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Underfloor Heating Cables

Electric Underfloor Heating Cables offer an energy-efficient floor heating solution for new-build and renovation projects.

DCM-PRO heating cable

DCM-PRO System

The DCM-PRO Heated Uncoupling System features a heating cable and an accompanying membrane which the cable is fitted in to. The membrane acts as an uncoupling layer which can help prevent damage to the floor finish caused by subfloor movement.

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loose wire

Loose Wire System

DCM-PRO cable can be installed as Loose Wire with fixing strips. This is a flexible option for irregularly shaped rooms, areas with a lot of permanent fixtures, or nailed hardwood installations. It can easily be maneuvered around room fixtures and corners.

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In-Slab Cable

The In-Slab Cable is an electric underfloor heating cable that is ideal for installing within slabbed subfloors in new build projects. It uses a slower heat-up and cool-down time than other systems, making it suitable for using in rooms which are in constant use.

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underfloor heating cables

What are Electric Underfloor Heating Cables?

Heating Cables are electric floor heating wires that can be installed directly onto or into the subfloor, without the need for a mat backing. They offer great flexibility for layout design as they can be fitted around fixed objects and architectural features, making them the perfect floor heating solution for bathrooms and irregularly shaped rooms.

The spacing of the cables can be altered depending on the required heat output (W/ft2). Warmup’s range of Heating Cables include the Loose Wire System and the In-Slab Cable System. The DCM-PRO Heated Uncoupling System features a Heating Cable with an accompanying anti-fracture membrane.


– No waste. Get the perfect length of heating cable for your project

– Flexible spacing. Space the cable to suit your needs

– Fast installation. Can be installed without the need for specialist tools

– Low-profile. Little-to-no impact on floor build-up

– Energy-efficient. Uses less energy than traditional heating systems

– Suitable for all projects and floor types

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Which Cable is Best for me?

No matter the floor finish, subfloor type or size of you project, there is an electric floor heating cable suitable for your requirements.

Floor Finish and Subfloor Type

The Loose Wire System is ideal for use with stone and ceramic tile flooring and can be installed onto Insulation Boards over concrete subfloors.

If you are utilizing a concrete floor slab as part of a construction project, the In-Slab Heating Cable has been specifically designed to be installed within this subfloor type and can be used with a wide range of floor finishes.

The DCM-PRO System is the perfect heater to use with tiled floor finishes. It is a heated uncoupling system that utilizes an anti-fracture membrane in which to fit the heating cable.

minimal style white bathroom

Floor Build-up & Room Type

Heating Cables offer a low-profile floor heating solution that won’t substantially raise floor levels. The Loose Wire system is the thinnest heating cable on the market, at just 1.8mm, making it an ‘invisible’ heating system that can be installed within a layer of levelling compound or tile adhesive. The In-Slab Cable has a slightly thicker width of 3/8″ (10mm) but is installed directly into a concrete subfloor so has no impact on floor build-up while the DCM-PRO features a system depth of 5.5mm.

All heating cables should be installed alongside suitable insulation materials which enhance the energy-efficiency of the system. Heating Cables are recommended for irregularly shaped rooms and rooms with multiple fixtures such as bathrooms. You can lay the cables down onto the subfloor in whatever layout is most suitable for your space, winding them around corners and fixed objects like baths and shower trays with ease. If you wish to install floor heating in a more regular-shaped room with open floor spaces, our electric floor Heating Mats may offer a better solution for your needs.

Cable Installation

Underfloor Heating Cable Installation

Heating Cables facilitate quick installation times and can be installed with no need for specialist tools. The In-Slab Cable must be laid a minimum of 50mm deep within a screed floor construction. The cable must be secured to the subfloor using the accompanying metal fixing strips which hold the cable in place before a cementitious screed is poured over.

To install the Loose Wire System simply prime the subfloor and mark out your cable layout before placing the cable where needed, taping down into position as you work. Always make sure to keep a minimum distance of 50mm between the cable runs. Loose Wire can be covered with a thin layer of levelling compound or tile adhesive before covering with your chosen floor finish.

Due to its self-adhesive backing, the DCM-PRO’s uncoupling membrane can be attached to the subfloor rapidly and easily. The membrane’s castellations act as a pathway for the DCM-PRO Heating Cable, simply push the cable into position with your hands, keeping a minimum distance of 60mm between cable runs. Once you are happy with the cable layout, simply cover with self-levelling compound or tile adhesive.

Frequently Asked Questions

What are Underfloor Heating Cables?

Underfloor heating cables are electrical wires that generate heat when an electric current passes through them. They are installed beneath the floor surface to provide radiant heating for a room.

How do Underfloor Heating Cables Work?

Underfloor heating cables work by converting electrical energy into heat with electromagnetic waves. The cables are typically laid out in a specific pattern beneath the floor and when electricity flows through them, they generate heat, warming the floor and the objects above, including walls and ceilings.

Are Underfloor Heating Cables Suitable for All Floor Types?

Yes. Underfloor heating cable(s) cable heating systems are compatible with a variety of floor coverings including tile, stone, laminate, and some types of engineered wood if the floor covering does not exceed an R-Value greater than 1. However, the floor covering itself may not be suitable over radiant floor heat, therefore, it is highly recommended to check with the floor covering manufacturer before installing.

Can Underfloor Heating Cables be Installed in Any Room?

Yes, underfloor heating can be installed in any type of room, though the heater type that is best suited for the room may differ depending on the finished floor type and if it is a wet room. Remember that any permanent fixtures in the room cannot be heated under.

Are Underfloor Heating Cables Safe?

Yes, if installed in accordance with our installation instructions. All of Warmup’s heating cable(s) are approved by UL (Underwriters Laboratories) for your safety.

How Long do Underfloor Heating Cables Last?

As long as they are installed properly and in accordance with our installation manuals, heating cables can last for many decades, even past the warranty period.

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