We specialize in the production of PVC and PVC/ALU windows and doors. All our PVC windows are made from Trocal PVC profiles and have  integrated Winkhaus fittings of proven German quality.

Our product quality and credit rating has been attested with the following certificates:

  • Slovenian Quality (SQ),
  • AA Creditworthiness Rating,
  • Excellent small and medium enterprises (Excellent SME),
  • Our windows and doors are made in accordance with European standards (SIST EN 14351).

Our advantages

We are distinguished by precision manufacturing and compliance with the terms of delivery.
Our customers may choose from many different variations of windows according to their needs, preferences and price. Besides the Bayer 76 window system we can offer the high quality systems Bayer 88 +, Bayer 88+ Aluclip and the patented system Bayer AluFusion as well.

For windows and doors manufacturing we use high quality machines from Germany. The quality of elements integrated into our products has been proven with many certificates.

Our second name is Quality

Bisnode Slovenia awarded Roletarstvo Bayer d.o.o. with internationally recognized Credit worthiness certificate AA awarded to the best companies with high ethical standards, strong ability to meet current payment obligations and quality services or products. The certificate is an evidence of our credibility and reliability. Roletarstvo Bayer d.o.o. belongs among 3% of the top companies with such high credibility in Slovenia.

We hold the certificate Slovenian quality – SQ for manufacturing and installation.

Chamber of Commerce and Industry of Slovenia awarded us with the business performance certificate Excellent SME. Chamber of Commerce and Industry of Slovenia is issuing the certificate Excellent SME in cooperation with the renowned credit rating agency COFACE.

Our products comply with SIST EN 14351.