Underfloor heating in Streatham

Postcode districts: SE27, SW12, SW16
Nearby: Mitcham, Brixton and Wimbledon
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 Streatham?

In Streatham, bathroom underfloor heating typically costs £900–£3,100 including VAT, based on London prices. We adjust the national guide for London, where prices are typically about 25% above the UK average. The figure depends on the size of the room, whether anything moves, and the products you pick.

Typical

Electric mat

£900–£1,900

Insulation board

Electric, larger room

£1,500–£2,800

Electrician sign-off

Wet system

£1,900–£3,800

Pipes linked to the heating

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

Working in Streatham

In Streatham we cover SE27, SW12 and SW16; we also cover Mitcham, 2.4 miles away, and Brixton.

In Streatham, many bathrooms are in flats or converted houses, so we check lease consents, access and the floor below before we price. We check door thresholds in Streatham homes at the survey, because underfloor heating and new tiles raise the floor slightly. Whether your Streatham bathroom is a small en-suite or a large main bathroom, the mat is sized to the open floor, not the whole room.

Most of Greater London 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

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

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.

Electric or wet

Electric is cheaper to install and quick to lay in one room. Wet costs more upfront but is usually cheaper to run where it is fed by a gas boiler or heat pump.

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 Streatham: questions

How much should I budget for bathroom underfloor heating in Streatham?

Bathroom underfloor heating in Streatham usually costs £900–£3,100 including VAT. Expect the lower end for a like-for-like job with standard products, and the upper end if things move or you choose premium finishes. Your quote is itemised and fixed in writing once agreed.

Is the home survey in Streatham 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.

Do you cover SE27 in Streatham?

Yes. We cover all of Streatham, including SE27, SW12 and SW16, and nearby Mitcham, Brixton and Wimbledon. Survey visits are free and arranged at a time that suits you.

Is the water hard in Streatham?

Does underfloor heating raise the floor height?

Yes, a little. An electric mat on an insulation board usually adds roughly 10 mm before the adhesive and tile, which matters at the door threshold. Wet systems in low-profile boards add more, and screeded systems more again.