Installation materials such as glue and grout can be returned within 3 months of delivery or collection. To do this, it is best to create a return document via My Impermo. Then you can pick up the materials at a pickup point of your choice. Do keep in mind the opening hours. The pickup points in Sint-Truiden and Antwerp are open on Tuesday, Thursday and Saturday. In the other pickup points you can visit on Wednesdays and Saturdays, always from 9am - 5: 30pm.