- Postcode districts
- KT15, KT16, TW17
- Nearby
- Weybridge, Staines and Egham
- Guide price
- £800–£2,800
- Typical time on site
- 1–2 working days (added to a fit)
- Water
- Hard across most of Surrey
- Survey
- Free, at your home
What does bathroom underfloor heating cost in Chertsey?
Our guide price for bathroom underfloor heating in Chertsey is £800–£2,800 including VAT. Labour costs in South East England put local prices at about 12% above the UK guide figure. The figure depends on the size of the room, whether anything moves, and the products you pick.
Electric mat
- Mat under the tiles
Electric, larger room
- Programmable smart thermostat
Wet system
- Screed or low-profile boards
Guide prices for Chertsey including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Chertsey
In Chertsey we cover KT15, KT16 and TW17; we also cover Weybridge, 2.4 miles away, and Staines.
Chertsey gets the same process as anywhere else: a free survey at your home and a written, itemised quote. If your Chertsey home has a suspended timber floor, insulation boards under the mat stop heat disappearing into the void below. If your Chertsey bathroom has a cold tiled floor and no room for a bigger radiator, an electric mat under new tiles is the simplest answer.
Water across much of Surrey 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
- Bringing the system up to temperature gradually once the adhesive and grout have cured
- 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
- Insulation boards over the subfloor, so heat goes up into the tiles rather than down into the joists or screed
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.
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.

