UPVC (unplasticized polyvinyl chloride) has been used for doors and windows since the mid-20th century. Its popularity as a building material has grown significantly over the years due to its durability, low maintenance, and energy efficiency.

UPVC was first developed in the 1930s as a replacement for rubber. It was initially used for a variety of applications, including pipes and gaskets, but it was not until the 1950s that it began to be used for windows and doors. The first UPVC windows were introduced in Germany and were initially used as a substitute for wood in areas where timber was scarce.

UPVC windows and doors quickly gained popularity due to their low cost and low maintenance requirements. They were also more energy-efficient than traditional wooden windows, as they provided better insulation and reduced heat loss.

In the 1980s, UPVC windows and doors became popular in the UK and other European countries. They were initially used for new construction projects, but they were soon being used to replace older, single-glazed windows in existing homes.

Today, UPVC doors and windows are widely used in both residential and commercial buildings around the world. They are available in a wide range of styles and finishes to suit different design preferences and are known for their durability, low maintenance, and energy efficiency.

There are a variety of UPVC doors and windows available to suit different needs and preferences. Some common types of UPVC doors and windows include:

1. Casement windows: These windows are hinged on one side and open outward, similar to a door. They are a popular choice for their versatility and can be used in a variety of settings.
2. Sliding windows: These windows have sashes that slide horizontally along a track, allowing them to be opened and closed easily. They are a good choice for areas with limited space.
3. Awning windows: These windows are hinged at the top and open outward, similar to an awning. They are often used in combination with other windows and are a good choice for ventilation.
4. Bay windows: These windows are made up of a combination of three windows that project out from the wall of a building. They are a popular choice for their distinctive look and can add a sense of space to a room.
5. French doors: These doors have two hinged panels that open outward and are often used as a main entrance to a home. They can also be used as patio doors.
6. Sliding patio doors: These doors have two or more panels that slide horizontally along a track, allowing them to be opened and closed easily. They are a popular choice for providing access to outdoor spaces.
7. Bi-fold doors: These doors are made up of a series of panels that fold together when opened, similar to a concertina. They are a popular choice for providing access to outdoor spaces and can be used as room dividers.

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