- Postcode districts
- SG1, SG2
- Nearby
- Hitchin, Letchworth Garden City and Welwyn Garden City
- Guide price
- £750–£2,600
- Typical time on site
- 1–2 working days (added to a fit)
- Water
- Very hard across most of Hertfordshire
- Survey
- Free, at your home
What does bathroom underfloor heating cost in Stevenage?
For Stevenage, our guide range for bathroom underfloor heating is £750 to £2,600 including VAT. Labour costs in East of England put local prices at about 6% 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 Stevenage including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Stevenage
As well as Stevenage itself (SG1 and SG2), we survey in Hitchin, Letchworth Garden City and Welwyn Garden City.
Across a large town like Stevenage, homes range from older terraces to newer estates; the survey tells us which pipework and floor we are dealing with. If your Stevenage home has a suspended timber floor, insulation boards under the mat stop heat disappearing into the void below. If your Stevenage bathroom has a cold tiled floor and no room for a bigger radiator, an electric mat under new tiles is the simplest answer.
Most of Hertfordshire has very 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
- 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
- The electric mat or cable laid to the open floor, kept clear of where the WC, bath and fixed furniture will sit
- Resistance and insulation tests on the mat before, during and after tiling, with the readings recorded
Decisions to make first
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.
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.

