Japanese Innovation in Window Design
World's Leading Aluminium Windows & Doors Brand
100+
Years of Legacy
50+
Countries
40
Years TEXGUARD
4
Design Awards
What Makes TOSTEM a Leading Brand
TOSTEM brings Japanese innovation and precision engineering to every window and door we create.
TEXGUARD Technology
Patented surface coating offering scratch resistance for up to 40 years.
Learn moreJapanese Innovation
Born from Japanese engineering excellence, combining cutting-edge technology with timeless design.
Learn moreAward-Winning Design
Recognized with Red Dot, iF, Best100, and German Design Awards.
Learn morePre-Engineered System
Manufactured in controlled factory environments ensuring consistent quality.
Learn moreOur Product Range
Explore our comprehensive range of premium aluminium windows, doors, and building solutions.
Sliding Doors
Smooth-gliding doors that maximize space
Casement Doors
Elegant doors with excellent weather performance
French Doors
Classic French styling with modern performance
Bi-Fold Doors
Seamless indoor-outdoor connections
Corner Slider
Dramatic architectural statements
View All Aluminium Doors
What Our Customers Say
Hear from homeowners and architects who have experienced the TOSTEM difference.
“The quality of TOSTEM windows is exceptional. The sound insulation is remarkable — we can barely hear the traffic outside. Highly recommended!”
Rajesh Sharma
Mumbai
“We chose TOSTEM for our entire apartment renovation. The pre-engineered system meant perfect fit every time, and the installation was incredibly smooth.”
Priya Patel
Delhi
“The TEXGUARD coating has kept our windows looking brand new for over 3 years now. The surface still looks as good as the day they were installed.”
Amit Mehta
Bangalore
Project Gallery
Explore TOSTEM installations across India, showcasing stunning architecture and superior performance.
Modern Living Space
Elegant Interior
Premium Installation
Architectural Design
Door Collection
Contemporary Style
Window Design
Project Showcase
Part of LIXIL Group — Global Leaders in Housing & Building Materials
Knowledge Centre
Expand your understanding of windows, doors, and building solutions.
What is a Pre-Engineered System Window?
Learn about the revolutionary approach to window manufacturing that ensures consistent quality.
Read morePlanning a System Window for Your Home
A comprehensive guide to help you choose the right windows for your project.
Read moreSystem Aluminum Windows Explained
Understanding the technology and benefits of system aluminum windows.
Read more
Ready to Transform Your Space?
Experience the TOSTEM difference. Book a consultation or visit our showroom to see our products firsthand.