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Updating the Classic

Here at Connaught Windows, we believe our customers deserve the very best. As a result, we do not manufacture products that are inferior in class or standard. You can rest assured that you’ll be bringing the very best to your project, designed to keep your customers warm, safe and comfortable throughout the year without compromising on style.

Aluminium casement windows (open out) are available in a variety of styles and designs to suit domestic replacement windows, new builds and light commercial applications. Various frame and sash options are available and are internally glazed. The slim sight lines of the aluminium profiles are a firm favourite with architects and homeowners alike and can provide beautiful views while still being certified to PAS24 specifications.

If you are interested in our aluminium casement windows, you can request a quote today. Our online tool is easy to use and makes getting a price quick and simple.

Features & Benefits

Frame Options

The Alitherm 400 casement window is available in chamfered or flush profile. The frame is 70mm deep and is glazed internally using a choice of either a reversible adaptor or balanced sashes in each fixture. The window system is suitable for Residential & Light Commercial purposes.

Hardware Options

Our stylish inline locking handle is available in white, gold, satin silver, chrome and black. For a traditional look ask for our monkey tail handle. The standard friction stays can be upgraded to fire escape hinges, easy clean and restricted hinges. Alternatively, any of these friction hinges can be coupled with a restrictor catch. High security espag locking is fitted as standard.


We offer a range of security specifications and options. Our aluminum casement windows have been fully tested and certified to PAS24, which is not only suitable for new build and new extension projects, these windows will bring peace of mind to the most security conscious.


Choose from an extensive range of standard RAL colours to enhance the look of any type of property or make your project that extra bit special and stand out, choose from the Smarts Sensation, Cotswold & Alchemy ranges. Available in full colour or dual colour options.

Energy Rating

Our fully glazed windows achieve an A rating. The profile section is thermally broken, using a polyamide thermal barrier, that enhances its thermal performance.


An extensive range of accessories are available to complete your window installation requirements. These include 85mm, 135mm, 150mm, 190mm and 225mm cills, 20mm and 35mm frame extensions. With a 18mm or 25mm joiner and a flush joiner option for the Flush Window, along with a 90° corner post and variable angle bay assembly, joining frames together couldn’t be easier. Trickle vents can only be fitted in a 35mm frame extension, with a color matched trickle vent option for standard RAL colours.

Thermally Efficient

Our windows boast a British Standard Kitemarked system, featuring an extended polyamide thermal break. This creates a barrier between the cold air outside and the warm air inside, to ensure an impressive energy rating when it is used with our double or triple glazing. Our aluminium windows will reduce heat loss, lowering energy use across the course of the year.

Aluminium Casement Window Prices

Highly Secure

To minimise the chance of any intrusion, we also provide high security multi-point locks and handles. These mechanisms are highly effective and guarantee that our aluminium casement windows will retain their rigid and durable properties, even under strain. Ultimately, we want to offer you safety and security with our products.

Aluminium Casement Window costs

Professional Service

We also realise the enormous importance of providing a quality service, as well as quality products. We are well versed when it comes to manufacturing our aluminium windows, which means we can offer you maximum quality with minimum stress. We always deliver exceptional products to exact specifications, so you won’t have to settle for less. You can contact our team today at 01202 525212.

Aluminium casement windows near Dorset

Colour Options

Smart Sensations Colours

View our range of stunning & aluminium window colours & finished, all designed to offer your customers a flawless finish.

View Aluminium Colour Options

uPVC Windows uPVC Windows
uPVC Doors uPVC Doors
Composite Doors Composite Doors
Conservatories Conservatories
Aluminium Aluminium
Glass Glass
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