Appearance of the material that makes up an electric heated floor

Looking for a modern way to keep your home warm? Electric underfloor heating offers a sleek solution, delivering cosy comfort right under your feet. But installing it requires some insider knowledge.

In this guide, we'll unravel the steps to setting up this innovative heating system. From initial planning to the hands-on installation, we are here to provide you with all the information you need, ensuring you're well-prepared to create a snug atmosphere in your space.

Prepare to enjoy the warmth of a well-installed electric underfloor heating system. Let's dive in and make your home a haven of comfort!

Key takeaways

  • Electric underfloor heating offers consistent warmth throughout rooms, eliminating cold spots and providing a cosy environment.
  • During summer, underfloor heating is impractical for cooling and may lead to inefficiencies and higher energy consumption, making separate air conditioning units advisable for cooling needs.
  • Turning off underfloor heating during warmer months saves energy and allows for maintenance checks, enhancing system efficiency and longevity.
  • Underfloor heating provides uniform heat distribution, frees up wall space, offers energy-efficient controls, operates silently, and reduces allergens, but entails a high initial investment, potential maintenance challenges, and may have a slower response time compared to other heating methods.

Understanding Electric Underfloor Heating

Electric underfloor heating is a method where heating elements are placed under the floor to emit heat upward. Using electrical cables or mats, this system warms rooms from the ground, providing a comfortable and energy-efficient way to maintain cosy indoor temperatures.

Water vs. Electric Systems

Water-based underfloor heating circulates heated water through pipes from a boiler, which is efficient for larger areas but complex to install. Electric systems use cables or mats that directly generate heat, which is suitable for smaller spaces or targeted heating.

Water systems provide steady warmth ideal for whole-house heating, while electric systems offer quick, precise heating for specific zones. Water setups require more planning, while electric ones offer simpler installation but might have higher operating costs.

Your choice should consider space, heating needs, and installation feasibility.

Installation Planning and Preparation

Illustration of the material of an electric heated floor located on a plan

Preparing for the installation of an electric underfloor heating system involves specific steps tailored to this setup:

Assess Compatibility

Check flooring materials for suitability with electric underfloor heating. Evaluate the insulation and room layout to optimise heat distribution.

Calculate Heat Needs

Determine required heat output per room based on dimensions, insulation, and ceiling height. This guides heating element placement.

Design Layout

Create a detailed plan for cable or mat placement, thermostat locations, and control systems. This blueprint streamlines installation and ensures uniform heating.

Compliance Check

Verify local regulations and obtain permits for safe and compliant installation.

Choose Quality Materials

Source reliable heating elements, controls, and insulation meeting system specifications and industry standards.

Prepare the Floor

Ensure a clean, level surface free of obstructions to facilitate a smooth installation process.

Seek Expert Advice

Consider consulting heating professionals for valuable insights and efficient installation techniques specific to electric underfloor heating systems.

Tools and Materials

Material of electric heated floor Thermomat TM

Gathering the right tools and materials for an electric underfloor heating system installation is essential:

Tools Needed

  • Cable or mat cutter: Ensures precise cutting of heating elements.
  • Insulation board cutter: Cuts insulation boards accurately.
  • Adhesive spreader: Ensures even application of adhesive for element placement.
  • Multimeter: Essential for testing electrical connections.
  • Tape measure and marking tools: Ensures accurate placement of heating elements.

Materials Required

  • Heating cables or mats: High-quality elements suitable for electric systems.
  • Insulation boards: Reduces heat loss and optimises efficiency.
  • Adhesive or fixing tape: Secures heating elements in place.
  • Thermostats and controls: Regulates temperature and system operation.

Safety Gear

  • Insulated gloves: Protects hands while handling heating elements.
  • Safety goggles: Shields eyes during installation.
  • Knee pads: Provide comfort during floor work.

Installation Steps

Step-by-step installation guide

It’s now time to start the installation of your electric underfloor heating. Here are the steps you must follow:


Prepare the Space

Thoroughly cleaning the floor surface is essential to ensure the heating system's efficiency. Remove any debris, dust, or existing flooring materials. Ensure the surface is completely dry and free from any moisture, as this can affect the system's performance. Additionally, check the floor's levelness, addressing any uneven areas or bumps that could affect the heating element's placement and coverage.


Plan the Layout

Careful planning of the heating system layout is crucial. Consider the room's dimensions, the location of furniture or fixtures, and any specific heating requirements for different areas within the space. This planning phase involves deciding the best positioning for the heating cables or mats, ensuring even coverage and adequate heat distribution across the floor.


Install Insulation (If Needed)

Installing insulation boards underneath the heating elements helps minimise heat loss, ensuring the heat generated by the system effectively radiates upward. These boards also contribute to the overall energy efficiency of the underfloor heating system, providing a more comfortable and economical heating solution.


Position Heating Elements

Laying electric underfloor heating elements, whether it's the cables or mats, requires precision. Follow the pre-planned layout, making sure the elements don’t overlap or cross each other, as this could lead to uneven heating or potential system issues. Carefully fitting electric underfloor heating and securing the elements in place using suitable fixing tape or adhesive will ensure they remain flat and undisturbed during the installation process.


Connect Heating Elements

Properly connecting the heating elements is critical for the system's functionality. Adhere strictly to the manufacturer's guidelines for connecting the elements to the thermostat and power supply. Ensure all electrical connections are secure and follow safety protocols when handling electrical components.


Test the System

Before covering the heating elements, conduct thorough electrical tests using a multimeter. This step is crucial to identify any faults or irregularities in the system. Test for continuity, resistance, and insulation resistance to ensure the system operates safely and efficiently.


Cover Heating Elements

Once the electrical tests confirm the system's integrity, proceed to cover the heating elements. Apply the appropriate floor finish, such as tile adhesive, self-levelling compound, or other approved coverings. Ensure the covering material is compatible with the underfloor heating system and won't damage the heating elements.


Install Controls and Thermostat

Mount the thermostat in a suitable location, preferably where it can sense the room's temperature accurately without being affected by external factors. Connect the thermostat to the heating system, following the manufacturer's instructions precisely. Program the thermostat according to the user's preferences and usage patterns.


Final Checks

After completing the installation, conduct a final test of the entire system to ensure it functions as expected. Check for uniform heating throughout the designated areas and verify that the thermostat controls the system effectively.

Electric Underfloor Heating Installation Troubleshooting and Maintenance

Installation diagram of an electric heated floor detailed by sections

When setting up electric underfloor heating, you're ensuring a cosy home, but issues can arise. Here's a guide to troubleshooting and maintenance:

Installation Check

  • Power supply: Confirm the power source. Circuit breakers or blown fuses can cause problems.
  • Thermostat: Ensure the settings are accurate. Incorrect settings can disrupt the system.
  • Heating elements: Examine for damage. Use a multimeter to check continuity.

Maintenance Tips

  • Regular cleaning: Keep the floor free from dust and debris for efficient heat transfer.
  • Inspect for damage: Check heating elements and wiring for wear or corrosion.
  • Thermostat calibration: Verify accuracy using a separate thermometer if needed.

Common Issues and Solutions

  • Uneven heating: Check insulation and heating elements for damage.
  • Thermostat malfunctions: Inspect for loose connections and consider a replacement if needed.
  • Cold spots: Address poor insulation or obstructions.

Cost Considerations for Electric Underfloor Heating Installation

Illustration of a room showing an installed electric heated floor

When considering the cost of installing electric underfloor heating, several factors come into play:

Initial Investment

The cost of installing electric underfloor heating encompasses various elements. It involves purchasing equipment such as heating mats or cables, a thermostat, and other necessary installation accessories. These components collectively contribute to the upfront expenditure. Additionally, labour expenses for professional installation, if opted for, should be factored into the initial investment. Accurately estimating both material costs and potential installation fees is essential to create a realistic budget.

Room Size and Layout

The size and layout of the room significantly impact the overall cost of installing electric underfloor heating. Larger spaces require more heating elements to ensure uniform heat distribution across the area, thereby increasing material costs. Moreover, complex room layouts or irregularly shaped spaces might demand more intricate installation methods, potentially affecting both material and labour expenses. Understanding the specific requirements of the space helps in estimating costs more accurately.

Insulation Requirements

Adequate insulation beneath the electric underfloor heating system is crucial for its efficiency. While the system itself contributes to heating, proper insulation below it helps retain and distribute heat effectively. Depending on the existing insulation, additional insulation might be required, which can influence the overall cost of installation. Investing in sufficient insulation is imperative for optimising the system's performance and potentially reducing long-term heating expenses.

Thermostat and Control System

The choice of thermostat and control system can impact initial costs. Basic thermostats might be more budget-friendly initially, but opting for advanced systems with features like programmability, zoning capabilities, and energy-efficient settings can increase the upfront investment. However, these advanced systems offer greater control over heating, potentially leading to more significant savings in the long run through optimised energy usage and enhanced comfort levels.

Operating Costs

Assessing the system's operational expenses is vital. Electric underfloor heating systems consume electricity, and the associated operating costs depend on the system's efficiency and the space's insulation quality. While these systems can be cost-effective in well-insulated areas, they might incur higher operational expenses in poorly insulated spaces due to heat loss. Understanding the impact on utility bills helps in estimating long-term operational costs accurately.


While electric underfloor heating systems generally entail low maintenance costs, accounting for occasional repairs or part replacements is prudent. Including potential maintenance expenses in the budget ensures the system's longevity and continued efficient operation. Proper upkeep helps in avoiding major issues that could result in higher repair costs later on.

DIY vs. Professional Installation

Picture of an artist painting an electric heated floor

There are various considerations for both DIY and professional installation of electric underfloor heating systems.

DIY InstallationProfessional Installation

Attempting a DIY installation for electric underfloor heating systems appeals to homeowners seeking cost savings on labour. While it seems budget-friendly, DIY requires a level of expertise in electrical work and flooring installations. Ensuring precise measurements, proper placement of heating elements, and correct wiring are crucial. Mistakes might lead to inefficiencies or safety hazards, necessitating costly repairs.

Choosing professional installation offers distinct advantages. Certified installers bring expertise, experience, and specialised tools, ensuring precise setup and compliance with safety standards. They accurately assess spaces, handle intricate installations in complex layouts, and mitigate unforeseen challenges. Although it might incur higher initial costs, professional workmanship ensures reliability, often with warranties for added reassurance.


Deciding between DIY and professional installation involves weighing skills, complexity, and risk tolerance. DIY suits those with technical know-how and confidence but requires strict adherence to guidelines. Professional installation ensures proper setup, compliance, and reliability, catering to those seeking expertise and peace of mind. Evaluating personal skills and installation complexity guides the decision.

Advantages and Disadvantages of Electric Underfloor Heating

Electric heated floor poured with concrete screed

Before you start installation, ensure that electric underfloor heating is the one for you by going through the advantages and disadvantages:


  • Uniform heat distribution: Electric underfloor heating ensures consistent warmth throughout the room, eliminating cold spots and providing a cosy environment.
  • Space efficiency: Installed beneath the floor, it frees up wall space, offering more design flexibility and unobstructed room layout options.
  • Energy-efficient controls: Modern systems offer programmable thermostats and zoning capabilities, enabling precise temperature regulation and potential energy savings.
  • Silent operation: Unlike traditional heating systems, it operates silently, avoiding any disruptive noise.
  • Allergen reduction: By minimising air circulation, it reduces airborne allergens, benefiting individuals with allergies.


  • High initial investment: The upfront cost of installation can be relatively high due to equipment and installation expenses.
  • Operational costs: Electricity prices influence ongoing operational expenses, especially in poorly insulated spaces.
  • Complex installation: Professional expertise might be necessary for installation, particularly when retrofitting existing floors, adding to the overall cost.
  • Response time: Compared to some heating methods, electric systems might have a slower response time, affecting the time it takes to reach desired temperatures.
  • Maintenance challenges: While generally low maintenance, repairs or faults can be intricate and may require professional assistance.


Electric underfloor heating promises unparalleled comfort, yet its installation demands meticulous attention. Whether considering its warmth or space-saving advantages, success lies in understanding its complexities.

Entrusting the process to professionals ensures a seamless experience. With Next Level's installation services, expect precision and reliability for a cosy system. Embrace the warmth hassle-free.

Contact Next Level today and elevate your home's comfort with expert installation.

Professional team 'Next Level' specializing in the installation of underfloor heating systems and smooth concrete screed