Van Ruysdael’s launch of its insulating single-glazing solution in 2003 signalled a breakthrough in window insulation.


Established in 1978 as a joinery works, the company worked closely in the 1980s with various organisations – including the Netherlands Organisation for Applied Scientific Research (TNO), the former Department for the Preservation of Monuments and Historic Buildings (RDMZ; currently known as the National Service for Cultural Heritage (RCE)), the World Wildlife Fund (WNF), IVAM Research and Consultancy on Sustainability, the former Novem (currently the NL Agency of the Ministry of Economic Affairs, Agriculture and Innovation) and Friends of the Earth Netherlands – on the manufacture of windows/window frames made of sustainable European wood. In the early 1990s, the company introduced the first classic sash window solutions to perform a level rivalling that of windows used in newly developed properties. In 2002, Van Ruysdael gained notoriety with a classic insulating single-glazing solution which is just 9mm thick. It was the first, thinnest and most sustainable insulating glazing without a cavity. Although this already represented a breakthrough in window insulation, in 2011, we succeeded in making our insulating glazing another 35% thinner and lighter. This new 5.8‑mm solution offers – nearly – limitless application possibilities.

sea change in thinking

Since the 1980s, Van Ruysdael has worked diligently to facilitate the preservation of cultural heritage through significant contributions for the benefit of people and the environment. Since the 1990s, Van Ruysdael has developed a unique vision of insulation that we call ‘the new approach to insulation’. This idea – like all revolutionary ideas – was initially met with disbelief and resistance, but this ultimately resulted in a generally accepted sea change in thinking. As the premier expert in this field, Van Ruysdael has been asked to share its knowledge with a growing number of leading institutions. Our latest goal is to get the industry involved in putting this knowledge to work for us.


Van Ruysdael already plays a direct and essential role as regards the insulation and preservation of original windows in palaces, government buildings in The Hague and Paris, museums, schools, hotels, offices and residential properties. In 2007, the Syntens innovation network – an initiative of the Dutch Ministry of Economic Affairs – named Van Ruysdael one of the most innovative companies. In addition, the Dutch Ministry of Foreign Affairs designated Van Ruysdael as a ‘Dutch Master’ and made this known throughout the world. Our products have also received recognition for ‘good industrial design’ and have been nominated for the Dutch National Energy Award. In 2011 Van Ruysdael received an award on “sustainable Tuesday” as one of the most innovative concepts on sustainability.
Van Ruysdael’s success can be attributed to founder Michel Trompert who in his role as creator, idealist and progressive thinker personifies the brand. 


In 2011, Unesco asked Van Ruysdael to share its knowledge in order to help preserve our global cultural heritage in accordance with our environmental goals. 
We weren’t surprised by the request, as Van Ruysdael gears its advice to the needs of each particular project in order to maintain the appeal of existing buildings and make significant contributions to an attractive, healthy living environment for you and for many others.

Van Ruysdael | history