Japanese Innovation
in Window Design

Knowledge Centre

Glass aluminium windows

Glass Perfectly Matched to System Aluminium Windows

Glass is one of the earliest man-made materials and was considered a luxury product in early times. Usage of glass for windows started nearly 2000…

19 June 2023 | Aluminium Windows

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Difference casement and sliding windows

Casement vs. Sliding Windows: What's the Difference?

Casement and Sliding windows are the 2 most common styles of windows. The Casement windows swing open like a door. The opening part (sash or…

19 June 2023 | Aluminium Windows

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Aluminium and upvc windows

A Comprehensive Guide to UPVC Windows vs Aluminium Windows

Both commercial and residential buildings have wall openings to allow fresh air and light to come inside. Aluminium is the most common material used in…

19 June 2023 | Aluminium Windows

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Vastu Tips For Home - Tostem India

Vastu Tips For Home in 2025 – Basic Principles and Tips for New Home

Vastu Shastra, which is the science of architecture, is an Indian philosophy that tells us how to maintain the flow of energy in our house.…

28 February 2023 | Miscellaneous

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Casement Window for Your Kitchen and Home

Choose the Best Casement Window for Your Kitchen

Every room at home is significant in its way. However, the kitchen is often referred to as the heart of the home. The kitchen is…

13 October 2022 | Aluminium Windows

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Casement Windows

Top 10 Features and Benefits of Casement Windows

Windows are much more than just a cavity in a wall. They add character to a home. A well-designed window offers better ventilation and a…

13 October 2022 | Aluminium Windows

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Awards & Recognitions

Certificates

TOSTEM products are tested and certified by all major Global Standards, which ensure superior quality and consistent performance.

  • ASTM - American Society for Testing and Materials

    ASTM - American Society for Testing and Materials

  • American Architectural Manufacturers Association (AAMA)

    American Architectural Manufacturers Association (AAMA)

  • Japanese Industrial Standards (JIS)

    Japanese Industrial Standards (JIS)

  • SGS System Certification ISO 9001

    SGS System Certification ISO 9001

  • Thai Industrial Standards Institutes (TISI)

    Thai Industrial Standards Institutes (TISI)