Founded in 2000 in Kocaeli / Değirmendere, GüngörPen is one of the leading companies in the sector with 25 years of experience in glass balconies, folding glass balcony systems, sliding glass balconies, winter gardens, guillotine systems, pergolas, PVC windows, PVC doors, shutters, roller shutters, and aluminum systems. With its high-quality production approach and innovative perspective, it ensures high customer satisfaction in both residential and commercial projects.

In 2022, GüngörPen relocated to its new headquarters in Başiskele / Kocaeli, which features the largest showroom area in the Marmara Region, expanding its service capacity with a strong infrastructure. By adding leading brands such as Winsa and Albert Genau to its portfolio, it offers modern solutions to both individual and corporate clients with a wide range of products including glass balconies, folding glass balcony systems, sliding glass balconies, guillotine systems, winter gardens, pergola systems, and PVC window/door systems.