Multi Point Locking Door Manufacturer
Empowering Global Projects with Patented Four-Side Six-Point Security, Advanced High-End Engineering, and Smart Aluminum Architectural Solutions.
Pioneering High-Security Door Manufacturing
As a top-ranking Chinese exporter in the door and window industry, DERCHI provides global customers with one-stop customized aluminum door and window solutions. With advanced manufacturing facilities and strong R&D capabilities, we deliver high-quality products and reliable project support to clients worldwide.
Recognized by the world-class media Xinhua News Agency as a "China Famous Brand", DERCHI Doors and Windows (Guangdong Dejiyoupin Doors and Windows Co., Ltd.) specializes in the research, development, and manufacturing of high-end doors and windows for the global market, offering robust innovation capabilities and large-scale production capacity.
Explore Our ProfileAdvanced Multi-Point Locking Security Systems
Why multi-point locks are vital for modern residential and commercial architectural protection.
Four-Side Six-Point Lock
Our exclusive patented technology locks the door panel securely across four distinct sides at six independent points. This setup prevents forced entry, leverage attacks, and structural warping.
Certified Protection
Tested to meet stringent global standards, our doors hold Hurricane Certification, CE (EU), NFRC (USA), AS2047 (Australia), CSA (Canada), and Energy Star compliance.
AI & Smart Home Ready
Fully compatible with biometric access, smart home hubs, and digital keypads. Experience automated multi-point locking that seals with high-pressure precision.
Over 100 National Patents
Innovation is at the core of DERCHI. Our dedicated team of 30+ R&D experts designs high-performance thermal break aluminum profiles combined with multi-point locking mechanisms to solve modern architectural challenges.
Whether it is extreme wind-load resistance for beachfront villas or high-security, explosion-proof requirements for commercial entrances, our patented systems ensure stability, noise reduction, and structural longevity.
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Advanced Production & Intelligent Manufacturing
Inside our state-of-the-art facility utilizing German automation and strict quality inspection protocols.
Performance Testing Center
An independent window and door performance testing and experimentation center ensures every design passes air tightness, water tightness, and wind pressure tests.
Strict Quality Inspections
We enforce 168 rigorous production processes and 38 strict quality inspections to guarantee that every door leaving our factory meets high-end global standards.
Automated Production Lines
Equipped with eight internationally advanced automated production lines, ensuring high precision, standardized output, and timely delivery for large-scale projects.
Advanced Hardware & Logistics
- ✔ Six advanced glass production lines for insulated and tempered options.
- ✔ Five intelligent warehouses handling raw materials and finished goods.
- ✔ Three German fully equipped automated thermal strip insertion machines.
Featured High-Security Door Products
Premium aluminum, cast aluminum, and armored steel entry doors engineered with multi-point locking mechanisms.
DERCHI NFRC American Aluminum Security Pivot Doors with Smart Lock
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Custom Hurricane Impact Aluminum Pivot Doors with Smart Lock
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Modern Impact Resistant Aluminum Entrance Doors for House
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German Cast Aluminum Armour Door | Luxury Royal Security Steel Entrance
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Luxury Villa Heavy Cast Aluminum Main Entry Door | Security Entrance
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Bulletproof Steel Security Door with Luxury Cast Aluminum Surface
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Bespoke Aluminum Pivot Entry Door | Anti-Theft Soundproof Villa Gate
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Armored Security Entrance Door | Anti-Theft Aluminum Villa Gate
View DetailsAdvanced Manufacturing Facility
A visual tour through our modern factory floor and automated production lines.
Global Certifications & Engineering Standards
DERCHI doors are engineered to comply with the most stringent building regulations worldwide. Our dedication to quality is backed by international testing bodies.
Our certifications include Hurricane Impact Rating, CE (EU), NFRC (USA), AS2047 (Australia), CSA (Canada), Energy Star, and ISO 9001. This ensures our multi-point locking doors perform exceptionally well under high wind loads, intense rainfall, and extreme temperature fluctuations.
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Trusted Partner Worldwide for Aluminum Windows & Doors
With over 700 exclusive shops across China, we serve 100+ countries and have completed 100,000+ successful projects.
Ready to Secure Your Next Project?
Get in touch with our engineering team today to receive a detailed quote, customize your multi-point locking configuration, or request physical product samples.