We are a family company with more than 50 years of experience in the field of joinery.
Our vision is to become the most successful and innovative company in our profession. We are focused on the Slovenian and foreign markets, where we aim to expand with existing and new products. We always adapt to the wishes and needs of our customers.
All of our employees believe in the philosophy of the company and are aware of the responsibilities they are entrusted with. They know that their good work contributes to the excellence of the product and the ultimate customer satisfaction.
Innovation and team work are key to the success of our company, so we are ready to listen to every member of the company.
The added value that our company brings on the market and our mission is our program of controlled fittings. Our program is based on high quality non-series production. Window profiles can be adapted to the details of the installation on the building and to the wishes of customers and architects. Consequently, each project is unique, and can rarely be found on any other object.
In cooperation with the most influential architects, we have so far equipped facilities that have received the highest awards in the field of architecture at home and abroad.


MIZARSTVO KOŠAK d.o.o., Ljubljana
Štajerska cesta 63, 1231 Ljubljana – Črnuče
Tel.: 01 5373 181
E-mail: info@mizarstvo-kosak.si