construction, the room's heat loss and where the thermostat and supply will go
The electric mat or cable laid to the open floor, kept clear of where the WC, bath and fixed furniture will sit
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.

Electric or wet

Electric is cheaper to install and quick to lay in one room. Wet costs more upfront but is usually cheaper to run where it is fed by a gas boiler or heat pump.

Insulation board thickness

Thicker boards warm up faster and lose less heat downwards, but raise the floor; the right choice depends on the door threshold and the next room.

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 England

Electric underfloor heating in a bathroom must be on a circuit with 30 mA RCD protection under BS 7671, and the thermostat is positioned to suit the bathroom zones. There is no separate approval for the heating itself, but it should have its own thermostat and timer so it only runs when needed, and the electrical work must meet BS 7671 — in England and Wales it is notifiable as bathroom electrical work. Any work on a gas boiler for a wet system must be done by a Gas Safe registered engineer.

In England, a new circuit for underfloor heating is notifiable under Part P, and so is connecting it to an existing circuit in a room with a bath or shower. The electrician either self-certifies through a competent person scheme or the work is notified to building control.

Underfloor heating in Cornwall: questions

How much does bathroom underfloor heating cost in Cornwall?

Bathroom underfloor heating in Cornwall typically costs £700–£2,600 including VAT, based on South West England prices. The free survey and itemised written quote give you the exact figure for your home.

Which towns in Cornwall do you cover?

We cover the whole of Cornwall, including Redruth, Falmouth, St Austell, Truro, Camborne, Newquay, Penzance and Bodmin. If your town is not listed, we still cover it — get in touch with your postcode.

How long does bathroom underfloor heating take?

Most jobs take 1–2 working days (added to a fit) on site once the products have arrived. We confirm a start date and a day-by-day plan when you approve the quote.

Is the water hard in Cornwall?

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.