Grandex Door Solutions Co., Ltd. represents the pinnacle of NFRC and Title 24 compliant engineering. Established in 2014, we leverage 16 years of industry mastery to provide New York’s competitive architectural landscape with high-performance entry doors. Our 35,000 m² facility is a hub of technological innovation, where we integrate North American standards with robust Chinese manufacturing efficiency.
Operating with 1,200+ supply chain partners, we ensure consistent lead times despite global logistics fluctuations.
Strict alignment with NFRC and California Title 24 requirements ensures energy efficiency for NYC’s demanding climate.
Our 85-member R&D team deployed 120 new designs last year, catering to custom dimensions and security locks.
Raw materials
Sawing
Milling
CNC MillingThe NYC market requires extreme thermal performance due to urban heat island effects and stringent energy codes. Our localized support ensures that real estate developers receive products that not only meet NFRC standards but exceed aesthetic expectations for commercial projects. By combining China's manufacturing scale with localized NY distribution expertise, we deliver a competitive advantage in project lead times and cost-efficiency.
CNC Drilling
CNC Center
Cutting
Intelligent Sorting
Checking and Packing
Sawing Machine
Milling Machine
CNC Milling MachineA: We utilize certified third-party testing and internal QA protocols to ensure every door meets the specific U-factor and SHGC requirements for NY climate zones.
A: Thanks to our 35,000 m² automated facility and 1,200 supply chain partners, we optimize production cycles for efficiency, ensuring rapid fulfillment for North American contractors.