Grandex Door Solutions Co., Ltd., established in 2014, brings 16 years of industry-leading expertise to the Hanoi market. As cities like Hanoi transform into regional hubs, the demand for precision-engineered Single Hung and Double Hung windows has surged. Our 35,000 m² facility utilizes advanced CNC integration to provide climate-resilient fenestration solutions that meet both local tropical-monsoon building codes and international performance benchmarks.
Raw Materials
Sawing
Milling
CNC Milling
Hanoi’s construction sector is moving toward high-efficiency, energy-saving designs. Our Double Hung windows offer superior ventilation control, critical for Hanoi’s humid environment, while our single-hung units provide cost-effective durability for high-rise residential developments. With an annual export revenue of USD 28 million and a robust 85-engineer R&D team, we offer full custom solutions that bridge the gap between global standards and localized architectural demands.
By leveraging intelligent sorting and CNC precision, we ensure that every window frame meets strict thermal performance criteria. Our commitment to sustainability is backed by ISO 9001 certification and a 45-member QA team dedicated to third-party lab verification, ensuring reliability for every stakeholder from real estate developers to individual commercial contractors.
CNC Drilling
CNC Center
Cutting
Intelligent Sorting
Checking/Packing
Sawing Machine
Milling Machine
CNC Milling
They allow for top-down ventilation, which is essential to manage heat and humidity levels within residential units effectively.
Yes, we have a deep history in OEM/ODM and currently serve over 1,200 global supply chain partners.
Grandex Door