Fortisdor Security Doors Co., Ltd. brings 20 years of precision engineering to the Tokyo metropolitan area. Understanding the unique requirements of Japanese residential and commercial buildings—characterized by high-density urban planning and strict earthquake resistance standards—we provide high-performance single hung and double hung window systems that merge thermal efficiency with structural integrity.
Operating a 32,000m² facility, we ensure supply chain stability for large-scale Tokyo development projects.
40 certified inspectors monitor every production stage, from raw material sourcing to final corrosion-resistant testing.
Our 50-person engineering team drives custom solutions, including thermal-break profiles suited for Japan’s seasonal variations.
Cutting
Open Keyhole
Frame Connection
Cleaning GlassTokyo requires building materials that handle high humidity, typhoons, and energy-saving mandates (ZEH - Net Zero Energy House). Fortisdor provides localized thermal-break technology and multi-point electronic lock integration, ensuring that every export meets the high expectations of Japanese contractors. Our 950+ supply chain partners enable us to scale production while maintaining competitive pricing for global wholesale and developer partners.
Glass Installation
Gluing
Gauze Installation
Warehouse
CNC Double Saw
Welding Machine
Duamian
CNC Angle CleanerOur frames utilize flexible structural connectors that absorb kinetic energy, alongside high-strength tempered glass to ensure safety under seismic load.
Yes, our specialized thermal-break profiles reduce heat transfer by over 40%, meeting strict Japanese residential energy efficiency standards.
Fortisdor