Underfloor heating in Lewes

Postcode districts: BN7
Nearby: Rottingdean, Peacehaven and Brighton
Guide price: £800–£2,800
Typical time on site: 1–2 working days (added to a fit)
Water: Hard across most of East Sussex
Survey: Free, at your home

What does bathroom underfloor heating cost in Lewes?

For Lewes, our guide range for bathroom underfloor heating is £800 to £2,800 including VAT. Prices in South East England run at about 12% above 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.

Typical

Electric mat

£800–£1,700

Insulation board

Electric, larger room

£1,350–£2,500

Electrician sign-off

Wet system

£1,700–£3,400

Pipes linked to the heating

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

Working in Lewes

As well as Lewes itself (BN7), we survey in Rottingdean, Peacehaven and Brighton.

Lewes gets the same process as anywhere else: a free survey at your home and a written, itemised quote. If your Lewes bathroom has a cold tiled floor and no room for a bigger radiator, an electric mat under new tiles is the simplest answer. Where a Lewes home already has a heat pump, or the heating is being altered, a wet underfloor system is worth comparing with electric.

Most of East Sussex has hard water. 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
A floor sensor set between the heating runs and wired back to the thermostat

Decisions to make first

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.

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 Lewes: questions

What is the price of bathroom underfloor heating in Lewes?

Bathroom underfloor heating in Lewes usually costs £800–£2,800 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 Lewes?

Who handles building control for bathroom underfloor heating in Lewes?

Building control for Lewes 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 Lewes.

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.