Pioneering precision engineering and rigorous quality frameworks for high-end residential and commercial developments globally.
Established in 2014, Grandex Door Solutions Co., Ltd. stands at the pinnacle of modern fenestration manufacturing, operating from a state-of-the-art 35,000 m² facility. With 16 years of accumulated industry expertise and 8 years of dedicated global export experience, our enterprise generates an impressive annual export revenue of USD 28 million. Built upon robust OEM and ODM trade backgrounds, our cutting-edge thermal break aluminum windows and architectural solutions primarily serve North America and Western Europe.
Quality remains the central pillar of our operations. Supported by stringent ISO 9001 certified internal testing procedures and rigorous third-party laboratory verifications, our dedicated 45-member Quality Assurance (QA) team ensures uncompromised quality control across every production stage. Furthermore, driven by an active Research & Development division comprised of 85 specialized engineers, we introduced 120 new window and door designs last year alone, offering fully tailored solutions spanning bespoke dimensions, advanced multi-point security locks, elite surface finishes, and insulated decorative glass panels.
Explore our elite inventory engineered for maximum thermal efficiency, acoustic suppression, and hurricane impact resistance.
Analyzing modern trends in international real estate development, commercial contracting, and structural fenestration requirements.
Global real estate developers and commercial contractors face stringent regulatory environments and aggressive carbon-reduction targets. As urban density increases, buildings demand fenestration systems that deliver exceptional structural integrity against extreme weather while providing superior thermal insulation to minimize energy consumption.
Our manufacturing protocols directly address these macro-challenges by integrating high-grade polyamide thermal breaks, multi-cavity aluminum extrusions, and certified impact-resistant laminated glazing. This structural philosophy ensures seamless compliance with international energy codes such as NFRC, Title 24, and AS2047, positioning our partners for long-term operational success.
Whether supplying high-rise residential complexes in North America, luxury commercial hubs in Western Europe, or modular container housing units globally, Grandex delivers scale-tailored manufacturing solutions. By leveraging a robust supply chain network of 1,200+ specialized partners, we guarantee consistent raw material quality, competitive lead times, and end-to-end logistical support.
Our engineering consultancy teams work collaboratively with architects during the early design phase, offering structural load calculations, thermal modeling, and value-engineering recommendations to optimize both performance and budget.
Driving innovation through advanced material science, automated production lines, and smart-home integration.
Transitioning toward multi-chamber polyamide thermal struts and low-conductivity aerogel spacers to achieve near-zero thermal transmittance (U-values), drastically reducing building HVAC carbon footprints.
Integrating IoT-enabled automated locking mechanisms, motorized ventilation actuators, and electrochromic smart glass into our custom aluminum window and door series.
Expanding our green manufacturing initiatives by utilizing up to 75% post-consumer recycled aluminum billets, ensuring full compliance with LEED certification standards worldwide.
A visual walkthrough of our state-of-the-art machinery, CNC centers, and stringent inspection procedures.
Raw materials
Sawing
Milling
CNC Milling
CNC Drilling
CNC Center
Cutting
Intelligent Sorting
Checking and Packing
Sawing Machine
Milling Machine
CNC Milling Machine
CNC Drilling Machine
CNC Center Machine
Double Head Cutting Saw
Intelligent Sorting Line
Semi-finished products inspection
Performance testerDiscover further customized configurations designed for commercial hubs, luxury villas, and multi-family residential projects.
Ensuring seamless cross-border compliance with international building codes and regional engineering standards.
Deploying fenestration products in high-velocity hurricane zones (HVHZ) or regions subject to extreme thermal differentials requires uncompromising adherence to localized building codes. Grandex maintains active certifications including Miami-Dade Notice of Acceptance (NOA), Florida Product Approval (FPA), NFRC energy ratings, and AS2047 Australian standards.
Our engineering division rigorously tests air infiltration, water penetration, structural wind load resistance, and thermal transmittance in accredited third-party laboratories, providing developers with full documentation for frictionless municipal approval.
Cross-border procurement demands precise packaging, secure container loading, and reliable on-time delivery. We utilize heavy-duty export-grade plywood crating with moisture-barrier wrapping to protect aluminum finishes and fragile laminated glass units throughout trans-oceanic transit.
Furthermore, our multilingual technical support team provides comprehensive installation manuals, shop drawings, and remote engineering guidance to ensure smooth on-site execution for every commercial contractor or residential builder we partner with.
Expert answers regarding thermal break technology, custom capabilities, and export procedures.
Grandex Door
