How much do aluminium windows cost in 2025?

Aluminium windows are a popular choice with homeowners looking for style and substance for their homes. But how much do aluminium windows cost? Find out in this handy cost guide.

Whether you're planning to replace old uPVC windows or upgrade to triple glazing, aluminium windows offer so much in terms of functionality and style.

Keep reading to find out the average aluminium windows cost and the benefits of opting for aluminium.

How much do aluminium windows cost in the UK?

Your required budget will strongly depend on the number of windows you need and the style you choose. But, how much are aluminium windows (UK)?

The average UK cost of aluminium windows is £475.

Top-end designs cost around £600 but thankfully most aluminium windows will come in well under this price.

How much does an aluminium window cost vs uPVC?

If you're comparing your options, chances are you'll be looking at the cost of aluminium windows vs uPVC windows.

For those on a more modest budget, uPVC windows may be the best choice with an average cost of £325.

At a slightly higher price point, the average cost for aluminium windows is around £475.

While uPVC windows are usually cheaper, aluminium windows are typically considered to be of a higher quality.

Both aluminium and uPVC are durable and long-lasting if properly looked after. Although aluminium tends to need less maintenance.

One of the most popular features of aluminium windows is their thin frames. uPVC options don’t usually offer the same style of design.

Cost of aluminium sliding windows

The average cost of aluminium sliding windows is £665.

Sliding windows can be a great choice in terms of visual and practical benefits. They are easy to open as well as being energy efficient.

Combined with aluminium frames, sliding windows can greatly improve the external appearance of your home.

Looking to install sliding doors? Check out our guide to aluminium sliding door costs.

Aluminium windows price calculator

You may be looking for an online aluminium window cost calculator, but it's hard to calculate. Any calculation would still be an estimation.

Have the £350 - £600for an aluminium window and installation in your mind as a rough ballpark.

Speak to multiple trusted tradespeople to get a variety of quotes and see if they all line up.

There are many designs, finishes, and sizes to consider, each of which has different prices.

Other factors around the installation could add to the cost, particularly if the windows are in hard-to-reach areas and need scaffolding.

What's the cost of coloured aluminium windows?

Aluminium windows are often supplied grey/silver as standard, but you can usually choose from a wide range of powder-coated colours, for an extra cost.

Many aluminium window suppliers will allow you to choose from any RAL colour, thanks to the colouring process.

As a general rule, coloured aluminium windows cost around 10–20% more than standard options.

Black aluminium window prices

Black tends to be one of the most popular colours of aluminium windows in the UK. This is due to its stylish appearance, which fits with many property styles.

If a standard aluminium window costs around £475 then the average black aluminium window price will be in the region of £525 - £570.

Common types of aluminium windows

Once you have made the smart decision to install aluminium windows in your home, you will need to consider the type of windows that are right for you.

Some types are safer for children and others are more secure (casement windows are generally considered the safest and most secure).

Below are the most common varieties of aluminium windows:

• Sliding

• Sash

• Tilt and turn

• Casement

• Panoramic

• Bi-fold

Wondering which type of windows you have or want for your home? Check out our complete guide to window types and features.

Benefits of aluminium windows

Aluminium windows have a whole range of excellent benefits. From aesthetic to practical, these windows have many advantages over other materials.

The main pros of choosing aluminium windows include:

• Aluminium is an eco-friendly material

• These windows have a modern and stylish appearance

• You can choose from a variety of colours and styles

• Aluminium windows are durable and designed to last

• You can look forward to reduced energy bills due to the extra light and heat entering your home

• These windows are more affordable than timber options

• Aluminium windows are lightweight and available with thin frames

• These frames are resistant to warping and corrosion

Factors affecting aluminium window prices

Not every aluminium window is created equal. There are a range of factors that influence the amount you'll pay for your aluminium windows, including:

• Window style: From sash to panoramic, each style or type of window will have a different price

• Size of the window: Larger windows have more materials (glass and aluminium) so will be more expensive than smaller windows

• Number of windows: You'll usually be quoted a price depending on how many windows you need – the more windows you have the higher the cost

• Ease of access: Difficult to access homes and windows will mean increased labour times and therefore higher labour costs

• Double or triple glazing: Choosing double-glazing or triple-glazed windows will increase the price you pay

• Added security features: Child-proof locks, window sensors, and tempered glass are all additional security features that can be added at an extra cost

• Type of glass: You can usually pay to upgrade the glass in your aluminium windows to tempered, tinted, or safety glass

Guarantees and warranties for aluminium windows

When buying aluminium windows, you'll find that most reputable suppliers will offer a variety of guarantees and/or warranties.

Always check what cover your aluminium windows will have before buying them.

The most common guarantees and warranties include:

• Standard manufacturer's warranty (which will usually cover the whole window or just the frame)

• Whole window or frame guarantee (often for 10-25 years, depending on the supplier)

• Sealed unit guarantee (covers if the sealed unit fails, usually for 10 years or the lifetime of the window)

• Discolouration guarantee (some manufacturers offer protection on the coating of coloured window frames for 10–25 years)

Get quotes for aluminium windows

The exact cost of your aluminium windows will depend on how many you're ordering, their shape, size, and the complexity of installation.

As with any home improvement project, we always recommend getting quotes from multiple local window suppliers.

That way you can be confident you're being quoted fair and competitive prices for your aluminium windows.

To get quotes from the best local window specialists near you, enter your postcode in our free search tool below.

Useful aluminium window checklist

• The benefits of choosing aluminium windows include extra light, durability, and energy savings

• The average cost of aluminium windows will usually fall into the range of £350 - £600

• Factors such as size, style, and type of glazing can all affect the cost of aluminium windows

• UPVC windows are generally cheaper and lower quality than aluminium windows

• It’s not wise to attempt aluminium window installation without a trained professional

Contact or pay a trade through Checkatrade and you’re covered by our 12-month guarantee of up to £1,000*

* Eligibility and T&Cs apply

FAQs

Are aluminium windows expensive?

Aluminium windows in the UK will typically cost you somewhere in the region of £350 - £600. As such, they are considered more expensive than uPVC windows.

The exact cost will depend on the number and specification of the aluminium windows you choose.

What is the price of an aluminium window today?

Like most materials, the aluminium window frames price list will vary over time. To get the most accurate, up-to-date costs, speak to local window suppliers in your area.

They'll be able to give you information about the options available and what aluminium windows will cost you today.

Which is cheaper: uPVC or aluminium windows?

Double-glazed aluminium windows are generally more expensive than uPVC options. However, the exact price will depend on the specifications of the windows you choose.

The price difference reflects the visual and practical advantages of aluminium window frames.

Can I install aluminium windows myself?

Installing windows, even with lightweight aluminium frames, is very difficult. Glass is heavy and windows are cumbersome to work with.

That's not to mention the dangers of working at heights. It’s much safer to leave window installation to professionals.

Even if you are proficient in DIY and carpentry, there is a high risk that any windows not properly installed could let in moisture.

This will then lead to dampness and mould. There is also the possibility that the windows could fall out if not safely installed.

For safety and peace of mind, we recommend hiring a professional.

To find a local, reputable, tradesperson in your area and get a personalised aluminium window installation quote use our free search feature.

What other options are there for aluminium windows?

The most common materials that are used for window frames, apart from aluminium, are uPVC and timber.