We have had Oknalux install triple glazing on our primary “picture” windows, sliding doors and French door opening onto our courtyard. The thermal and sound reducing properties are immediately noticeable. From quote to measurement to installation, the Oknalux team are very professional and their communication along every step of the order and installation process was second to none. We would not hesitate to recommend Oknalux. In fact, given our experience with this product and the team, we are now considering Oknalux replace more of our windows and glass doors.