Surprising Facts About  UPVC Windows You Might Not Know!

What are UPVC windows made of? (Hint: Not Plastic!)

A common misconception is that UPVC (unplasticised polyvinyl chloride) is simply plastic. But here’s the twist—it’s actually made primarily from salt! This unique composition makes it incredibly durable, weather-resistant, and fire-retardant, making it an excellent choice for windows and doors.

Are UPVC windows environmentally friendly?

Absolutely! Here’s why:

✅  Long-Lasting & Durable – UPVC windows can last 20+ years, reducing waste.

✅  100% Recyclable – Even at the end of their life, UPVC frames can be reused and repurposed.

✅  Energy-Efficient – Their superior insulation helps keep your home warmer in winter and cooler in summer, cutting down on energy use and lowering your carbon footprint.

Do UPVC windows fade or turn yellow over time?

This is one of the biggest myths about uPVC! While older materials used to discolour, modern uPVC technology ensures your windows stay looking fresh for years. High-quality uPVC windows are treated with UV-resistant coatings, meaning they won’t fade, warp, or lose their colour over time.

Can you install UPVC windows in a listed building?

Surprisingly, yes—often you can! Many listed buildings require sympathetic restorations, and thanks to advances in design, UPVC windows can now mimic traditional timber frames while offering modern energy efficiency and security. However, you’ll need to check with your local authority before making any changes to a listed property.