Why choose AluK systems


Why choose AluK for your Aluminium Windows and Doors?

Why choose AluK aluminium systems? 

For over 25 years, we’ve been at the forefront of aluminium window and door design. But why aluminium?  

  • It’s lightweight, strong and almost 100% recyclable. 
  • It doesn’t warp or rust and is near maintenance-free. 
  • It’s exceptionally versatile, with styles to suit all types of property. 

Without compromising on strength, our aluminium window and door systems are designed to offer you the narrowest of sightlines, giving you larger glazed areas to flood your home with light. But that’s not all. Our aluminium window systems exceed the performance standards expected in modern building design, ensuring your home is energy-efficient and secure.  

Trusted, tried and tested 

AluK have been at the forefront of aluminium window and door design for long enough to have built an enviable reputation with fabricators and installers, who love the design, performance and reliability of our products. We offer homeowners stylish and low-maintenance solutions that improve living environments and add value to the home.  

High performance 

Our window and door systems offer award-winning U-value performance for both double and triple glazing. In fact, we were the first company to ever gain an A-rated aluminium double glazed window system in the market

With in-house test facilities, we design our products to achieve the highest possible test results in the three main areas: water tightness, wind resistance and air permeability. Our products are tested externally to verify these results, ensuring that they are best in class. We do the hard work behind the scenes, so all you’ll notice is that your windows and doors keep your home warm, dry, and draught-free.  

Each system includes water and acoustic barriers, and utilises the latest manufacturing technologies and techniques to provide long-term peace of mind. They also have integrated drainage paths that allow water to pass through the system. This, combined with the high quality air seals and barriers, ensures they can tackle the everchanging British climate with ease. 

Window Energy Ratings 

Our aluminium window systems are rated for their energy efficiency using the familiar A-G scale. This helps you decide which windows to choose based on whether you are renovating and existing property or tackling a new build project. Window Energy Ratings (WERs) also affect fabricators, because in order to supply WER products a fabricator must join an official and recognised scheme. 

This is to ensure that manufacturers can prove they have audited processes in place and that the ratings displayed are accurate. As you’d expect, we have our own group scheme at AluK. This provides members fast track access to all our WER data, saving them valuable time and effort. 


We understand the importance of security to homeowners. That’s why all our window and door systems are independently tested to ensure they not only meet current security regulations for new builds, but that they’re inherently burglar-resistant too. Most of our systems are also certified by PAS 24, Secured by Design and Q-mark accredited.