- Postcode districts
- BS48
- Nearby
- Portishead, Clevedon and Bishopsworth
- 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 Nailsea?
For Nailsea, our guide range for bathroom underfloor heating is £700 to £2,600 including VAT. The figure depends on the size of the room, whether anything moves, and the products you pick.
Electric mat
- Thermostat and RCD-protected supply
Electric, larger room
- Whole floor coverage
Wet system
- Manifold or single-zone kit
Guide prices for Nailsea including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Nailsea
As well as Nailsea itself (BS48), we survey in Portishead, Clevedon and Bishopsworth.
Being a smaller town does not change how we work in Nailsea: free survey, written quote, one team. For Nailsea homes having the bathroom floor replaced, underfloor heating adds one to two days to the fit. If your Nailsea home has a suspended timber floor, insulation boards under the mat stop heat disappearing into the void below.
Supplies across most of Somerset are 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
- Bringing the system up to temperature gradually once the adhesive and grout have cured
- Insulation boards over the subfloor, so heat goes up into the tiles rather than down into the joists or screed
- Resistance and insulation tests on the mat before, during and after tiling, with the readings recorded
- 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
Decisions to make first
Floor finish
Tiles and stone pass heat through well. LVT and vinyl can work, but check the maximum floor temperature the flooring maker allows.
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.

