Underfloor heating in Northampton

Postcode districts: NN1, NN2, NN3, NN4, NN7
Nearby: Newport Pagnell, Milton Keynes and Rugby
Guide price: £650–£2,400
Typical time on site: 1–2 working days (added to a fit)
Water: Hard across most of Northamptonshire
Survey: Free, at your home

What does bathroom underfloor heating cost in Northampton?

For Northampton, our guide range for bathroom underfloor heating is £650 to £2,400 including VAT. We adjust the national guide for East Midlands, where prices are typically about 4% below the UK average. The figure depends on the size of the room, whether anything moves, and the products you pick.

Typical

Electric mat

£650–£1,450

Mat under the tiles

Electric, larger room

£1,150–£2,100

Programmable smart thermostat

Wet system

£1,450–£2,900

Screed or low-profile boards

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

Working in Northampton

As well as Northampton itself (NN1, NN2, NN3 and 2 more postcode districts), we survey in Newport Pagnell, Milton Keynes and Rugby.

In a city the size of Northampton, parking and access for a skip are worth sorting before the start date — we will ask at the survey. If your Northampton home has a suspended timber floor, insulation boards under the mat stop heat disappearing into the void below. For Northampton homes having the bathroom floor replaced, underfloor heating adds one to two days to the fit.

Water across much of Northamptonshire is 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 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
Insulation boards over the subfloor, so heat goes up into the tiles rather than down into the joists or screed
A dial, programmable or smart thermostat, with the supply RCD protected, tested and certified by a qualified electrician

Decisions to make first

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.

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.

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 Northampton: questions

How much does bathroom underfloor heating cost in Northampton?

Bathroom underfloor heating in Northampton usually costs £650–£2,400 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.

Do you cover NN1 in Northampton?

Yes. We cover all of Northampton, including NN1, NN2, NN3, NN4 and 1 more postcode districts, and nearby Newport Pagnell, Milton Keynes and Rugby. Survey visits are free and arranged at a time that suits you.

Is the water hard in Northampton?

Who handles building control for bathroom underfloor heating in Northampton?

Building control for Northampton 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.