Over the past 25 years JK (Janssen & Krop) has acquired more than one million square meters of knowledge and experience of in-ground underfloor heating in many European countries. Which are the Netherlands, Belgium, Luxembourg, Germany, France, Switzerland, Italy, Turkey, Scotland, England, Wales, Northern Ireland, Republic of Ireland and Iceland. A customised solution whether to renovate, refurbish or start a new building project in residential or commercial buildings.

Corporation - JK companies [operate in more than 10 countries with over 100 JK floorgrinders, and 200.000 references]
- Netherlands | JK vloerverwarming B.V.
- Germany | JK FuBbodenheizung GmbH
- Belgium | JK vloerverwarming BVBA
- United Kingdom | JK floorheating Ltd.
- Ireland | JK floorheating Limited
- Turkey | JK Yerden Isitma Sti.

At JK good service is paramount. The installation is conducted by highly-skilled employees who are individually hired and trained by JK.

> Revolutionary grinding method invented by JK in 1994!

JK's in-ground UFH system is a certified water-based retro-fit underfloor heating system. Our installation method uses the patented JK floorgrinder to create 16 x 16 mm 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. The JK grinding method uses a specially constructed industrial diamond grinding making it unnecessary to remove or raise the existing screed.

JK System Highlights include:
- Affordability: no sub-floor work needed
- Quick installation: can be completed in a single day, by trained JK installers
- Suitable for all floor finishes: Tiles / LVT / Engineered Wood, etc.
- Responsive: you can feel the warmth in minutes
- Efficient: Underfloor heating delivers comfortable, uniformed warmth whilst consuming less energy
- Primary Heating: no need for radiators
- Original: Genuine and invented by JK

We understand People, Heat and Energy