22/11/25

The History of PVC Windows’ Growing Popularity

The rise of PVC windows has been a gradual process — from early experimental models to a mass‑market product. Let’s review the key stages.

Early Experiments (1930s–1950s)

The first plastic windows emerged in the 1950s but initially failed to gain widespread acceptance. The designs were fragile, prone to deformation, and unable to withstand regular loads. In 1954, the German company Trocal launched mass production of PVC window systems, using metal frames coated with soft PVC.

In the 1960s, manufacturers improved the technology:

• they began reinforcing frames with metal and wooden inserts;
• they replaced soft coatings with rigid PVC;
• they adopted the extrusion method (introduced by the Belgian company Deceuninck).

These changes significantly enhanced the strength and durability of the structures.

Surge in Europe and the USA (1970s–1980s)

The energy crises of the 1970s provided a decisive boost to PVC window adoption. Thanks to improved thermal insulation, plastic windows helped substantially reduce building heat loss — a key advantage amid rising energy prices.

By the 1980s, PVC windows held about 10 % of the global window market. In the USA, annual sales reached 14.5 million units by the end of the decade. The market grew particularly fast in Germany and other Western European countries.

Current Trends (2000s–Present)

Today, PVC windows maintain their leading position due to continuous technological advancements:

• Energy efficiency. Multi‑chamber profiles, energy‑saving double‑glazed units (with metal coatings and inert gases inside) are being introduced.
• Eco‑friendliness. Manufacturers are phasing out lead‑based stabilizers, switching to calcium‑zinc compounds, using recycled PVC, and developing recycling programs.
• Innovations. «Smart» windows (integration with smart home systems), self‑cleaning coatings, and switchable transparency glazing units are emerging.
• Design. Demand is growing for coloured and laminated profiles, as well as for windows in non‑standard shapes (arched, round).

Today, PVC windows hold about 47 % of the global window market. In summary, the journey of PVC windows from experimental models to mass‑market products has been driven by technological breakthroughs, economic factors, and shifting consumer preferences. Current trends emphasize energy efficiency, eco‑friendliness, and functionality.