- Postcode districts
- BN1, BN2, BN3, BN41
- Nearby
- Shoreham-by-Sea, Peacehaven and Lewes
- 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 Brighton?
Guide price in Brighton: £800–£2,800 including VAT, depending on the room and what you choose. We adjust the national guide for South East England, where prices are typically about 12% above the UK average. The figure depends on the size of the room, whether anything moves, and the products you pick.
Electric mat
- Insulation board
Electric, larger room
- Electrician sign-off
Wet system
- Pipes linked to the heating
Guide prices for Brighton including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Brighton
We cover every part of Brighton, including BN1, BN2, BN3 and 1 more postcode districts, and nearby Shoreham-by-Sea (5.9 miles) and Peacehaven (6.3 miles).
Brighton is a big place with every kind of home, from terraces to flats to new builds, so we never price from a photo alone. For Brighton homes having the bathroom floor replaced, underfloor heating adds one to two days to the fit. Where a Brighton home already has a heat pump, or the heating is being altered, a wet underfloor system is worth comparing with electric.
Water across much of East Sussex 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
- The electric mat or cable laid to the open floor, kept clear of where the WC, bath and fixed furniture will sit
- 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
- Bringing the system up to temperature gradually once the adhesive and grout have cured
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 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.
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.

