Underfloor heating in Trowbridge

Postcode districts: BA14
Nearby: Westbury, Melksham and Bath
Guide price: £700–£2,600
Typical time on site: 1–2 working days (added to a fit)
Water: Hard across most of Wiltshire
Survey: Free, at your home

What does bathroom underfloor heating cost in Trowbridge?

Our guide price for bathroom underfloor heating in Trowbridge is £700–£2,600 including VAT. The figure depends on the size of the room, whether anything moves, and the products you pick.

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 Trowbridge including VAT. Your itemised written quote after the free survey is the price that counts.

Working in Trowbridge

As well as Trowbridge itself (BA14), we survey in Westbury, Melksham and Bath.

Homes in and around Trowbridge vary, so we look at the floor, the walls and the water system before we price anything. For Trowbridge homes having the bathroom floor replaced, underfloor heating adds one to two days to the fit. If your Trowbridge home has a suspended timber floor, insulation boards under the mat stop heat disappearing into the void below.

Water across much of Wiltshire 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

Insulation boards over the subfloor, so heat goes up into the tiles rather than down into the joists or screed
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
Resistance and insulation tests on the mat before, during and after tiling, with the readings recorded
The electric mat or cable laid to the open floor, kept clear of where the WC, bath and fixed furniture will sit

Decisions to make first

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.

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.

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 Trowbridge: questions

What is the price of bathroom underfloor heating in Trowbridge?

Bathroom underfloor heating in Trowbridge usually costs £700–£2,600 including VAT. Where you land in that range depends on the size of the room, whether the layout changes and the products you choose. After the free survey you get an itemised written quote, and the price is fixed in writing once the layout and products are agreed.

Is the water hard in Trowbridge?

Who handles building control for bathroom underfloor heating in Trowbridge?

Building control for Trowbridge 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 Trowbridge.

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.