What are the benefits of aluminium windows vs uPVC?
Wondering whether aluminium or uPVC windows are the right choice for your home? In this post, we break down the key differences and benefits of each option – from style…
What are the benefits of aluminium windows vs uPVC?
Wondering whether aluminium or uPVC windows are the right choice for your home? In this post, we break down the key differences and benefits of each option – from style and durability to energy efficiency and long term value. Whether you are planning a full renovation, replacing old windows, or working on an extension, we’ll help you choose the best windows for your property and your budget.
Aluminium vs uPVC: what you need to know first
Choosing the right windows for your home is a big decision. Whether you are replacing ageing frames or planning an extension, it is natural to wonder whether aluminium or uPVC windows are the better option.
Both materials offer great performance, but they come with different strengths. At House of Glass, we supply and install high quality aluminium windows from Cortizo and uPVC windows from Eurocell – so we can give you an honest view of both.
What is the difference between aluminium and uPVC windows?
uPVC (unplasticised polyvinyl chloride) is a type of durable plastic that has been widely used in British homes since the 1980s. It is low maintenance, weather resistant, and one of the most affordable options on the market.
Aluminium, on the other hand, is a sleek, slimline frame option that is stronger and longer lasting than uPVC. Thanks to modern thermal break technology, aluminium windows are now just as energy efficient too.
Still comparing glazing performance? You might also like our blog on which are the best energy efficient windows.
Benefits of aluminium windows
- Slim sightlines – aluminium allows for larger panes of glass and more natural light
- Modern appearance – ideal for contemporary builds or minimalist renovations
- Strong and durable – does not warp, crack, or discolour over time
- Low maintenance – needs only occasional cleaning to stay looking great
- Sustainable – aluminium is fully recyclable and has a long lifespan
- Perfect for large or custom windows – strength allows for oversized panes or unusual shapes
They also pair beautifully with other contemporary features such as aluminium bifold doors or modern conservatories.
Benefits of uPVC windows
- Cost effective – typically more budget friendly than aluminium
- Energy efficient – great thermal performance, especially with triple glazing
- Style options – available in a wide range of colours and finishes
- Traditional appeal – often a better match for period homes or conservation areas
- Low maintenance – no repainting or treatments required
You can also choose uPVC in flush casement styles, timber effect finishes, or even as sliding sash windows for added character.
Need help deciding? Our post on why choose double glazing may help you weigh the options further.
Which is better – aluminium or uPVC?
There is no single right answer – it depends on your home, budget, and personal style.
If you are aiming for a modern, minimalist look and want slim, high performance frames that will last for decades, aluminium windows are a smart investment.
If you are working to a tighter budget or live in a more traditional style home, uPVC windows offer excellent value without compromising on performance.
Both options can be fitted with acoustic glazing, solar control glass, or triple glazing for extra comfort and efficiency.
Frequently asked questions
Do aluminium windows make your house colder?
Not anymore. Modern aluminium windows use thermal break technology to prevent heat loss, making them just as effective as uPVC for insulation.
How long do aluminium windows last?
Aluminium frames typically last 30 to 40 years or more with minimal maintenance.
Are uPVC windows still a good option in 2025?
Yes – uPVC windows have improved massively in recent years and remain one of the best value options on the market.
Can I use aluminium windows in a period home?
Absolutely. With the right colour and glazing choice, aluminium windows can work beautifully in both contemporary and heritage properties.
Ready to compare options?
We install both aluminium and uPVC windows across Kent, South East London, and surrounding areas. All work is carried out by our in house team, backed by a ten year insurance guarantee and covered by FENSA certification.
No pushy sales, same day quotes, and honest advice from a local, family run team.
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