Gebr. Gillessen PGmbH

Gebr. Gillessen PGmbH is a family business from Schönberg, Belgium, with locations in Belgium and Luxembourg. Founded in 1909, the company has evolved from a traditional workshop into a modern carpentry operation. It designs and manufactures interior and exterior solutions, including custom-made windows and doors from wood, PVC, and aluminum, joinery and furniture work, conservatories, staircases, as well as garden solutions. The company emphasizes in-house manufacturing and also provides consultation, on-site measurement, planning, and after-sales service.