Casement Windows

Discover premium aluminium casement windows from Atlas. Our industry-leading systems are the first of their kind for thermally broken frames, giving you optimum energy efficiency without compromising on aesthetics. The new quick glaze bead makes for simple installation, with upgrades available to the highest security standards.

Discover casement windows

Tilt and turn windows

User friendly and energy efficient, our tilt and turn windows feature trickle vents to encourage airflow. Security is guaranteed with Sobinco Gearing and Mila Hero handles, together with a low sight line for slimmer profiles. Thanks to our quick glaze bead, they’re also simple to install.

See more Tilt and Turn Windows

HERITAGE WINDOWS

For a traditional look blended with modern manufacturing methods, these made to measure Heritage windows will meet your unique design needs. Their versatile ‘steel look’ pairs well with both contemporary and period properties, complemented by a low U value when used with triple-glazed units.

Heritage Windows

Aluminium window designs

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For both commercial and house aluminium windows, choose Atlas. Our innovative designs meet the highest standards in security and energy efficiency, giving you the option to customise and upgrade based on your needs. From quick installation to robust thermal and weather performance, quality is guaranteed with every product.

Customisable options for aluminium window frames

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Personalise your Casement, Tilt & Turn, or Heritage aluminium windows with a wide range of design choices. Select from modern or traditional frame styles, explore a rich palette of single and dual colours, and choose handles to complement your home. Complete your look with double or triple glazing options for enhanced comfort and performance.

Opening Configurations

Select from functional, stylish window openings to suit your space – side hung, top hung fixed bottom, or top hung

STOCK COLOUR OPTIONS

Choose from four stock colours – white, anthracite grey, anthracite grey on white, and black.

SPECIAL COLOUR OPTIONS

Alternatively, select from hundreds of RAL colour options or KL colours for a custom finish.

CASEMENT & Heritage WINDOW Handles

White, black, grey, polished chrome, smooth satin chrome, polished gold offset handles

Tilt and Turn window Handles

Black, white, grey, polished chrome, satin silver and polished gold handles

Trickle Vents

Improving indoor air quality, reducing condensation, and maintaining security and heat efficiency

Designed for faster, easier installation, reducing time on site without compromising quality.

Key specifications

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Our aluminium window systems meet these standards as a minimum, with some products offering upgrades or higher specifications:

• Polyester powder coating
• Double or triple glazing available
• U value up to 1.4w/m2k (double glazed) depending on product
• U Value up to 1.0/m2k (triple glazed) depending on product
• Sightline 67mm-71.5mm
• Frame depth 47mm-70mm
• SH max O/A width 600-864mm
• SH max O/A height 1500-2100mm (top hung 1500, 2100 tilt and turn)
• TH max O/A width 900-1400mm
• TH max O/A height 1500-2100mm

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Frequently asked questions

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Are aluminium windows better than uPVC?

Aluminium window frames offer many benefits over uPVC. A common argument for UPVC is thermal efficiency, as aluminium is generally a conductive material. However, thanks to advanced thermal break technology, all of our bespoke aluminium frames create a barrier between cold and warm air, helping to conserve energy.

While aluminium is generally more expensive than uPVC, it is also more durable and longer-lasting, ideal for inclement weather conditions. This also offers extra security benefits, and our Alitherm products can be upgraded to superior PAS24 for peace of mind.

From a design perspective, aluminium is slimmer and more compact, allowing for simple installation, double or triple glazing, and larger panes. This creates a better finished aesthetic, allowing for more natural light to enter a room.

What is the life expectancy of aluminium windows?

Our contemporary aluminium window frames can last up to 30 years thanks to hardwearing materials and modern manufacturing methods. They can last up to 10 years longer than traditional uPVC window frames.

Can aluminium windows be double-glazed?

Bespoke aluminium windows from Atlas can be double-glazed as standard. Our aluminium window frames come with 28mm double glazing as standard. Our Alitherm range can also be upgraded to 40mm triple glazing if desired.

Can aluminium windows be energy-efficient?

Aluminium frame windows can be energy-efficient. While aluminium is not known for being an insulative material, our thermal break technology creates a barrier between warm air inside and cool air outside. This means that our windows are capable of reaching a Window Energy Rating of B as a minimum, all the way up to A+, depending on the product you choose.

What’s the difference between flush and casement windows?

Flush windows are a style of casement window. The main difference between flush and casement windows comes down to aesthetics. Both are weather-resistant and energy-efficient, but they vary in design.

A casement window is ‘lipped’, which means the parts that can be opened will protrude from the frame. Flush windows, meanwhile, lie flat against the wall. Generally, a flush window is considered more modern, while casement windows are more traditional.

Case refers to how the window opens (hinged at the side and swinging outward), while flush refers to how the sash sits within the frame.

What colour options are available?

All products in our aluminium window frames range come with stock colours – black, white, grey and grey-on-white. You can also choose single or dual KL or RAL colours for a more varied palette, including hundreds of different shades.

Why choose Atlas?

If you’re looking for a handcrafted aluminium window frame, speak to the Atlas team today. We offer one of the UK’s largest ranges of aluminium windows, giving you full flexibility over your designs that we’ll pass on to our trusted installers. Choose from traditional Heritage windows or modern casement windows, allowing you to customise based on your aesthetic, security and energy efficiency needs. You can upgrade your products to the latest colours, triple glazing and highest PAS24 security standards, so the choice is yours. Our aluminium window frames can last for up to 30 years, protecting your property against weather erosion and intruders. Thanks to our partnership with trusted installers, you can get a quote within 24 hours and watch your vision come to life.