Our corporate association

Apart from Cornils GmbH there are two companies that are 100% owned by the Cornils family.

MTG Metall-Technik GmbH is “Your partner for metal construction”, planning, manufacturing and installing glass façades, windows and doors, balconies and projecting roofs. Fire protection doors and F-30/ F-90 in steel and aluminium. Further information at

Lindhorst GmbH is concerned with planning, sale and installation of exclusive winter gardens, aluminium facades and special constructions related to house enhancement.