Underfloor heating in St Austell

Postcode districts: PL25
Nearby: Bodmin, Truro and Newquay
Guide price: £700–£2,600
Typical time on site: 1–2 working days (added to a fit)
Water: Soft across most of Cornwall
Survey: Free, at your home

What does bathroom underfloor heating cost in St Austell?

Guide price in St Austell: £700–£2,600 including VAT, depending on the room and what you choose. The figure depends on the size of the room, whether anything moves, and the products you pick.

Typical

Electric mat

£700–£1,550

Insulation board

Electric, larger room

£1,200–£2,200

Electrician sign-off

Wet system

£1,550–£3,100

Pipes linked to the heating

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

Working in St Austell

We cover every part of St Austell, including PL25, and nearby Bodmin (9.2 miles) and Truro (13.5 miles).

St Austell gets the same process as anywhere else: a free survey at your home and a written, itemised quote. If your St Austell home has a suspended timber floor, insulation boards under the mat stop heat disappearing into the void below. For St Austell homes having the bathroom floor replaced, underfloor heating adds one to two days to the fit.

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.

What the job includes

A dial, programmable or smart thermostat, with the supply RCD protected, tested and certified by a qualified electrician
Insulation boards over the subfloor, so heat goes up into the tiles rather than down into the joists or screed
The electric mat or cable laid to the open floor, kept clear of where the WC, bath and fixed furniture will sit
Resistance and insulation tests on the mat before, during and after tiling, with the readings recorded

Decisions to make first

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.

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 England

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.

More about underfloor heating

Underfloor heating in St Austell: questions

How much should I budget for bathroom underfloor heating in St Austell?

Bathroom underfloor heating in St Austell usually costs £700–£2,600 including VAT. The final figure comes down to what you choose and what we find at the survey; your written quote lists every item so you can see where the money goes.

Is the water hard in St Austell?

Who handles building control for bathroom underfloor heating in St Austell?

Building control for St Austell is handled by the local council or an approved inspector. If your job needs sign-off — for example a new circuit, new drainage or a new extractor where there was none — we tell you at the survey and handle the notification as part of the work.

How long does bathroom underfloor heating take?

Allow 1–2 working days (added to a fit) on site for most jobs, plus the lead time for products after you approve the quote. We give you a day-by-day plan before work starts in St Austell.

Does underfloor heating raise the floor height?

Yes, a little. An electric mat on an insulation board usually adds roughly 10 mm before the adhesive and tile, which matters at the door threshold. Wet systems in low-profile boards add more, and screeded systems more again.