Explore our top-tier certified impact-resistant and thermal-break aluminum fenestration products engineered for modern luxury homes, high-rise developments, and commercial facilities.
Grandex Door Solutions Co., Ltd. represents the apex of structural aluminium entry system manufacturing, backed by rigorous quality governance, industrial automation, and deep international compliance.
Established in 2014, Grandex Door Solutions Co., Ltd. is a premier entry door 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.
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.
Our operational framework blends heavy industrial CNC machining precision with flexible OEM custom fabrication. By maintaining end-to-end oversight from raw T66 aluminum alloy extrusions to final high-velocity impact glass assembly, we offer structural warranties up to 10 years and guarantee structural integrity under extreme climate stress tests.
Engineering customized entrance systems tailored to regional climate demands, localized structural codes, and specific architectural typologies globally.
Specifically custom-engineered with multi-chamber heavy-gauge extruded aluminium profiles, laminated impact safety glass, and Miami-Dade Florida NOA compliance. Built to withstand high-velocity wind loads (up to +90/-90 psf) and severe wind-borne debris without structural failure or water infiltration.
Equipped with thermal-break polyamide (PA66) barrier strip technology, triple-glazed Low-E gas-filled glass units, and patented capillary capillary tube pressure equalization systems. Eliminates thermal bridging, prevents interior condensation, and maintains U-factors as low as 0.18 BTU/h·ft²·°F.
Designed for factories, corporate headquarters, and luxury hotels requiring ultra-wide pivot systems, automated multi-point access integration, and high-wear anodized finishes (AAMA 611 Class I). Capable of enduring 500,000+ open-close operational cycles with zero frame distortion.
Rigorous engineering metrics defining our OEM/ODM custom aluminum front doors and commercial structural glazing solutions.
| Performance Parameter | Technical Specification / Standard | Architectural Benefit / Application |
|---|---|---|
| Alloy Composition | Architectural Grade 6063-T5 / 6061-T6 Aluminum Alloy | High yield strength, superior structural rigidity, anti-corrosion for coastal installations. |
| Thermal Insulation | PA66 Nylon Thermal Break Strips + Argon Gas Infill | Reduces thermal conductivity; U-Factor ranges from 0.18 to 0.28 BTU/h·ft²·°F. |
| Impact Resistance | ASTM E1886 / E1996 Large Missile Impact & TAS 201/202/203 | Florida NOA certified for high-velocity hurricane zones (HVHZ). |
| Acoustic Performance | Double/Triple Laminated Glass with PVB/SGP Interlayers | Sound Transmission Class (STC) up to 45 dB; reduces ambient traffic & urban noise. |
| Surface Finishes | Qualicoat Powder Coating, PVDF Fluorocarbon, Anodized Class I | 10–25 year warranty against chalking, fading, cracking, and salt spray exposure. |
| Hardware Systems | German Siegenia / HOPPE / Custom Multi-point Locking Systems | Anti-burglary structural security class RC2/RC3; motorized smart keyless access. |
Our 35,000 m² automated manufacturing complex integrates advanced CNC center machining, intelligent sorting lines, and strict 9-step quality assurance protocol.
Anticipating the next decade of fenestration design: Smart IoT integration, ultra-low carbon alloys, and next-generation vacuum insulated glass (VIG).
Next-generation OEM aluminum entry doors feature concealed biometric fingerprint recognition, facial recognition cameras, motorized multi-bolt latching mechanisms, and seamless connectivity with Apple HomeKit, Zigbee, and Control4 smart home ecosystems.
By pairing 8.3mm ultra-thin Vacuum Insulated Glass with 100% recycled Hydro CIRCAL low-carbon extruded aluminum profiles, Grandex aims to deliver carbon-neutral front doors with thermal performance comparable to solid masonry walls (U-values < 0.10 W/m²K).
Integrated tint-on-demand electrochromic glass option allowing users to toggle front entry door privacy from crystal clear to opaque via smartphone app or physical touch sensor, eliminating the need for blinds or decorative grilles.
Full turnkey engineering assistance, BIM/CAD shop drawing support, and certification compliance across North American and European regulatory frameworks.
Navigating global building codes requires strict adherence to regional engineering mandates. Grandex Door Solutions provides complete export documentation and laboratory test certifications for commercial developers and distributors:
We supply dedicated BIM (Revit) object files, 3D CAD detail drawings, physical architectural binder samples, customized packaging with private-label branding, and local engineering stamp support for North American and European plan submittals.
Answers to critical questions asked by real estate developers, building material distributors, and project architects.
Discover our full range of fixed picture windows, container house sliding gates, thermal break casement entry doors, and high-altitude specialized glass.
Grandex Door