DATA-BACKED GUIDE · UPDATED JULY 2026
Electric underfloor heating cost for a bathroom or kitchen
Electric underfloor heating is the quiet upgrade that turns cold morning tiles into something you actually want to stand on. In smaller rooms like bathrooms and kitchens it often beats a wet system on install cost, because the heating mat drops straight under the tiles with little fuss. The real prices on this page come from real bathroom and kitchen jobs, so you can see what the mat, the thermostat and the fitting really add up to, rather than a rough guess pulled from a supplier brochure.
The quick version
- Electric mats suit small rooms because the install is quick and the height added under the tiles is minimal.
- The heated area drives the cost, and you only mat the floor you walk on, not under units or the bath.
- A Part P registered electrician must make the final connection so the work meets building regulations, whoever lays the mat itself.
- Underfloor heating can qualify as an energy-saving measure at 0% VAT until 2027 in many installs, which is worth checking before you agree a quote.
- Insulation boards under the mat are not optional extras. Skip them and the floor loses heat downwards into the subfloor instead of into the room.
- A programmable thermostat costs more to buy but earns that back by only running the floor when someone is actually using the room.
What people actually paid
Real prices, in people's own words
- £1,100“just paid Wunda around £1100 for the components for our GF UFH. this includes a Grundfos pump station, 11 port manifold, perimeter insulation strip, pipe staples, around 1200m of 16mm pipe and the required isolation valves.”
- £1,100“pricing as above I did mine £1100 most my bits came from Outsourced Energy”
- £1,200“The UFH kit (pipes, manifolds, actuators, stats, control unit etc) came in at £1200 (supply only, we self-fitted). We did get a quote of £500 for someone else to fit it for us.”
Genuine amounts posted publicly. We publish the price and the quote, never the person.
Why the price varies so much
The price swings on how much floor you are actually heating and what sits on top of it. A cloakroom needs a tiny mat, while a big kitchen-diner needs a lot more, and the mat is only part of it. You are also paying for insulation boards to stop heat sinking into the subfloor, a thermostat, the electrician's time to wire it safely, and the tiling that goes back down over the top. If the floor needs levelling first, or the tiler is working around awkward corners and a WC, the labour climbs. The quality of the thermostat matters too, since a smart programmable unit costs more upfront but trims running costs later. Who actually does the work changes the price as well. A tiler who subcontracts the electrical connection to a jobbing Part P electrician prices differently to an underfloor heating specialist who employs their own electrician and treats the whole job as one trade. Region plays a part too, since labour rates for both tilers and electricians are not the same everywhere in the country, and a job that includes taking up an old floor and levelling the subfloor will always cost more than a straightforward retrofit onto a sound, flat base.
How to pay less
- Only heat the floor you stand on. There is no point running mats under a fitted kitchen or the bath, so measure the walked-on area properly before anyone prices the job.
- Lay insulation boards underneath so the warmth rises into the room instead of soaking into the subfloor. It costs a little more upfront and saves on running costs for as long as you own the floor.
- Have the mat fitted at the same time as new tiles so you pay for the floor prep once rather than ripping tiles up twice.
- Get three quotes covering the mat, thermostat and the electrician's connection so nothing is hidden in a single lump-sum figure.
- Ask whether the quote already assumes a Part P electrician or whether that is a separate call-out, since some fitters bundle it and some do not.
- Check if the job qualifies for the 0% VAT energy-saving rate before you sign anything. It is a straightforward saving if the installer applies it correctly from the start.
Common questions
Is electric underfloor heating expensive to run in a bathroom?
For a small bathroom used in short bursts it is modest, since you are only heating a few square metres for an hour or two. A good programmable thermostat keeps the cost sensible by warming the floor only when you need it, rather than leaving it ticking over all day.
Can I fit the mat myself and just get an electrician for the connection?
Some people lay the mat and leave the final wiring to a professional, but the electrical connection must be done by a Part P registered electrician to comply with building regulations. Check with your fitter, as many prefer to handle the whole job for the guarantee, and pricing this as two separate jobs does not always work out cheaper once you add up two call-outs.
Does electric underfloor heating raise the floor height much?
Only a little. The mat and adhesive add a few millimetres under the tiles, which is why it works so well in retrofit bathrooms and kitchens where you cannot lose much height, unlike a wet underfloor system that needs a much deeper build-up.
Do I need to insulate under the mat, or can I skip that to save money?
Skipping the insulation boards is a false saving. Without them, a good share of the heat goes down into the subfloor instead of up into the room, so the thermostat has to work harder and your running costs go up for the life of the floor. It is a small extra cost at install stage that pays for itself.
Will electric underfloor heating qualify for 0% VAT?
In many installs it can, as underfloor heating qualifies as an energy-saving measure at 0% VAT until 2027. Confirm with your installer that the quote already reflects this rather than assuming it and finding standard VAT added at invoice stage.
Should I get the mat and the tiling quoted together or separately?
Together, where possible. Having the mat fitted at the same time as new tiles means the floor is only prepped and lifted once, and it avoids the awkward situation of two trades needing access to the same floor on different days. It also gives you one point of contact if anything under the tiles needs checking later.