Apertures are all those elements that can be used in the outdoor walls of a building and can set up the exterior and interior part of the building itself. The apertures can be categorised in three main categories: Balcony doors, Windows and Entrance doors. The construction safety, the demand quality, the customer needs and the overall aesthetics of the appearance have resulted in designing complete solutions in the field of apertures. This has become possible thanks to technology that combines pvc and aluminum profiles, special compartments, operational mechanisms, low emissivity glass and insulation materials.