Underfloor heating in Harrow

Postcode districts: HA1, HA2, HA3, HA5, HA7
Nearby: Brent, Wembley and Northolt
Guide price: £900–£3,100
Typical time on site: 1–2 working days (added to a fit)
Water: Very hard across most of Greater London
Survey: Free, at your home

What does bathroom underfloor heating cost in Harrow?

In Harrow, bathroom underfloor heating typically costs £900–£3,100 including VAT, based on London prices. Labour costs in London put local prices at about 25% above the UK guide figure. The figure depends on the size of the room, whether anything moves, and the products you pick.

Typical

Electric mat

£900–£1,900

Thermostat and RCD-protected supply

Electric, larger room

£1,500–£2,800

Whole floor coverage

Wet system

£1,900–£3,800

Manifold or single-zone kit

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

Working in Harrow

We cover every part of Harrow, including HA1, HA2, HA3 and 2 more postcode districts, and nearby Brent (2.2 miles) and Wembley (2.3 miles).

London homes in Harrow often mean stairs, permits and neighbours below; we plan the logistics as carefully as the bathroom. If your Harrow bathroom has a cold tiled floor and no room for a bigger radiator, an electric mat under new tiles is the simplest answer. For Harrow homes having the bathroom floor replaced, underfloor heating adds one to two days to the fit.

Water across much of Greater London is very 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
Resistance and insulation tests on the mat before, during and after tiling, with the readings recorded
Bringing the system up to temperature gradually once the adhesive and grout have cured
A check of the floor construction, the room's heat loss and where the thermostat and supply will go

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 Harrow: questions

What is the price of bathroom underfloor heating in Harrow?

Bathroom underfloor heating in Harrow usually costs £900–£3,100 including VAT. Room size, layout changes and your choice of products move the figure within that range. The free survey gives you an itemised quote, fixed in writing once the details are agreed.

Who handles building control for bathroom underfloor heating in Harrow?

Building control for Harrow 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.

How long does bathroom underfloor heating take?

Allow 1–2 working days (added to a fit) on site for most jobs, plus the lead time for products after you approve the quote. We give you a day-by-day plan before work starts in Harrow.

Is the home survey in Harrow really free?

Yes. We visit, measure the room, check the pipework, drainage and electrics, and talk through what you want. You then get a written, itemised quote with no obligation to go ahead.

Is underfloor heating enough to heat a bathroom on its own?

In a well-insulated bathroom with most of the floor open, it often is. In a small room, the bath, WC and furniture cover much of the floor, so the heated area may be too small to be the only heat source. A heated towel rail alongside is the usual answer.