UPVC vs Aluminium Windows – Which Is Better?
UPVC and aluminium are two of the most popular choices when it comes to windows. But which is the best for you and your home? This blog aims to help you make the right decision by looking at factors such as price, durability, aesthetics, maintenance, and energy efficiency and by taking your own needs into consideration, you will end up with the most suitable windows for you.
What's the Difference Between UPVC and Aluminium Windows?
In many ways UPVC and aluminium windows are very similar. Both are environmentally friendly, strong, weather resistant, and available in a wide variety of colours. However, there are subtle differences particularly when it comes to price, strength, and style. Looking into these factors in more detail with help to highlight the key differences between each option.
Cost Comparison: UPVC Windows vs Aluminium Windows
In general, aluminium windows are slightly more expensive than UPVC windows. Aluminium windows will cost in the range of £350–£600* whilst UPVC can vary from £250 to £400*. As such, your budget may have an impact on the window type you choose. Likewise, if you have large windows, UPVC may be the most cost-effective option.
Which Offers Better Thermal Efficiency?
Historically, UPVC windows were considered more energy efficient than aluminium windows. However, technology has advanced, and aluminium windows now offer a similar thermal efficiency as UPVC. With thinner frames and more glass, aluminium windows allow more natural sunlight - and therefore warmth into your home. UPVC windows will usually be double- or triple-glazed which helps improve thermal efficiency. Aluminium windows can also be double- or triple-glazed, but this will significantly increase their cost. These are all factors you should consider when thinking about the thermal efficiency of your new windows.
Security & Strength: Are Aluminium Windows Better Than UPVC?
Aluminium windows are considered to be stronger than UPVC. This means they can have slimmer frames and less internal supports than a UPVC window. This makes aluminium windows perfect for rooms with beautiful views or those which require as much natural light as possible.
When it comes to security both types of windows are considered safe and secure. Investing in windows with high quality locking systems - regardless of which material you choose - is also an effective way of increasing security and providing you and your family with peace of mind.
Maintenance & Lifespan
Both aluminium and UPVC are simple and straightforward to maintain. Warm soapy water and a clean cloth is all you need to keep them looking beautiful inside and out.
When it comes to lifespan, aluminium has the edge. These windows are expected to last an average of 45 years, compared to an average lifespan of 20 years for UPVC. So whilst aluminium windows are more expensive, the cost over their lifetime is significantly less due to their longevity.
Style & Finish Options
Aluminium is often considered the most stylish option, but both UPVC and aluminium windows are available in a wide variety of different designs and colours. However, it is worth bearing in mind that aluminium windows are usually supplied in grey or silver as standard and must be powder coated if you decide to opt for an alternative colour. This can be costly, increasing the price of a window by around 10 to 20 percent. Again, these are factors that should be considered before choosing your new windows.
Environmental Impact
Both aluminium and UPVC have excellent environmental credentials. Aluminium can be recycled with minimal processing, whilst UPVC can be recycled up to seven times, with the recycled material being used to make new windows and other UPVC building products. So whether you choose aluminium or UPVC, you can be assured that you have chosen a sustainable window which has minimal environmental impact.
Common Questions About Aluminium vs UPVC Windows
What are the advantages of UPVC?
- Easy to maintain
- Energy efficient
- Cost-effective
- Lightweight
- Secure
- Reduces noise pollution
- Environmentally friendly
What are the advantages of aluminium?
- Long lasting
- Aesthetically attractive
- Minimal frame and more glass
- Strong
- Secure
- Environmentally friendly
What are the disadvantages of UPVC?
- Reduced lifespan
- Thicker frames
- May fade if exposed to high levels of UV
What are the disadvantages of aluminium?
- More expensive
- May require more maintenance
- Slightly less energy efficient
Which Window Type Is Right for You?
The answer to this question will depend on a variety of factors, from the size of your windows to your budget. If you're looking for a sleek, contemporary finish with more glass than frame - and money is no object - then you may wish to opt for aluminium. On the other hand, energy efficiency may be a top priority for you, and you may want to keep your budget low. In this instance, UPVC windows will be the best option. Doing your research, looking at different types of windows, and discussing your requirements with a reputable company will help you make the best choice for you and your home.
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If you're ready to replace your windows and are looking for inspiration, why not take a look at our wide range of windows. Alternatively, give our expert, knowledgeable team a call today on 0800 22 77 77 to have an informal chat about your needs.
* Prices correct at time of publication - How Much Do Aluminium Windows Cost in 2025? | Checkatrade
