Tetra Door LLC. it is a company that produces steel and fire doors. Our doors are not only perfect for security, but also ideal for decoration. We have TSE –OHSAS 18001, ISO 9001 and ISO 14001 certificates. We have the capacity to produce 30,000 doors per year with our total production area of 4000 m2.
Tetra Door, together with its staff; aims at a strong development, good quality and high standards of products and services. Our goal is to become a symbol of reliability, respectability and continuity for our country, our customers, dealers and our subsidiary industry.
Tetra Door is constantly renewing and improving itself. Our principles are to keep our quality standards high by using the most advanced technology with our experienced staff operating at an international level.
Creating value for our customers and responding to their expectations with quality and stability is our first priority. It is our duty to take care of our products and to be by our customers before and after delivering the order. We see no difference in the size of a task, big or small; each task is equal and important on its own in order to achieve perfection. By insisting on the path to perfection, we are growing every day.
Thanks to fast production and low costs, Tetra Door has expanded its network every day. Our search for a new Sunday at Tetra Door never ends. Everyone who joins our company becomes a family member. We have set high goals that can be achieved only by touching labor, ideas and heart. We want to change the world step by step and contribute to its development!
As Elte Pano, we produce Low Voltage Panels, Medium Voltage Cells and boxes and cabinets made of sheet metal in various specifications in our factory in Istanbul Deri Organized Industrial Zone. We export 70% of the products we produce to our customers in 5 continents of the world.
Our company was founded by Muhammet Yusuf Coşkun and Talha Coşkun in 2004, and has been continuously increasing its business volume over the past period and has become appealing to customers with different sectors and different business models all over the world.
Our main principle is to provide service to our customers with timely delivery, quality products and reasonable price.
The sectors we address are: Electricity Generation and Distribution, Machinery Production, Automation, Renewable Energy, Railway Vehicles, Electricity Contracting and the Construction Sector, especially public housing.