Underfloor heating in Bath

Postcode districts: BA1, BA2
Nearby: Keynsham, Trowbridge and Kingswood
Guide price: £700–£2,600
Typical time on site: 1–2 working days (added to a fit)
Water: Hard across most of Somerset
Survey: Free, at your home

What does bathroom underfloor heating cost in Bath?

Guide price in Bath: £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 Bath including VAT. Your itemised written quote after the free survey is the price that counts.

Working in Bath

We work right across Bath — BA1 and BA2 — and in neighbouring Keynsham and Trowbridge.

Bath is a big place with every kind of home, from terraces to flats to new builds, so we never price from a photo alone. Where a Bath home already has a heat pump, or the heating is being altered, a wet underfloor system is worth comparing with electric. If your Bath home has a suspended timber floor, insulation boards under the mat stop heat disappearing into the void below.

Water across much of Somerset is hard. Hard water leaves white marks on dark grout and gloss tiles, so matt finishes and stain-resistant grout are the practical choice. 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
A floor sensor set between the heating runs and wired back to the thermostat
A check of the floor construction, the room's heat loss and where the thermostat and supply will go
A dial, programmable or smart thermostat, with the supply RCD protected, tested and certified by a qualified electrician

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.

Floor finish

Tiles and stone pass heat through well. LVT and vinyl can work, but check the maximum floor temperature the flooring maker allows.

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 Bath: questions

How much should I budget for bathroom underfloor heating in Bath?

Bathroom underfloor heating in Bath usually costs £700–£2,600 including VAT. Expect the lower end for a like-for-like job with standard products, and the upper end if things move or you choose premium finishes. Your quote is itemised and fixed in writing once agreed.

Do you cover BA1 and BA2 in Bath?

Yes. We cover all of Bath, including BA1 and BA2, and nearby Keynsham, Trowbridge and Kingswood. Survey visits are free and arranged at a time that suits you.

Is the water hard in Bath?

Who handles building control for bathroom underfloor heating in Bath?

Building control for Bath 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.

Is electric underfloor heating expensive to run in a bathroom?

Running cost depends on the heated area, the insulation under the mat, how long it runs and your electricity tariff. As an example, a 150 W per m² mat covering 3 m² draws 450 W, so two hours a day uses about 0.9 kWh. A timer and floor sensor stop it running when nobody is using the room.