Discover our flagship NFRC-certified and hurricane-rated architectural products engineered for modern North American and global commercial developments.
Factory Wholesale Thermal Break NOA Sliding Door, NFRC Hurricane Window for Miami Commercial Project
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Aluminum Alloy Tempered Glass Interior Sliding Door for Balcony Kitchen Room Partitions-Customizable Size Modern Design
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Superhouse American Style Modern Design NFRC Customized Size Tempered Glass Black Aluminum Crank Awning Window
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Superhouse Custom Curved Glass French Vintage Arched Windows Minimalist Arched Windows Aluminum Casement Window
View ProductAnalyzing regulatory compliance, energy efficiency metrics, and structural requirements for modern architectural engineering.
As building codes undergo rigorous updates across North America, compliance with the National Fenestration Rating Council (NFRC) and California’s Title 24 energy efficiency standards has become mandatory for commercial contractors, real estate developers, and large-scale builders. In regions like New Amsterdam, the convergence of strict thermal insulation requirements, acoustic control mandates, and severe weather loading parameters demands an uncompromising level of manufacturing precision.
Grandex Door Solutions Co., Ltd. leverages over 16 years of industry specialization to deliver certified aluminum windows, thermally broken sliding doors, and hurricane-rated curtain wall systems that exceed standard U-factor and Solar Heat Gain Coefficient (SHGC) benchmarks. Our active R&D division, consisting of 85 specialized structural engineers, consistently innovates to provide tailored technological pathways for modern urban infrastructure.
Our fully integrated smart manufacturing infrastructure ensures superior product integrity from raw material intake to final automated packaging.
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 tester
Expert insights addressing procurement requirements, certification standards, and custom manufacturing workflows.
Our fenestration product lines are fully certified under NFRC (National Fenestration Rating Council), AS2047, and Miami-Dade County Notice of Acceptance (NOA) protocols, satisfying stringent structural windload and energy conservation codes.
Yes. Supported by our 85-member R&D engineering division, we provide end-to-end custom solutions including non-standard sizing, specialized security locking mechanisms, customized powder coating finishes, and decorative insulated glass configurations.
Quality is regulated by our dedicated 45-member QA team operating under strict ISO 9001 protocols, backed by automated CNC testing centers and rigorous third-party laboratory verification for weatherproofing, thermal insulation, and acoustic ratings.
Depending on project scale and customization requirements, standard production and export processing typically range from 4 to 6 weeks, supported by robust supply chain tracking across our 1,200+ partner network.
Explore our full catalog of high-efficiency aluminum windows, heavy-duty sliding doors, and specialized architectural louvers.
Thermal Break Aluminum Casement Fixed Window NFRC Certified Double Glazed Low-E Glass Thermal Insulation for Kitchen Living Room
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Superhouse Hurricane Proof Impact Laminated Glass Balcony Aluminum Heavy Duty Sliding Doors AS2047 NFRC Certification Insulation
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Commercial Window 5 Start Hotel PTAC Louver Casement Window+fixed Louver Customized Blinds Aluminum windows
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High Hurricane Impact Aluminum Fixed Windows with Fiberglass Screen Double Glazing Insect Control-Modern Design Customizable
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NFRC AS2047 Miami Dade Approved Matt Black Powder Coating Aluminium Fixed Window Custom Modern for Villa Aluminum Windows Doors
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Hurricane Proof NOA NFRC AS2047 Maimi Dade Approval Powder Coating Aluminium Small Awning Window
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Superhouse 20 Years Industry Experience High Energy Efficiency NFRC windows Aluminium Graphic Design
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Superhosue High Energy Efficiency NFRC Narrow Frame Aluminium Casement Windows
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Superhosue 20 Years Industry Experience High Energy Efficiency NFRC Narrow Frame Aluminium Casement Window Aluminium windows
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NFRC America's Energy Saving Thermal Break Aluminum Casement Windows Double Glass Built-in Shade Louvers
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Hurricane Impact Soundproof Exterior Patio Door Bi Fold Aluminium Glass Folding Door Waterproof Accordion Door
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Aluminum Casement Window Tempered Glass Window for Apartment and Hotel Aluminium Windows Frame Folding Window
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Grandex Door