JK is a provider of in-ground underfloor heating (UFH) systems for residential and commercial buildings. We operate in more than 10 European countries and have been serving the Dutch and German markets for more than 25 years. Our unique installation method uses dustless grinding technology to quickly create precision grooves in the existing screed floor using a specially designed floor grinder. Since the JK grinding method uses a specially constructed industrial diamond grinding disc it can be applied to 99% of all floor surfaces, making it unnecessary to remove or raise the existing screed with this method. Furthermore, it is also possible to easily install the JK underfloor heating system into different floor levels where dry-construction panels such as gypsum are already in place. JK's in-ground UFH™ is a water-based retro-fit underfloor heating system. Our installation method uses patented JK floorgrinders to create 15*15mm channels into existing screed or concrete floors whilst maintaining dustless extraction. Heating pipe is then laid into these channels which sit directly below the floor finish. Highlights include: Affordability: no sub-floor work needed Quick installation: can be completed within a single day, by trained JK installers Suitable for all floor finishes: Tiles / LVT / Engineered Wood Responsive: you can feel the warmth in minutes JK's revolutionary grinding method!