Aluminium Windows

How to Check the Quality of Aluminium Windows

Publish IconPublished: June 17, 2024
Update IconLast Updated: July 10, 2025

As a leading aluminium windows and doors manufacturer, Eternia understands the importance of choosing high-quality products for your home or business. That is why we ensure we provide top-tier products that stand the test of time.

If you are looking to check the quality of aluminium windows, here’s a comprehensive guide to help you determine if our aluminium doors and windows are of good quality.

What are Some Key Factors to Check the Quality of Aluminum Windows?

  1. Material and Construction Quality

    The foundation of quality aluminium windows lies in the material itself. Therefore, our engineers have made a patented high-grade aluminium alloy: Duranium. Duranium provides superior strength, durability, and corrosion resistance.

    Duranium is up to 1.5x stronger than standard aluminium alloys and has been tested and proven by experts from IIT Delhi. Each of Eternia’s products is manufactured with the highest degree of dedication and precision.

    Also, the surface finish of the windows is a critical parameter. High-quality aluminium windows have a smooth, consistent finish, often powder-coated or anodised for added durability and resistance to weather conditions. Poor finishes may indicate the use of inferior materials or subpar manufacturing processes. And hence, another benefit of opting for Duranium windows is that they offer a superior finish compared to regular aluminium alloy.

  2. Robust Frame Design

    Good quality aluminium windows have robust frame construction. The frames should be sturdy and well-engineered to withstand various stresses without bending or warping. Look for reinforced corners and smooth joints that indicate precise manufacturing.

  3. Unmatched Scale and Strength

    Our sleek windows can be made up to a height of 15ft (4.5m) with every sash measuring up to 2.5m in width. Eternia windows ensure exceptional strength alongside smooth operation. Personalise your space with various glass options and configure your windows according to your preferred design style.

  4. Hardware and Components

    Our aluminium windows and doors are made with durable hardware, including handles, locks, and hinges, all of which are backed by a 5-year warranty. These components are designed to be strong, easy to operate, and resistant to wear and corrosion.

    We use a unique gasket-based sealing mechanism that protects against water leakage and outside noise. Our windows can be customised with glass thicknesses of up to 40mm and are compatible with single-glazed, double-glazed, and laminated glass options, which help prevent energy loss and reduce outside noise.

  5. Certifications and Standards

    At Eternia, all aluminium windows and doors are tested and certified as per global standards and come with a WiWA score. It is an acronym for Wind, Water, and Air, which signifies protection from cyclonic winds, heavy rain, dust, and noise pollution.

    Each window system is assigned a WiWA score, indicating the product’s performance rating. Utilise our website’s “Know your WiWA score” feature to select the appropriate window system tailored to your requirements.

  6. Warranty

    We know that a strong warranty is a good indicator of quality. All our window profiles come with a 12-year warranty, and all moving hardware is covered under a 5-year warranty.

  7. Customer Reviews and Testimonials

    Customer reviews and testimonials give valuable insights into the quality of aluminium windows. Several leading developers, including Rustomjee, L&T Realty, Birla Estates, and many more trust Eternia windows.

  8. Professional Installation

    Proper installation is crucial for the performance of aluminium windows. Our authorised partners install all our windows, and post installation, a thorough quality check is conducted by technical experts from Eternia. Once the windows pass the QC check, the site is handed over, and a warranty is provided.

Conclusion

By considering and confirming all the factors mentioned above, you can decide whether a window is of good quality or not. At Eternia, we pay attention to these details so that your investment in our aluminium windows is the best quality investment, providing lasting beauty, efficiency, and security for your home or business.

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