Underfloor heating in Surrey

What does bathroom underfloor heating cost in Surrey?

Our guide range in Surrey is £800–£2,800 including VAT. Prices in Surrey run at about 12% above the UK guide, based on South East England labour rates.

Typical

Electric mat

£800–£1,700

Thermostat and RCD-protected supply

Electric, larger room

£1,350–£2,500

Whole floor coverage

Wet system

£1,700–£3,400

Manifold or single-zone kit

Guide prices for Surrey including VAT. Your itemised written quote after the free survey is the price that counts.

Which towns do we cover in Surrey?

Supplies across most of Surrey 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. For Woking homes having the bathroom floor replaced, underfloor heating adds one to two days to the fit.

What the job includes

A floor sensor set between the heating runs and wired back to the thermostat
Resistance and insulation tests on the mat before, during and after tiling, with the readings recorded
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
Bringing the system up to temperature gradually once the adhesive and grout have cured
A dial, programmable or smart thermostat, with the supply RCD protected, tested and certified by a qualified electrician

Decisions to make first

Thermostat

A simple dial thermostat, a programmable one with set times, or a smart thermostat you can control from your phone.

Floor finish

Tiles and stone pass heat through well. LVT and vinyl can work, but check the maximum floor temperature the flooring maker allows.

Mat or loose cable

Mats are quickest on square, open floors. Loose cable is easier to route around awkward shapes, pipe boxing and a curved shower area.

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

Electric underfloor heating in a bathroom must be on a circuit with 30 mA RCD protection under BS 7671, and the thermostat is positioned to suit the bathroom zones. There is no separate approval for the heating itself, but it should have its own thermostat and timer so it only runs when needed, and the electrical work must meet BS 7671 — in England and Wales it is notifiable as bathroom electrical work. Any work on a gas boiler for a wet system must be done by a Gas Safe registered engineer.

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.

Underfloor heating in Surrey: questions

How much does bathroom underfloor heating cost in Surrey?

Bathroom underfloor heating in Surrey typically costs £800–£2,800 including VAT, based on South East England prices. The free survey and itemised written quote give you the exact figure for your home.

Which towns in Surrey do you cover?

We cover the whole of Surrey, including Woking, Guildford, Esher, Redhill, Staines, Banstead, Leatherhead and Ewell. If your town is not listed, we still cover it — get in touch with your postcode.

How long does bathroom underfloor heating take?

Most jobs take 1–2 working days (added to a fit) on site once the products have arrived. We confirm a start date and a day-by-day plan when you approve the quote.

Is the water hard in Surrey?

Is electric underfloor heating expensive to run in a bathroom?

Running cost depends on the heated area, the insulation under the mat, how long it runs and your electricity tariff. As an example, a 150 W per m² mat covering 3 m² draws 450 W, so two hours a day uses about 0.9 kWh. A timer and floor sensor stop it running when nobody is using the room.