Aluminium Double Glazed Windows

Aluminium windows are lightweight but very strong, with a long lifespan.

By installing new aluminium windows, you can reduce your energy bills by up to £175 a year.

To compare prices of aluminium windows, enter your postcode above.

Aluminium Windows Guide

Aluminium windows are another form of double glazing designed to keep your home warm, secure and insulated. Their aluminium frames are strong but allow more light into your home due to their slim style.

These aluminium frames also have added style features in that they can be painted in a range of 200 different colours from the RAL guide (a colour system used in paints and varnishes).

Aluminium is an environmentally friendly material and can be recycled. Aluminium double glazing is also reputed to have a long life expectancy due to the hard-wearing and durable qualities of the material.

Aluminium casement windows

aluminium casement window

A casement window is attached to its frame by hinges and normally at the side, opening inwards. These frames can be made in aluminium and are a popular choice out of the range of aluminium double glazing you can install.

Aluminium casement windows are normally opened with levers or handles and you can increase their security with a multi-point steel locking systems. These windows are also beaded internally to ensure burglars cannot remove glass from the outside.

Although people see the benefits of aluminium casement windows in terms of style, security and energy efficiency, many still buy uPVC casement windows. uPVC is typically cheaper than aluminium and also has similar energy and security benefits as well as being durable.

How much do aluminium windows cost?

Aluminium is currently one of the most expensive type of double glazing. The average cost for four aluminium double glazed windows is between £2,445 and £2,835.

The table below shows examples of average costs according to the number of aluminium windows required:

Examples of average costs according to the number of aluminium windows required:

Type of aluminium window
Average cost for 4 windows
Average cost for 9 windows
Average cost for 15 windows
Aluminium casement
£2,445 - £2, 835
£5,470 - £6,215
£9,355 - £10,130

See also:

Compare Aluminium Window Prices In Your Area

Who are they suitable for?

Aluminium double glazing is particularly suitable if you live in a modern home and want stylish window design.They are also a good choice for those needing to replace windows with unusual shapes and those that want to add more light to their home.

They are also good for the environmentally conscious as they are made from sustainable and recyclable materials.

Aluminium double glazing is less suitable if you live in a traditional, older home. For example, anything pre-1930 might not suit the modern look that these windows have.

If you live in a listed building, as it’s illegal to replace original windows with modern double glazing without planning permission, aluminium windows will not be for you. In this case, secondary glazing is a good option.

What style are aluminium windows available in?

UK double glazing companies like Anglian and Everest produce aluminium windows in casement style. Their aluminium frames can be painted in a range of different colours to suit your property and you can have different colours for the interior and exterior of the frame.

Although typically, aluminium windows suit a more modern home, Everest has created a range which includes internal georgian bars, leaded and coloured glass designs. This might be a good option for those in period homes that want a more traditional looking solution.

Which companies offer aluminium windows?

The table below shows leading nationwide installers who offer aluminium windows. Local companies in your area will also offer aluminium windows too so you should always compare between local and nationwide installers.

Aluminium windows
Wooden windows
uPVC windows
Crystal Windows
Manchester Window Factory
Weather Seal

See also:

  • Best double glazing companies

  • What are the advantages and disadvantages?

    Advantages of aluminium windows

    Aluminium windows boast many advantages, particularly in their style and design. They are preferred by architects designing modern homes given their slim frames, access to light and flexibility in colour choice. They can also be moulded to replace windows with unusual shapes.

    There are environmental and energy efficiency advantages to aluminium windows made from recyclable materials and providing good insulation for your home. They also reduce noise pollution from outside.

    Functionally, aluminium windows are strong and resilient. They are weather resistant, durable and are said to last longer than uPVC windows. Aluminium windows also have a reputation for being highly secure.

    Disadvantages of aluminium windows

    Aluminium windows have some disadvantages compared to uPVC or timber windows when it comes to insulation. As aluminium is good at conducting heat it means it doesn’t insulate the home or hold heat in as well as other materials. This can cause condensation or frost appearing inside the windows in cold temperatures. They are also at a higher risk of corrosion, particularly if the window includes steel parts.

    Aluminium windows are not ideal for older properties as their modern style may look out of place with the rest of the building. Equally, for listed buildings and those in a conservation area, you will not be able to install double glazing without planning permission.

    Compared to uPVC windows, aluminium windows tend to come in at a higher price point.

    What are the other options to aluminium windows?

    In addition to aluminium, the most common options for double glazing window materials are uPVC or timber.

    uPVC (or PVCu) is a popular choice for homeowners given that it is typically cheaper than aluminium or timber windows. They require very little maintenance, are easy to keep clean and are energy efficient.

    A disadvantage of these windows is that uPVC is a weaker material and therefore require slightly thicker frames to hold the glass pane in place.

    Timber windows are popular due to their more traditional and classic look. They are a good choice for period properties as they reflect the older style of historic design. Wood is also an effective natural insulator, keeping the warmth in during winter.

    Timber is typically the most expensive material choice and also requires more maintenance than aluminium and uPVC over its lifetime.

    What do I need to know about warranties for aluminium windows?

    When you are shopping around for your new aluminium windows, it’s important to ask each supplier what type of warranty they offer and if it’s included it in the quote.

    There are different types of warranty to be aware of and their lengths will vary across supplier so check with each exactly what you are getting.

    Most leading double glazing companies offer the following guarantees:

    Whole window guarantee

    This is a typical manufacturer’s warranty for the window. The standard length of a guarantee for aluminium windows is anywhere between 10 - 25 years.

    Sealed unit guarantee

    This guarantee protects the sealed gap in the window and means if you spot certain issues including fog or condensation, the company should repair or replace the panes for you. Warranty lengths vary between companies, from 10 years to a lifetime guarantee.

    Some companies also offer other guarantees, it’s worth asking your window supplier whether they provide guarantees for the following:

    Discolouration guarantee

    Offered against the colour of the frames and sometimes the aluminium itself. Length of terms vary, for example between 10 - 25 years.

    Window frame guarantee

    Similar to the above guarantee, though this applies more to the aluminium frames themselves. Length varies between 10 - 25 years.

    Compare Aluminium Window Prices In Your Area

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