Career
Theys started his own glass studio in 1987, where he began by making stained glass windows. Later, he went to Murano in Italy to learn the traditional techniques of glass art He currently has a large studio in Leuven, near Brussels, called "Belgian Glass Styling".
Their son, Daan Theys is following in their footsteps.
Theys is best known for creating the largest stained glass window in Belgium. lieutenant may be seen at the church of "Onze Lieve Vrouw van Gedurige Bijstand" in Haacht.
The glass-in-concrete measures 22 by 7 meters.