Underfloor heating in Crawley

Postcode districts: RH10, RH11
Nearby: Horley, Horsham and East Grinstead
Guide price: £800–£2,800
Typical time on site: 1–2 working days (added to a fit)
Water: Hard across most of West Sussex
Survey: Free, at your home

What does bathroom underfloor heating cost in Crawley?

Our guide price for bathroom underfloor heating in Crawley is £800–£2,800 including VAT. We adjust the national guide for South East England, where prices are typically about 12% above the UK average. The figure depends on the size of the room, whether anything moves, and the products you pick.

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 Crawley including VAT. Your itemised written quote after the free survey is the price that counts.

Working in Crawley

In Crawley we cover RH10 and RH11; we also cover Horley, 4.4 miles away, and Horsham.

Crawley has a wide mix of house ages, so the survey is where we spot old lead pipework, weak joists or a tight soil stack. If your Crawley bathroom has a cold tiled floor and no room for a bigger radiator, an electric mat under new tiles is the simplest answer. Where a Crawley home already has a heat pump, or the heating is being altered, a wet underfloor system is worth comparing with electric.

Supplies across most of West Sussex 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

A floor sensor set between the heating runs and wired back to the thermostat
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
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

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

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.

More about underfloor heating

Underfloor heating in Crawley: questions

What is the price of bathroom underfloor heating in Crawley?

Bathroom underfloor heating in Crawley usually costs £800–£2,800 including VAT. The final figure comes down to what you choose and what we find at the survey; your written quote lists every item so you can see where the money goes.

Do you cover RH10 and RH11 in Crawley?

Yes. We cover all of Crawley, including RH10 and RH11, and nearby Horley, Horsham and East Grinstead. Survey visits are free and arranged at a time that suits you.

Is the water hard in Crawley?

Who handles building control for bathroom underfloor heating in Crawley?

Building control for Crawley is handled by the local council or an approved inspector. If your job needs sign-off — for example a new circuit, new drainage or a new extractor where there was none — we tell you at the survey and handle the notification as part of the work.

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.