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Based in Cheddar, Majestic Designs (UK) Ltd is one of Somerset's highly recommended double glazing specialists.

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A Brief History of uPVC Windows in the UK

18th September 2023 |

uPVC Windows

What is uPVC?

The manufacturing process of uPVC (unplasticised polyvinyl chloride) uses sodium chloride through electrolysis, producing chlorine gas. PVC is short for polyvinyl chloride – a chemical blend of chlorine, hydrogen, and carbon. The U stands for unplasticised, meaning it hasn’t softened with the addition of plasticisers (chemicals). UV and heat stabiliser additives are included, making the material suitable for windows. uPVC windows don’t require much maintenance, they won’t warp, and will last for many years.

When were uPVC windows introduced in the UK? Black uPVC casement windows

Double glazing first entered the consumer space in the 1970s, when windows and doors were made with aluminium. In the 1980s, uPVC began to take over aluminium as it was a more resistant material and offered better versatility throughout the year. The adaptable nature of uPVC was used to create externally glazed windows. Moulded uPVC panels became available, offering homeowners a ‘pretend wood’ style. This meant uPVC provided practical benefits as well as adding style to the home.

By the 1990s, uPVC windows became common in many UK households. By 2000, most window manufacturers had begun installing internally glazed windows with softer frames and improved security options. Many homeowners of high-value homes wanted theirs to look like timber, but with the maintenance-free aspect of a uPVC window. Due to technological advancements and manufacturing, these are now produced in a range of styles and colours. Homeowners can now have replacement windows without compromising on aesthetics.

The Latest uPVC Window Technology

Since their adoption, uPVC windows have come a long way. Due to improved manufacturing methods, higher quality materials, and expert engineering techniques, the modern uPVC window can achieve exceptional levels of performance, without compromising on style.

They are now the most frequently installed type of window in Somerset and across the UK. You can choose from uPVC casement windows to sash windows, in a range of colours and styles to suit your aesthetic vision. uPVC windows can now be installed in any property, from a Victorian terrace to a country cottage. The Building Research Establishment (BRE) estimates that the average lifespan of a uPVC window is 35 years.

At Majestic Designs, we implement double glazing into all our uPVC windows in our state-of-the-art factories in Cheddar, Somerset. We are proud of our uPVC windows and can confirm their excellent thermal, acoustic, and aesthetic benefits for your home, ensuring the temperature in your home stays comfortable throughout the year, whilst still looking attractive.

uPVC Windows – A Popular Type of WindowWhite UPVC casement Window

For years, many people thought wood was the most superior insulating material for window frames. But due to the construction of high quality, long-lasting windows that support optimal energy efficiency, uPVC has become a popular alternative. Along with the latest double-glazing technology, and secure locking systems, uPVC windows provide excellent energy efficiency and security.

The Benefits of Modern uPVC Windows

Modern uPVC windows are an energy-efficient and cost-effective solution for your home. Refurbishing your home with modern uPVC windows can transform your living space. Majestic Designs engineer uPVC windows with innovative double glazing, improving energy efficiency and reducing noise pollution. Double glazing started being widely produced in the UK during the 1970s and 1980s. However, since that time, technology and manufacturing processes have come a long way.

Double glazing prevents heat from transferring from one side of the window to the other. In the winter months, it keeps your home insulated and warm, and in the summer months the heat is kept outside. There are many benefits to installing these windows, which is why they are so popular.

Durable and Cost-Effective

Energy efficient uPVC windows are durable and cost-effective, without needing much maintenance. At Majestic Designs, we engineer all our windows with a multi-point locking system, to ensure security and safety for your home. They do not expand or contract under various climates, even in the harsher weather we get in Somerset. These windows are weather resistant and retain their colour and finish, ensuring they last for many years. Many modern uPVC windows have a working lifespan of decades rather than a few years. Many older ones faded from exposure to UV and sunlight, whereas modern ones are designed to be fade-resistant.


With modern manufacturing processes, you can select from a range of colours and styles to suit the aesthetics of your home. If you are looking to refurbish your home and create a beautiful appearance, uPVC windows are a great option. Styles range from casement windows which are a more traditional window design to sash windows, which open vertically and are associated with period properties. If you have a more modern home and want a window to fit this design, tilt and turn windows provide homeowners with dual operation.

Where once, homeowners had a limited choice, now there is a huge range. You can even select dual colours, so the inside is white, and the outside is your choice of colour. This is excellent for a minimalist home, where you want to add a pop of colour to the exterior. Many homeowners like to add a splash of colour to match the aesthetics of the rest of the home, improving kerb appeal.

Low Maintenance White uPVC Georgian Windows

uPVC windows do not require much maintenance or cleaning. You can clean them with a soft damp cloth every few months to clear away dust and dirt. Other than that, a splash of water on the outer window frame will maintain these windows. Having low maintenance windows saves you time on upkeep and makes it easy to look after them, ensuring longevity. Low maintenance also helps busy homeowners or those with restricted mobility. Timber requires a new coat of paint every few years, whereas modern uPVC windows only require the occasional clean.

Better Energy Efficiency

Modern uPVC windows have enhanced thermal and acoustic insulation due to strips of hollow uPVC that utilise an intricate series of thermal breaks. These trap heat and slow its escape from a building, helping keep homes warmer for longer and saving you money on heating bills. At Majestic Designs, all our windows are A+14 rated, meaning they offer an exceptional thermal and acoustic performance.

uPVC Windows with Majestic Designs

The history of uPVC windows in the UK goes back to the 1980s, and since that time manufacturing processes and technology have made dramatic advancements. At Majestic Designs, we are committed to helping you transform your home for optimal energy efficiency, advanced security, and attractive aesthetics. Our modern uPVC windows offer many benefits to homeowners whilst transforming living spaces. Our windows are a cost-effective solution to your home, without needing to compromise on style. You can choose from a range of colours and styles to suit your home, whether you live in a traditional country cottage or a modern home.

If you want to refurbish your home, we can help. We have a fully employed team of experienced lead installers, FENSA accredited and MTC registered. Book an appointment or give us a call to have an initial conversation with our knowledgeable team. They have an excellent reputation for craftmanship and will be happy to help with all your enquiries.


With over 3,400 independent reviews on Fairtrades.co.uk, Majestic Designs are proud to have earned an above 9.48/10 rating in customer satisfaction Click to find out more

Customer Testimonials

“The fitting team were a credit. Clean, efficient and pleasant to know. Site left in a very clean state. Thank you.”

“All round excellent service. Used you in our previous home and was delighted with both installations you have done for us. Thank you.”

“I cannot fault anything & best thing I ever did. I am relieved & happy that I have attractive doors & windows. Thank you.”

“Thank you!”

Local area installations

Serving clients across Somerset and the South West

Majestic Designs install quality double glazing products throughout Somerset. From Taunton to Yeovil and Weston-super-Mare to Wells; our insistence on quality installations and outstanding customer care remains the same. With our factories and showroom in Cheddar, we are conveniently located in the heart of Somerset, with easy access to the surrounding towns and villages. As part of the local community, we are dedicated to improving the lives of all our customers and by employing a local workforce we are investing in the future prosperity of the area.

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