At INTERPLAST GROUP we are proud of the quality of our products, the professionalism of our team and the exceptional customer service that we provide. This makes us one of Europe's large and most trusted manufacturers and suppliers of Aluminium and PVCu Windows and Doors. We hold CE and ISO certifications Our state-of-the-art manufacturing facility is located in Sandanski, south-west Bulgaria on the North-South European transportation corridor the E79 motorway, which runs from Miskolc (Hungary) to Thessaloniki (Greece) and is part of the Pan-European Corridor IV. We employ over 100 highly skilled workers in our manufacturing facilities. Our highly-trained team of skilled workers ensure that your robotic-built windows and doors are produced to the highest possible standards. We have a strong presence in many international markets due to our excellent quality and competitive prices.