DERCHI Engineering Workshop
Precision Fenestration Series

Custom Products Supplier & Factory

Engineered by Guangdong Dejiyoupin Doors and Windows Co., Ltd. for contractors, developers, and distributors across Asia. Compliant with AS2047, CE, CSA, and hurricane standards.

Patented Architecture

Global Standards, Rigorous Craftsmanship

Backed by 100+ patents, including the exclusive Four-Side Six-Point lock, our systems undergo 168 manufacturing steps and 38 quality checkpoints.

Glass Safety Patent

Self-adaptive glass adjustment system buffering seismic shock and dynamic high-altitude wind pressure.

Lock Safety Patent

Proprietary multi-point lock mechanism paired with premium hardware for high anti-burglary defense.

Green Building Material

Awarded Three-Star Green Building Material certification, ensuring minimal thermal transfer and lower HVAC costs.

10-Year Warranty

Comprehensive long-term structural warranty with complete dual-insurance protection for export projects.

Product Catalog

Explore Engineered Systems

Choose from high-performance aluminum doors, impact-resistant windows, modern freestanding sunrooms, and luxury architectural interior doors.

80 Aluminum Folding Door Bifold System

80 Aluminum Folding Door

Heavy-duty multi-panel folding system designed for wide patio openings, high water tightness, and smooth bottom-hung carriage tracks.

Thermal Break Inquire System
Q15 Aluminum Large Auto Sliding Door Automated Sliding

Q15 Large Automated Sliding Door

Engineered for high-end coastal villas and resorts, integrating motorized smart drive units and multi-point security latching.

Smart Automation Inquire System
Q5 Aluminum Sliding Door Heavy Slider

Q5 Heavy-Duty Sliding Door

Stainless steel rails and silent tandem rollers accommodate heavy double-glazed units with high wind-load ratings.

Typhoon Ready Inquire System
Z3 Aluminum Glass Pivot Door Pivot Entry

Z3 Grand Aluminum Pivot Door

Statement entry system with German pivot floor springs, integrated perimeter LED, and anti-warping reinforced thermal profiles.

Architectural Entry Inquire System
Q9 Slim Frame Sliding Door Minimalist System

Q9 Ultra-Slim Sliding Door

Minimalist vertical interlock profiles with concealed frame architecture, delivering panoramic views and maximum daylight.

Narrow Sightline Inquire System
54 Invisible Ghost Sliding Door Interior Concealed

54 Invisible Ghost Sliding Door

Hardware hardware and top-running track concealed entirely within the leaf, giving the illusion of seamless floating movement.

Concealed Track Inquire System
P103 Swing Casement Door French Swing

P103 Swing Casement Door

Triple weather-seal gaskets and high-drainage threshold designs engineered to block extreme tropical driving rain.

Triple Gasket Inquire System
78 Insulated Folding Door Insulated Folding

78 Insulated Folding Door

Multi-chamber polyamide thermal barrier combined with argon-filled low-E glazing for superior U-value thermal performance.

Low-E Insulated Inquire System
Aluminum Garage Door Architectural Garage

Architectural Aluminum Garage Door

Insulated glass and polyurethane-filled aluminum panels delivering high security, thermal barrier, and modern curb appeal.

Automated Lift Inquire System
G46 Sliding Tilt Turn Window Tilt & Turn

G46 Sliding Tilt-Turn Window

Dual-function hardware engineered for draft-free top ventilation and complete inward opening for easy maintenance in towers.

Dual Function Inquire System
105B Sliding Window Sliding Window

105B Heavy Sliding Window

Equipped with an integrated stainless steel insect screen, heavy stepped tracks, and high pressure wind-resistant profile design.

Screen Integrated Inquire System
K5N Inward Casement Window Inward Casement

K5N Inward Casement Window

Features flush-line aesthetics, high thermal-break bridges, and European multipoint locking latches for premium sound isolation.

Acoustic Dampening Inquire System
N9 Large Size Tilt Turn Casement Window Large Sash

N9 Oversized Tilt-Turn Window

Engineered with reinforced profile walls designed to support thick laminated acoustic glass panels for city high-rises.

Oversized Sash Inquire System
S63 Top Hung Awning Casement Window Awning Window

S63 Top-Hung Awning Window

Provides constant ventilation while blocking heavy monsoon rains, fitted with heavy-duty stainless steel 4-bar friction stays.

Monsoon Proof Inquire System
Fix Picture Panoramic Windows Fixed Picture

Fix Picture Panoramic Window

Engineered for high structural rigidity to enable floor-to-ceiling glass installations with unobstructed scenic vistas.

Panoramic View Inquire System
120 Aluminum Freestanding Sunroom Glass Conservatory

120 Aluminum Freestanding Sunroom

Heavy extruded aluminum structural posts engineered with integrated internal water drainage channels and solar-reflective laminated roofs.

Integrated Drainage Inquire System
High Quality MDF Interior Doors Engineered Wood

High-Quality Artificial Board MDF Door

Precision-manufactured high-density core door providing exceptional dimensional stability, warping resistance, and sound privacy.

Anti-Warping Inquire System
Light Luxury Unpainted Wooden Doors Luxury Interior

High-End Light Luxury Unpainted Door

Eco-friendly textured skin finish designed for upscale apartments, hotels, and luxury private villas requiring non-toxic durability.

Eco-Friendly Skin Inquire System

Custom Engineering & Project Quoting

Send your project schedule or CAD drawings to Guangdong Dejiyoupin Doors and Windows Co., Ltd. Our engineering desk verifies code compliance, glass configurations, and hardware loads.

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