1900      Around 1900 A. Heylen and his wife, D. Geerts, opened a shop for glass products and painting equipment in the centre of Herentals.

1950      Demand from the construction sector increased sharply and Heylen-Geerts relocated to a more spacious location at the edge of Herentals city centre.

1981      In 1981 the company relocated to its current site at Herentals industry zone in order to increase production capacity.

1995      1995 saw the introduction of some structural changes and the company began focussing on industrial glass treatment for the construction sector, professional trade and furniture industry.

1996      In 1996 Heylen-Geerts was one of the first independent glass treatment companies to purchase a tempering furnace.

2000      An adjoining site was purchased and 2000 saw the start of building activities on a brand new production hall. In the same year, a new furnace was installed.

2007     HG installed its third new toughning furnace to keep up with demand for safety glass.

NOW   HG has approximately 14,000 m² of workfloor space and specialised top-quality machinery.