Explore our elite selection of certified impact-resistant architectural windows and doors, engineered for ultimate safety and modern aesthetics.
Pioneering architectural resilience with cutting-edge engineering, rigorous compliance, and scaled manufacturing capacity.
Established in 2014, Grandex Door Solutions Co., Ltd. is a premier entry door and hurricane impact window manufacturer operating from a modern 35,000 m² facility. With 16 years of industry expertise and 8 years of dedicated export experience, the company generates an annual export revenue of USD 28 million. Grounded in strong OEM and ODM trade backgrounds, our products primarily serve North America and Western Europe, supported by a network of over 1,200 supply chain partners. We cater to leading building material distributors, real estate developers, and commercial contractors globally.
Quality is integral to our operations: supported by strict ISO 9001 certified internal testing and third-party laboratory verification, our 45-member QA team ensures rigorous quality control throughout production. Driven by an active R&D division with 85 specialized engineers, we introduced 120 new door designs last year and offer full custom solutions spanning custom dimensions, security locks, surface finishes, and decorative glass panels.
In response to escalating climate anomalies, coastal urbanizations, and stricter building codes (such as Florida Building Code and Miami-Dade NOA standards), global commercial and residential developers face unprecedented structural challenges. Grandex delivers macro-level architectural solutions that bridge aesthetic modernism with uncompromising structural safety. Our impact-resistant systems utilize multi-chamber thermal break aluminum profiles combined with high-tensile PVB/SGP laminated glass, neutralizing extreme wind loads and wind-borne debris.
Our solutions cater directly to luxury coastal villas, high-rise hospitality projects, and large-scale municipal developments. By integrating smart locking mechanisms, energy-efficient Low-E coatings, and superior acoustic dampening, our products fulfill the dual requirements of sustainable architecture and supreme hazard protection.
A transparent look into our state-of-the-art automated production lines and stringent quality assurance framework.
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Checking and Packing
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Discover more specialized folding doors, sliding glass configurations, and smart entrance systems built to international export standards.
Ensuring seamless international deployment through stringent certification, localized engineering, and sustainable innovations.
Navigating global building regulations requires deep adherence to regional safety frameworks. Our product lines hold prestigious certifications including Miami-Dade Notice of Acceptance (NOA), Florida Product Approval (FPA), NFRC energy ratings, and AS2047 Australian standards. We provide comprehensive engineering documentation, shop drawings, and calculation packages to assist structural engineers and contractors through rigorous local building permit approvals.
Furthermore, our technical support extends beyond manufacturing. We offer localized consultation, professional installation guidelines, and dedicated project management to ensure every window and door system performs flawlessly under specific regional climatic pressures—from hurricane-prone coastlines to high-altitude thermal zones.
Looking ahead, Grandex is heavily investing in next-generation smart fenestration technologies. Our R&D roadmap incorporates IoT-enabled multi-point locking systems, electrochromic smart glass for dynamic solar heat control, and ultra-low carbon aluminum extrusion processes. By combining superior physical impact resistance with intelligent automation and eco-friendly manufacturing, we empower developers to build the resilient, zero-energy smart cities of tomorrow.
Expert answers to common queries regarding hurricane impact windows, international shipping, and customization.
Our hurricane impact windows are engineered with heavy-duty aluminum frames featuring structural thermal breaks and high-performance laminated glass (PVB or SGP interlayers). They are tested to withstand high wind pressure and impact from flying debris without shattering or allowing wind/water infiltration into the building envelope.
Yes. Many of our sliding doors, windows, and fixed architectural glass systems are fully tested and certified to meet Miami-Dade NOA (Notice of Acceptance) and Florida Product Approval (FPA) requirements, making them fully legal and compliant for coastal high-velocity hurricane zones (HVHZ).
Absolutely. With an R&D team of 85 specialized engineers and a 35,000 m² advanced manufacturing plant, we specialize in OEM/ODM projects, offering bespoke dimensions, custom finishes, specialized security hardware, and intricate glass patterns tailored to your blueprints.
With an annual export revenue of USD 28 million and a robust supply chain network of over 1,200 partners, we ensure efficient production scheduling. Standard production lead times range from 4 to 6 weeks, supported by professional export packaging designed for safe international ocean freight.
Grandex Door
