- Postcode districts
- GU1, GU2, GU4
- Nearby
- Godalming, Woking and Aldershot
- 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 Guildford?
For Guildford, 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.
Electric mat
- Insulation board
Electric, larger room
- Electrician sign-off
Wet system
- Pipes linked to the heating
Guide prices for Guildford including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Guildford
We cover every part of Guildford, including GU1, GU2 and GU4, and nearby Godalming (3.8 miles) and Woking (5.8 miles).
Homes in and around Guildford vary, so we look at the floor, the walls and the water system before we price anything. Whether your Guildford bathroom is a small en-suite or a large main bathroom, the mat is sized to the open floor, not the whole room. Where a Guildford home already has a heat pump, or the heating is being altered, a wet underfloor system is worth comparing with electric.
Most of Surrey 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
- A dial, programmable or smart thermostat, with the supply RCD protected, tested and certified by a qualified electrician
- A check of the floor construction, the room's heat loss and where the thermostat and supply will go
- The electric mat or cable laid to the open floor, kept clear of where the WC, bath and fixed furniture will sit
- 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 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.

