Underfloor heating usually comes down to two calls: electric for smaller areas or quick retrofit work, and water underfloor heating when you’re covering more floor or tying into a wet system. Mats suit straightforward rooms where you want predictable coverage. Loose cable gives you more freedom round awkward layouts, but it takes more setting out. Control matters too. If the floor build-up is tight, the wrong format soon makes the job awkward.
Thermosphere Decoupling Membrane Roll - 1m²
Blue decoupling membrane for tiled floors and walls, 1m² roll
Polypipe UFCH Valve Actuators 2 Wire
Polypipe UFCH 2-wire valve actuator
ThermoSphere Floor Sensor Probe - 3m
3m floor sensor probe for ThermoSphere underfloor heating thermostats.
Heatmiser 8 Zone Wiring Centre 230V
Heatmiser UH8 8-zone wiring centre, 230V, for underfloor heating
Thermosphere Self Adhesive Mesh - 4m x 0.5m 2m² 150W/m²
Self-adhesive electric underfloor heating mesh, 2m², 300W, IPX7, lifetime guaran…
Flexel Underfloor Heating Touch Screen Thermostat - White
Touch screen underfloor heating thermostat in white
Flexel Underfloor Heating Mat - 1m² 150W 230V
150W/m² electric underfloor heating mat for tile, stone, and wet areas
QA Flooring Solutions Quicktherm Foam Underlay for Underfloor Heating - 1.8mm 10…
1.8mm foam underlay for underfloor heating, 10m² pack
Warmup Electric Underfloor Heating Stickymat - 2.5m² 200W/m²
2.5m² self-adhesive electric underfloor heating mat, 200W/m², IPX7
Thermosphere Self Adhesive Mesh - 150W/m² 10m x 0.5m 5m²
5m² 150W/m² self-adhesive underfloor heating mesh (10m x 0.5m)
Start with the space you’ve got and how the floor’s going to be used. That usually fixes the spec before finishes or controls come into it. Tight rooms, awkward layouts and quick turnarounds push you one way. Bigger areas, more even coverage and a longer programme push you another. The jobs that come back are often the ones where price led the choice and the layout didn’t suit the system. Once the footprint is clear, you can narrow underfloor heating by build-up, response time and what the rest of the heating setup can support.
Electric underfloor heating suits smaller refurb jobs and rooms where you want a simpler spec. Water underfloor heating is the better fit for larger runs, because it ties into the wider heating setup and spreads the load differently.
The trade-off is clear. Electric is quicker to specify and less involved on the day. Water brings more parts, including an underfloor heating manifold, so the rest of the Central Heating setup needs to suit.
Mats are the faster choice where the floor shape is regular. Loose systems give you more control, but they take longer to lay out.
What usually decides it is the floor build-up, the heat source and how much control you need. If you’re keeping floor height tight, electric underfloor heating is usually the cleaner pick. If you’re tying into a wet system, water underfloor heating makes more sense, but it brings more components and needs more coordination.
A lot of call-backs come from missing the controls or the extras, so sort Central Heating Accessories at the same time. If the job is being linked into the boiler side, check Flues & Boiler Accessories before you commit. That can change what’s practical on the day.
Once you’ve settled the underfloor heating itself, the next call is the build-up around it. That means the panels, screed or boards that suit the floor finish, plus the controls and manifold if it’s a water set-up.
Don’t leave the surrounding bits as an afterthought. A system can look right on paper and still cause grief if the floor build-up, control gear or pipework layout doesn’t suit the job. After that, you’re into the adjacent finishes and any access panels or storage that need to work around the heating layout, not against it.














