The company was established in 1991. Its main activity is manufacture and mounting of wooden, aluminium and PVC joinery with insulating glass and security roller doors. It offers also a great variety of other products in order to ensure a rich choice to its clients. A lot of the used materials are produced in Germany, Belgium and other EU countries which results in quality of the end product, equal or excelling that in many European countries.
GSG has been certificated ISO 9001:2000 by LRQA.
