Japanese Innovation
in Window Design

Knowledge Centre

System Windows for Developer Projects

Window is one of the most problematic products for any Developer. Leaving aside the architectural significance, many developers face problems in timely completion of project…

Published:17 Aug 2023 | Last Updated: 02 Jan 2025 | Aluminium Windows

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Modern Main Entrance Door Designs for Premium Indian Homes (2026)

The main entrance door is the single most visible design decision on a home’s facade and in India, it is also the primary security system.…

Published:17 Aug 2023 | Last Updated: 08 Jul 2026 | Aluminium Doors

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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…

Published:19 Jun 2023 | Last Updated: 14 Jan 2025 | 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…

Published:19 Jun 2023 | Last Updated: 13 Jan 2025 | 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…

Published:19 Jun 2023 | Last Updated: 23 Jan 2025 | 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.…

Published:28 Feb 2023 | Last Updated: 25 Sep 2025 | Miscellaneous

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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)