The history of the development of windows dates back to the beginning of human settlement. Archaeological finds from approximately 1600 BC has made it clear that the houses already had window openings with mullion and transom divisions. It was in the first century AD when the Romans closed their window openings with transparent materials. Window glass has been known since the 13th century and particular window units have been installed in the holy mosques, churches and cathedrals.

For more than 1000 years, the blacksmith was also involved with window manufacturing. This trade was passed from father to son and great skills and experience was developed. Old windows did not have recognition and distinction that time and it was only during the coming of the wooden materials when it gained the architectural value and importance.

It was in the year 1959, when the first plastic window was made. The profile used that time has no similarity to the current profiles we are using because they attempted to copy the wooden profiles. The carpenters gave plastic windows no chance because they could not even plane the edges. However, they overlooked the fact that the plastic windows could be produced with great accuracy and wide range of geometric profiles.