Lyssand windows are manufactured in accordance with the highest quality standards.

Production facilities, control procedures and the products are in full compliance with the NS-EN ISO 9001:1994 standard and quality documentation is available on request.

The windows have been tested and approved in Norway by NDVK (Norsk Dør og Vinduskontroll), in Germany by Institut für Fenstertechnik, Rosenheim (DIN 18055), and in the UK by MAC-DATA.