Aluminium Windows & Doors


Aluminium Bi-Fold Doors

Aluminium bi-folding doors transform your home and the way you live your life. Relax in stylish open plan living areas or enjoy a stunning panoramic view from your bedroom.


Aluminium Patio Doors

Aluminium patio doors give optimum thermal and weather performance keeping your home warm and comfortable whatever the weather.


Aluminium Windows

Beautiful Aluminium windows will complement your home. Designed for optimal thermal efficiency, they are strong, durable and offer a host of style and performance.



ALUK is an international designer and engineer of aluminium building systems, providing a complete range of window, door and curtain walling systems across the UK and the world.

Our systems are suitable for both commercial and residential applications and offer high performance and function with modern design for an attractive, stylish and durable finish.

At AluK we believe collaboration is King. It is why we are proud of the partnerships we have built with Fabricators, Installers, Architects and Contractors throughout the UK and beyond.



Optio 58BW casement

Strong, secure, superior.

Built to the highest UK standards, this effective and high performance solution offers clean lines and advanced functionality. Available with a range of customisable options, casement windows are the perfect choice for both traditional and contemporary residential designs.

77IW Open-In Window

The new 77IW (Open-in) window system is designed to meet the most demanding performance requirements, including thermal, weathering and security – ideal for any building, whether refurbishment or new build, high rise or low rise.

Optio 58BW TBT tilt-before-turn

Innovative, versatile, intelligent.

Offering exceptional child safety and seamless operation, our tilt before turn windows are an ever-popular choice with homeowners. Made from high performance aluminium these sustainable systems are inherently strong and lightweight, making them ideal for both commercial and residential designs.

77IWE Open-Out Window

The new 77IWE (Open-out) window system is designed to meet the most demanding performance requirements, including thermal, weathering and security – ideal for any building, whether refurbishment or new build, high rise or low rise.

Optio 58BW TSR top-swing-reversible

Smart, stylish, trusted.

Easy to clean and effortless to operate, our ever popular top swing reverse windows increase thermal performance, improve safety and exceed modern building design performance standards. Ideal for use in multi-storey structures, the windows open an impressive 180°, allowing completely pain-free pane cleaning from the safety and comfort of indoors.

Optio 58BW ST steel replacement

Minimal, durable, secure.

The look of steel, the benefits of aluminium. A win-win for designers and homeowners alike. Featuring industry leading build quality, our 58BW ST aluminium windows are an ideal replacement for existing steel windows. In addition to impressive high thermal and acoustic performance, the design also replicates the minimal sight lines associated with steel windows, whilst providing superior performance and security. Yet another win-win.


Optio 58BD Entrance Door

Popular, reliable, secure.

Available in a wide range of styles and formats, our stylish aluminium Entrance door system is suitable for both light and medium-duty use. Designed with security and flexibility front of mind, every door in the range is available in single and double configurations making them ideal for almost any application.

GT55 TB Commercial Door

The GT55 TB aluminium door system provides the ultimate combination of security and performance, it also includes thermal break profiles for improved performance. These aluminium doors are ideal for a range of heavy duty commercial and public sector applications including offices, hospitals, schools and multi-residential buildings.

GT55 NI Commercial Door

The GT55 NI door provides the ultimate in security and is suited to high traffic environments where no insulation is required. Available in standard, PAS 24 and LPS1175 (SR2) options, the GT55 NI aluminium door system is one of the most secure swing doors available on the market. The system has been fully tested with full glazing, no use of steel reinforced panels, as well as with semi-glazing and can be integrated with our ground floor treatment systems.

folding & sliding doors


Befold Doors

Luminia F82 bi-fold door

Innovation, not imitation.

The Luminia F82 bi-fold door has been designed with style and performance front of mind, whilst continuing to push the industry forward by delivering unrivalled innovation and installation simplicity.

Optio BSF70 bi-fold door

Welcoming, stunning, practical.

An intelligent combination of form and function, our highly versatile and market-leading Bi-fold sliding door system gives you maximum control over the style and operation of the doors.

Multiple panels can be added to accommodate the design specifications of your building, with the option to open in or out as required. The system also boasts a unique flush line pop-out handle that allows for square flush stacking panels when doors are fully open.

Sliding Doors

Infinium sliding door

Infinium brings together indoor and outdoor living spaces in exquisite harmony. Free-flowing spaces are created thanks to stunningly slim sightlines that bathe every surface with natural light. Uninterrupted panoramic landscapes provide complete escapism, without need of escape. While seamlessly integrated floor-to-ceiling glazing reflects the clarity of thought behind every inspired design decision.

Luminia SC156 sliding door

The latest development of high performance, thermal break lift and slide door system for large openings.

Optio BSC94 inline sliding door

Modern, versatile, premium.

Combining high performance with stunning design, our sliding aluminium door systems provide a versatile solution for any architectural project. Manufactured to the highest UK standards, this multi-configuration inline system offers outstanding thermal performance and a wide range of customisable options.

Optio BSC94 lift and slide sliding door

Durable, robust, trusted.

For those looking for effortless operation, look no further than our premium lift and slide door. Its vital statistics are impossible to ignore. Thermal U-Values of 1.5W/m2K (triple glazed). Panel weights of up to 400Kg. Sightlines as little as 45mm. The list goes on. As do the benefits, including multiple configurations and a wide choice of colour finishes.