Why TOSTEM

As the leading Japanese brand for global housing and building materials, TOSTEM stands apart as a one that deeply understands the needs of people coming from different countries and climates.

TOSTEM’s design and technology are inspired by an intimate familiarity with the beauty-and severity-of Japan’s four seasons. They deliver not only superior performance but also capture and frame the natural scenery beyond, letting you appreciate and enjoy the grandeur of nature throughout the changing seasons.

Focusing on quality and reliability, TOSTEM delivers new value from Japan to homes around the world.

Customer-first manufacturing is central to the TOSTEM brand. Creating high-quality products is just the start. We aim to help our customers realize the lifestyles they aspire to. It is with this goal that our craftsmen create TOSTEM products.

Tostem has always created new technologies with the aim of improving the heat insulation, design, and operability of windows and entrance doors.