It is very gratifying that seele GmbH and seele cover are tested successfully in the certification process of DIN EN ISO 9001: 2015. This standard specifies requirements for a quality management system. The national and internationally recognized standard in quality management proves the sustainable and future-orientated development of seele. Besides this, certification activities on environment and energy standards have been certified. Every project of seele, the premium façade constructor, is unique. Therefore it is more important that processes at seele group meet current standards. With these certifications, seele is very well positioned to meet future requirements of efficiency and effectiveness.