Alitherm 400 Windows

At Pure Trade Aluminium, we supply Alitherm 400 windows for the trade. Engineered for both residential and light commercial applications across Leicester, Derby, and Northampton, it blends modern aesthetics with advanced performance.

These windows make installation easier by integrating the glazing gasket into the bead. This allows for faster, more efficient on-site fitting. Contact us today to find out more.

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Folds Internally Or Externally

Enhanced Thermal Performance

Improves The Overall U-Value

Multi-Point Lock Mechanisms

ALITHERM 400 WINDOWS KEY BENEFITS

The Alitherm 400 features an innovative Quick-Glaze Bead system. By integrating the glazing gasket into the bead, this reduces the number of components needed, speeds up fitting times, and makes the windows easier to work with on site. Perfect for busy contractors and trade teams working across multiple projects.

Installers benefit from reduced labour costs and quicker turnaround times, allowing you to complete jobs faster and take on more work. With minimal disruption during fitting and a user-friendly design, the Alitherm 400 is perfect for both small-scale installations and large developments across Leicester, Derby, and Northampton.

The Alitherm 400 incorporates a strong polyamide thermal break, which helps buildings retain heat more effectively. For commercial developers and trade customers, this not only complies with evolving regulations but also makes any home or commercial space more sustainable.

The Alitherm 400 window system is designed to be flexible, making it a great choice for both new-build homes and commercial projects. It’s available in multiple styles—such as top hung, side hung, tilt & turn, and flush casement, delivering consistent performance. This reduces the number of product lines you need and makes installation quicker.

All Alitherm 400 windows are PAS 24 accredited, offering excellent security that gives your customers peace of mind. By choosing a system that already meets key UK compliance standards, you can ensure projects are safe and specification-ready from the start.

These windows are also compatible with the Secured by Design scheme, making it easier to meet police-preferred security standards on new builds. It’s a reliable way to offer year-round protection and added value to your clients.

In addition to strong security credentials, the Alitherm 400 system is easy to install and integrates smoothly with other products in the Alitherm range. This helps streamline your workflow, reduce site time, and deliver consistent quality across multiple projects.

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Specification

Polyester Organic Powder Coating to BS6496

A Cost-Effective Glazing Process

PAS 24 for Added Security

Wide Variety of Colour Options

Excellent Thermal and Weather Performance

Our Downloads

You can find all our product brochures, technical guides, and installation manuals in the downloads section. We have everything you need to start your next project.

Alitherm 400 – ETC Section Drawings.zip / 8.84 MB

Download

Alitherm 400 – Product Overview Brochure.pdf / 2.17 MB

Alitherm 400 Window.pdf / 20.99 MB

Alitherm 400 Flush Door.pdf / 33.1 MB

Alitherm 400 Stepped Door.pdf / 38.43 MB

Alitherm 400 Tilt & Turn Window.pdf / 11.26 MB

Get in Touch With Us To Start Your Project

To schedule a consultation, contact Pure Trade Aluminium by calling 0116 296 2932. We supply Leicester, Derby, and Northampton with quick lead times and a single point of consistent communication support. We look forward to working with you on your next project.

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FAQs

What configurations are available with the Alitherm 400 window system?

The Alitherm 400 is available in a wide range of styles, such as fixed, top hung, side hung, tilt & turn, and flush casement options. This gives your customers many options to choose from.