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. We serve as a critical bridge between high-efficiency manufacturing and the evolving architectural landscape of Houston.
Supply Chain Partners
QA Expert Team
Specialized Engineers
New Designs Yearly
Houston’s unique climate—characterized by high humidity, extreme heat, and hurricane-prone coastal exposure—requires entry doors that excel in both structural integrity and weather resistance. Grandex leverages advanced ISO 9001 testing to ensure our doors meet the specific codes required for Texas commercial and residential developments. From high-impact glass panels to reinforced steel frames, our technical roadmap prioritizes durability and energy efficiency, providing Houston contractors with a reliable, compliant, and cost-effective supply chain solution.
Raw materials
Sawing
Milling
CNC MillingThe convergence of Industry 4.0 and smart home integration defines the next decade of entry design. Our R&D division is currently developing biometric security integrations and thermally-broken framing systems designed to combat Houston's intense summer thermal gain. By utilizing intelligent sorting lines and automated precision drilling, we reduce waste and increase throughput, ensuring that your large-scale Houston projects remain on schedule and within budget.
We utilize specialized logistics networks ensuring door-to-door delivery, handling all necessary documentation and customs compliance for import into the U.S.
CNC Drilling
CNC Center
Cutting
Intelligent Sorting
Checking and Packing
Sawing Machine
Milling Machine
CNC Milling Machine