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How Much Do Aluminium Windows Cost in 2024?

Written By:

Reviewed By:

Leonardo David

Updated on

Add style with aluminum frames

If you plan to install double or triple glazing, aluminium windows are one of your top choices. Aluminium frames have a longer lifespan than uPVC frames, while being more affordable than timber windows. They also have a contemporary style that fits easily into many modern homes.

When installing new windows, you want to make sure you get the best value for your money. Ideally, your new windows should be energy efficient and durable, while having a fair price. We’ve put together a complete guide to aluminium windows in the UK, to help you make the right decision.

  • Aluminium windows can last for around 45 years, while having minimal maintenance needs.
  • Regular aluminium frames are less efficient that uPVC and timber frames, since the material is a heat conductor.
  • However, you can find modern aluminium frames that include thermal breaks and insulation to improve their efficiency.
  • Aluminium casement windows cost around £744 – £1,147 each, according to the UK Federation of Master Builders.

Aluminium windows have pros and cons, and it’s important to understand what they offer and if they meet your needs. Here we discuss their costs and technical features, while providing some buying tips.

How Much Do Aluminium Windows Cost?

Aluminium windows are around 25% more expensive than uPVC windows according to Everest, a leading glazing provider in the UK. However, their actual installed costs can be around 60-70% higher in some cases. Aluminium has a more complex manufacturing process, but it also provides greater strength and durability.

Casement windows are the most affordable type, and you can expect to pay £744-£1,147 per window if you choose aluminium frames. As you might expect, prices are higher if you choose other types of windows with more complex frames.

Here are some typical installed costs of aluminium windows, considering three frame types and window sizes. Keep in mind these are average prices to be used as reference – fitting costs represent up to 60% of the total price, and they can vary widely depending on installation difficulty and your location.

Aluminium Window SizeCasement Sash Tilt & Turn
600mm x 900mm£1,000£1,500£1,250
900mm x 1,200mm£1,150£1,725£1,438
1,200mm x 1,200mm£1,250£1,875£1,563
*Typical prices for casement windows are from the Federation of Master Builders. According to Everest, sash frames are around 50% more expensive, while tilt & turn frames are 25% more expensive.

Double glazing costs can be divided into four main categories:

  • Frame – Frames are typically the most expensive part of new windows. They must be cut to fit an existing opening, fitted well, and sealed to prevent air leakage.
  • Glass – Glazing costs will vary depending on your choice of standard glass, low-E glass or other coatings.
  • Fitting – The labour costs associated with window installations are very unpredictable. They vary widely depending on installation difficulty, and they can represent up to 60% of total costs.
  • Energy Efficiency Features – Window manufacturers offer energy saving measures such as frame insulation and glass coatings. As you might expect, windows with more energy-saving measures are more expensive.

Aluminium Frames vs Other Frame Materials

Aluminium frames are more expensive than uPVC frames, but more affordable than timber frames. Here you can see how aluminium casement windows compare with uPVC and timber in terms of installed cost:

Window Material600 x 900 mm900 x 1200 mm1200 x 1200 mm
UPVC  £500£580£620
Aluminium  £1,000£1,150£1,250
Wood  £1,500£1,700£1,850

Aluminium windows are significantly more expensive than uPVC windows: you can expect to pay around 25-70% more depending on the brand and design. However, aluminium windows have become popular among architects, creating a modern look and while having a longer lifespan than uPVC frames. They also have much simpler maintenance needs than timber windows.

Now that you know how much aluminium frames are likely to cost, you’re probably want to know more about their energy efficiency.

Energy Efficiency of Aluminium Windows

Many homeowners buy replacement windows to improve energy efficiency and save on space heating and cooling. Unfortunately, aluminium is a heat-conducting material – this means that traditional aluminium windows are not an efficient option. However, many window manufacturers add design features that help prevent heat loss, improving the efficiency of their aluminium frames:

  • Thermal breaks
  • Frame insulation
  • Multi-compartment frames

Not all aluminium windows offer these features, but you can easily check their efficiency by looking up their Window Energy Rating (WER).

WER Rating – The WER can be found on many windows, ranging from E (least efficient) to A++ (most efficient). British law mandates that you cannot install windows with a WER of less than C. However, most aluminium windows range from C to A.

U-Value – The U-value measures heat transfer rates across windows and other building elements. A low U-value indicates that the window transfers less heat to the exterior, which makes it more efficient. On the other hand, a high U-value means the window is more conductive and less effective for keeping heat indoors.

Pros and Cons of Aluminium Windows

Aluminium frames offer pros and cons compared with other materials, and you should consider them when choosing replacement windows for your home:

Pros of Aluminium Windows

  • Aluminium windows and doors are lightweight and durable.
  • Aluminium frames are strong, which makes them suitable for large windows.
  • Minimal care requirements.
  • Available in dozens of colours and styles.
  • Average lifespan of 45+ years.
  • Very secure and compatible with 3-point locking systems.

Cons of Aluminium Windows

  • More expensive than some other window options.
  • Not available in every style.
  • Less energy efficient than the cheaper uPVC frames.
  • They don’t add the same value as wood frames.

In most cases, the only real drawbacks of aluminium windows are costing more than uPVC and not having the same thermal resistance. However, many window manufacturers now include thermal breaks and insulation as a standard practice.

Styles and Colours

Aluminium frames have a significant advantage over timber and uPVC: they are easy to powder coat and finish. As a result, many brands offer anywhere from 20 to several hundred different frame colours, including natural wood and whitewash styles. Thanks to their design flexibility, aluminium windows are suitable for homes of many architectural styles.

You can generally purchase aluminium frames in casement, sash, tilt & turn and French styles. Other styles may be available depending on the provider.

Who Offers Aluminium Windows?

While aluminium windows are a popular choice, they are less common than timber and uPVC windows. This means you may have fewer choice when comparing installers. Among the top five double glazing installers in the UK, only three offer aluminium windows.

Installer EverestAnglianFirst Home
CR SmithEvander
Aluminium Frames Available?YESYESNONOYES
Frame Types55644

In short, while you can find aluminium frames, they are less common than other options. This also means you may have trouble finding an experienced installer in some locations. Aluminium windows are available from Anglian, Everest and Evander – three of the best double glazing installers in the UK. However, you may also be able to get them from qualified local installers.

Getting a Good Deal on Aluminium Windows

Aluminium windows have a longer payback period than uPVC windows, since they have more expensive frames and a lower efficiency. However, aluminium windows can pay themselves off if you take the time to do your research, compare options and find a cost-effective solution:

  • Shop around and compare offers from multiple window installers:
  • Be well prepared before going into a sales meeting: know how much you should be paying and don’t accept higher offers.
  • Avoid high-pressure sales tactics. Anyone offering a same-day deal is trying to charge you a higher price.
  • Choose windows for quality and durability: look for providers who offer at least a 10-year warranty.
  • Look for quality window installers with a proven track record and effective customer service.

Ideally, you should look for aluminium windows that offer durability at a fair price, while being able to pay themselves off with energy savings.

If you’re ready to compare aluminium window options for your home, consider our free comparison tool. We can help you to find quotes from the top installers in your area, making sure you save money.

How does it work? When you send us your information, we request competitive quotes from 5-star rated installers. We send you the three best offers, lowering your double glazing costs by up to 37.5%.

Written By

Ollie Smith Photo

Ollie Smith

Ollie is the director of Ecopreneurist, with a string of successful publishing brands under his belt, he aims to make the world a better place by showcasing only the best, unbiased and reliable content on the web!

Reviewed By

Leonardo David Photo

Leonardo David

Leonardo David is an electromechanical engineer, MBA, energy consultant and technical writer. He has also been writing articles about energy and engineering topics since 2015.

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