Our Organisation

In the 1960s, Deceuninck chose to break new ground in plastics production. The extrusion of PVC granules for the manufacture of profiles for the construction sector was started up.

After successful product introductions in neighbouring France, the Netherlands and the United Kingdom in the early 1970s, the first commercial subsidiary was established in France, with local storage capacity and local offices. This first subsidiary was soon followed by subsidiaries in the United Kingdom and Spain.

On 11 June 1985, Deceuninck's shares were listed on the Brussels stock exchange. Due to booming demand in the mid-1980s, the Group decided to set up local production sites in Roye (France) and Calne (United Kingdom).

During the second half of the 1980s, Deceuninck focused mainly on the vertical integration of its processes including the start of the printing and coating activities.

In the early 1990s, Deceuninck started compounding activities in Diksmuide (Belgium). In the mid-1990s, the Group established sales offices and local warehouses in Poland and the Czech Republic. This was quickly followed by the start of extrusion activities in Poznan (Poland) in 1995.

The first steps into the American market were taken with the acquisition of Acro Extrusions in Wilmington, Delaware in 1995. In 1997, with the acquisition of American Dayton Technologies from the Alcoa Group in Monroe (Ohio), Deceuninck evolved into a leading player in the American market for non-integrated PVC window systems.

At the beginning of the 21st century, Deceuninck decided to take over Ege Profil in Türkiye. The Turkish market had become the second largest market in Europe. In June 2003, the German company Thyssen Polymer was acquired from the ThyssenKrupp Group. The acquisition included a major extrusion plant in Germany and two production sites in the United States.

At the end of 2004, the Group acquired the company Winsa, to strenghten its local presence in Türkiye and support the development of sales in the Middle East and the Maghreb countries in North Africa and Asia.

Deceuninck was a pioneer in the introduction of wood composite products in Western Europe. Solutions for terraces and façades using a specific formula based on PVC where launched under the Twinson brand name.

At the end of 2008, the global financial crisis forced Deceuninck to further adapt its business activities to the new economic reality. In September 2009, Deceuninck implemented a financial restructuring.

From 2010 onwards, the Group continued to expand in the emerging markets of Asia, Africa and Latin America. In 2014, the Turkish listed company Pimas was acquired.

At the beginning of 2011, Deceuninck launched its new vision 'Building a Sustainable Home', based on the pillars Innovation - Ecology - Design. On the site of its existing compounding plant in Diksmuide, Deceuninck further invested in a high-tech recycling plant, with the aim of processing the increasing flow of first-generation windows in a high-quality manner.

In 2017, Deceuninck expanded its product range to include aluminium, in addition to the IQ Aluminium line that already existed in Türkiye.

In 2019, Deceuninck’s newest window series, Elegant, received the prestigious Red Dot Award. This fully recyclable, steelless window and door solution represents the first of many window designs built on Deceuninck’s universal ICOR platform.

In 2024, Deceuninck stopped the production and logistics activities of its German subsidiary, driven by the need to optimize its European production and logistics footprint in order to achieve sustainable growth, improve business performance and ensure reliable supply.

In 2025, the Group acquired 100% ownership of the aluminium joint venture So Easy Holding BV. Since then, the company moved forward as Deceuninck Aluminium to accomplish Deceuninck’s ambition and strategy to include aluminium profiles in its window solutions offering.