What is in-ground underfloor heating?
In-ground underfloor heating is a heating system where the pipes are embedded directly into the subfloor, typically through precision-milled grooves. These pipes carry warm water, radiating heat upwards to gently warm the floor surface and the surrounding room. Unlike traditional systems that require additional layers of screed or insulation, in-ground underfloor heating minimises floor height build-up, offering a clean, efficient, and unobtrusive heating solution. It’s ideal for both new builds and renovations, delivering consistent warmth with minimal disruption.
JK Floorheating’s in-ground underfloor heating system uses an innovative approach to ensure seamless integration into your existing floor structure, providing a discreet and effective heating solution with no floor build-up.

How the System Is Installed
Our installation begins with the use of the patented JK® floorgrinder, designed to create precise 15x16mm channels in your current floor—whether it’s sand-cement screed, concrete, or anhydrite. This advanced machinery operates with an integrated industrial vacuum system, ensuring a virtually dust-free environment throughout the process.
Once the channels are prepared, our durable JK® flextube heating pipes are securely embedded into these grooves, lying just beneath the floor surface. To enhance the system’s performance, we apply JK® flexseal, a specially developed backfill that seals the channels, eliminating air gaps and creating an optimal base for your chosen floor finish.
Unique Principles and Benefits
- No Floor Height Impact
Our in-ground method eliminates the need for additional floor layers, preserving your room’s original dimensions without floor build-up. - Rapid Installation
Many of our projects are completed within a single working day, minimising disruption to your daily routine. - Energy Efficiency
Operating at low water temperatures, our system is compatible with modern, sustainable heat sources, leading to substantial energy savings. - Versatile Floor Compatibility
Whether you prefer tiles, natural stone, wood, or vinyl, our system seamlessly integrates with a wide range of floor finishes, providing complete design freedom. - Health and Safety
By reducing airborne dust circulation and eliminating the need for radiators, our system promotes a cleaner, safer living environment.

Choose JK Floorheating for a state-of-the-art underfloor heating solution that combines innovation, efficiency, and comfort—tailored to meet the unique needs of your space.