In-Slab Heating

Electronic Floor Heating

Warmup’s custom laid heating elements allow full coverage of the floor, and are buried beneath the screed, allowing you to install the floor covering of your choice on top of the screed.

As the heating solution becomes part of the floor, with no hot or moving parts, you can still enjoy an uncluttered home, as well as a maintenance-free heating system. Best of all, this clean, silent and odour-free heating solution will not dry out the air or aggravate allergies.

The in-slab heating elements are buried in your floor slab, which is normally 20-60mm thick. The thick screed protects the cables and provides a ready surface for any kind of floor covering. Whether you polish your concrete floors to a glossy finish or cover the screed with carpets or tiles, the heating system is suitable for any flooring application.

Floor Covering

Any floor covering can be applied to the screed surface, or it can be left bare for a modern, industrial finish.


The screed covering is approximately 20-60mm thick, effectively burying the heater beneath a thick layer of screed.

Heating Cables

Our in-slab heating cables are factory tested at 5000 volts, to ensure safety and longevity. The PVC coated cables are designed to run slightly warmer than the modern heating systems, as it has to heat through a thicker layer of screed.


The subfloor should be smooth, level and strong, to ensure a good bond to the screed layer.


Warmup in-slab heaters are safety tested and are completely waterproof. It is encased in a tough "ETFE" insulation which is mechanically tough, excellent dielectric strength and resistant to alkali chemical attack in concrete.


Warmup components have the benefit of over 30 years of European technology for applications that demand high flexibility, continuous operation at high temperatures and long working life.


Discreetly hidden from view, these thin heating elements lie hidden directly under the tiles. There are no visible elements or radiators, no summertime storage problems.

Surface Type

Under any surface.


While Warmup heaters have been designed to never overheat - and may be left on continuously - timers and thermostats are available as optional extras for additional control.


The system must be installed by an installer who is certified by Warmup, to ensure the full lifespan of the product is enjoyed.


This is in-screed heating, and is effective within 1-2 days of switch-on. It is recommended to turn the system on for winter and leave it on constantly, at a low temperature.


A 10 year factory-backed warranty is provided. Warranty forms are issued with each heater.


In-slab heaters installed in bathrooms and wet areas must be protected by an earth-shield. Warmup’s earth-braided in-slab heaters are compliant for use in bathrooms and wet areas.


For ultimate control and maximum energy efficiency, we recommend the use of an intelligent Warmup thermostat.

Contact us for a Warmup agent in your area