Electric Underfloor Heating Systems

Electric underfloor heating is a fast, flexible way to add warm floors and comfortable heat to your home. Ultra-thin heating mats and cables sit directly beneath the floor finish, making them ideal for bathrooms, kitchens, ensuites and renovations where you don’t want major building work.

On this page you’ll find a complete range of electric underfloor heating mats, loose cables, in-screed cables, foil and under-wood systems, plus insulation boards and thermostats to finish the job. Use the guide below to choose the right system for your room, then pick the kit size that matches your floor area.

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How Electric Underfloor Heating Works

Electric underfloor heating works by converting electrical energy into gentle radiant heat through ultra-thin heating mats or loose cables installed just beneath your floor finish. Unlike traditional radiators — which heat the air unevenly and often create cold spots — electric underfloor heating warms the entire floor surface at a low, consistent temperature. This raises the mean radiant temperature of the room, creating a comfortable feeling of warmth even at lower air temperatures.

Because the heating element sits close to the surface, electric underfloor heating responds quickly. Most systems reach comfort temperature within 20–30 minutes, making them ideal for rooms that benefit from fast warm-up times such as bathrooms, kitchens and ensuites. The heat rises evenly through tiles, vinyl, laminate or engineered wood, providing reliable heating without the bulky appearance of radiators.

Modern electric underfloor heating also integrates seamlessly with smart thermostats, allowing precise control over schedules, temperatures and energy usage. This ensures you only heat the areas you need — when you actually need them — helping keep running costs efficient. For best performance, electric systems should always be paired with insulation boards, which reduce downward heat loss and improve reaction times.

If you'd like help choosing the right system for your project, see our Electric Underfloor Heating Buyers Guide.

  • Electric Heating Mats

    The quickest and easiest solution for regular-shaped rooms. Ideal under tiles in bathrooms, kitchens and hallways. Available in 150–200W/m² outputs for fast warm-up.

    Shop Underfloor Heating Mats 
  • Flexheat underfloor heating cable in a reel

    Loose Heating Cables

    Perfect for awkward shapes, curved rooms or areas with lots of obstacles. Also ideal for embedding into self-levelling compounds or screeds.

    Shop Loose Heating Cables 
  • In screed electric underfloor heating cable

    In-Screed Heating Cables

    Designed to be installed within a thicker screed layer. Best for new builds, extensions and large spaces where you want a durable long-term heating solution.

    Shop In-Screed Heating Cables 
  • Underfloor heating mat for laminate flooring

    Foil / Under-Wood Heating Systems

    Safe, effective heating for laminate, engineered wood and vinyl floors. Installed without adhesives and designed for floating floors that can’t be tiled over.

    Shop Foil Underfloor Heating 

Running Costs of Electric Underfloor Heating

Electric underfloor heating is typically cheaper and quicker to install than water-based systems, but running costs can vary depending on:

  • Room size
  • Floor insulation
  • Output wattage
  • Thermostat settings
  • How long the system runs

In small, well-insulated rooms such as bathrooms and ensuites, electric underfloor heating can be very cost-effective. The system heats up quickly, only warms the space you need, and can be scheduled precisely using a programmable or smart thermostat.

For larger areas or whole floors, we can help you compare electric and water underfloor heating so you choose the most efficient and cost-effective option for your project.

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Featured Electric Heating Kits

Sizing Your Electric Underfloor Heating System

Sizing is crucial for getting the right heat output and avoiding wasted energy. Only heat the free floor area — not under fixed items like baths, toilets, kitchen units or built-in furniture.

To size your system:

  1. Measure the total room area
  2. Subtract the area covered by fixed objects
  3. Choose the mat or cable kit that matches the remaining heated area
  4. Allow around 10% spare cable if using loose cable

You can also use our online guides or send us your room dimensions. Our team will specify the correct system and kit size for free.

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Answering your questions...

Electric Underfloor Heating – FAQs

What is Electric Underfloor Heating?

An electric underfloor heating system uses thin heating cables or mats beneath the floor to turn the entire floor surface into a low‑temperature radiant heat emitter. It’s quick to warm up, virtually maintenance‑free, and ideal for bathrooms, kitchens and retrofits.

Mats vs Loose Cable - Which Should I Choose?

Mats are fastest for regular-shaped rooms and rapid installs. Loose cable is best for smaller or awkward spaces where you need layout flexibility. Foil systems work brilliantly under floating floors like laminate or engineered wood.

How Much Does It Cost To Run?

Running costs depend on insulation, floor covering and thermostat settings. As a guide, modern systems paired with insulation boards and smart controls can be highly efficient for targeted rooms – helping reduce overall energy use compared with heating the whole house.

Can It Be My Primary Heat Source?

Yes, if the heat loss is within the system’s capacity. Use insulation boards and confirm room heat loss with our calculator or speak to our team for a quick check.

What Floor Finishes Are Suitable?

Tiles, vinyl, LVT, laminate and engineered wood are common. Use the correct system: mats/cable under tile or levelled floors; foil or decoupling layers for floating floors; check compatibility for carpets and always follow manufacturer guidelines.

Which Type of Underfloor Heating to Choose?

We provide two primary types of underfloor heating systems, each offering distinct advantages to meet a wide range of project needs.

Electric Underfloor Heating

Best for retrofitting & smaller rooms.

Designed for smaller spaces and retrofit projects. Offers quick installation with minimal impact on floor levels.

  • Easy retrofit installation
  • Minimal floor height increase
  • Quick heat-up times
  • Individual room control
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Water Underfloor Heating

Perfect for new builds & larger projects.

Best suited for new builds and extensive renovations, offering superior efficiency for larger spaces and whole-home heating.

  • Lower running costs
  • Excellent for large areas
  • Integrates with existing heating
  • Long-term energy efficiency