Engineered with Rigorous Standards & Patented Technology
From multi-chamber thermal breaks to patented security locking, our systems undergo 168 processes and 38 comprehensive inspections to exceed international building standards.
Glass Safety Patent
Integrated self-adaptive glass retention design ensuring structural security against high wind loads and accidental impacts.
Patented Multi-Point Lock
Exclusive Four-Side Six-Point Lock technology (ZL201610053534.X) providing certified forced-entry resistance and acoustic compression.
Three-Star Green Building
Certified green building material credentials delivering low U-values, maximized solar heat management, and lower building energy consumption.
10-Year Factory Warranty
Backed by double-layer quality assurance and precision production managed by over 80 dedicated R&D and structural engineers.
Comprehensive Product Series
Browse our heavy-duty sliding doors, bi-fold systems, hurricane-rated casements, thermal break picture windows, sunrooms, and luxury composite doors.
80 Aluminum Folding Door
Heavy-duty multi-panel bi-fold system engineered for unobstructed patio openings, seamless floor thresholds, and weather-sealed acoustic performance.
Q15 Aluminum Large Auto Sliding Door
Automated motorized sliding door system designed for ultra-large glazed spans, whisper-quiet tracks, and integration with intelligent smart home systems.
Q5 Aluminum Sliding Door
Narrow-sightline sliding system with heavy-duty stainless steel bottom rollers, multi-point locksets, and superior monsoon water drainage performance.
Z3 Aluminum Glass Pivot Door
Monumental grand entrance pivot door engineered with heavy-load hydraulic pivot hinges, security laminated glass, and customized architectural handles.
Q9 Slim Frame Sliding Door
Minimalist panoramic sliding door featuring ultra-slim vertical interlocks of only 16mm to maximize outdoor views and ambient daylight.
54 Invisible Ghost Sliding Door
Concealed track wall-sliding interior door system providing an ultra-clean floating visual appearance without visible floor hardware.
Luxury Architectural Pivot Doors
Engineered for high-traffic and expansive entry openings, offering smooth 360-degree rotation support with concealed self-closing hydraulic adjustments.
P103 Swing Casement Door
Thermal-break architectural entrance swing door system featuring reinforced 3D adjustable hinges and compression weather seals against rainstorms.
78 Insulated Folding Door
Thermally broken multi-leaf bifold door engineered for superior U-value thermal retention and high wind-load pressure containment.
Thermal Break Hinge Door
Precision-milled heavy hinge door system providing rigorous sound attenuation, airtight weather resistance, and enduring structural rigidity.
Thermal Break Hidden Hinge Door
Flush-surface design incorporating fully concealed internal hinges for a clean, streamlined contemporary architectural aesthetic.
Aluminum Garage Door
Sectional architectural garage doors constructed with corrosion-resistant aluminum panels and insulated cores for reliable long-term security.
G46 Sliding Tilt & Turn Window
Dual-function hardware system combining micro-ventilation tilting with smooth lateral sliding for versatile, space-saving operation.
105B Sliding Window
Engineered with an integrated mosquito screen track, anti-derailment safety locks, and high water-head sill drainage grooves.
K5N Inward Casement Window
European inward-opening tilt-and-turn window with multi-point perimeter compression locking for outstanding air and water impermeability.
E3T Sliding Window
Cost-effective, robust aluminum sliding window featuring balanced multi-wheel silent rollers and reinforced central mullions.
N9 Large-Format Tilt & Turn Window
Heavy-load sash system engineered to carry oversize single-glass panels with smooth handle-guided two-way venting operation.
S63 Top Hung Awning Casement Window
Designed for monsoon ventilation, shielding interiors against rainfall even when open, featuring heavy-gauge stainless 4-bar friction hinges.
G41 Series Heavy Sliding Window
High-inertia rail sliding window designed to withstand elevated wind suction forces on mid-to-high rise building facades.
E5T Series Thermal Break Sliding Window
Incorporates multi-cavity thermal insulation bridges to significantly reduce heat transmission in high-temperature equatorial climates.
Fix Picture Panoramic Windows
Expansive stationary glass walls engineered with reinforced perimeter framing to deliver uninterrupted panoramic views and high structural integrity.
120 Aluminum Freestanding Sunroom
Engineered structural aluminum glass extension featuring internal water drainage spouts, motorized roof shading options, and laminated safety roof glazing.
High-Quality Engineered MDF Door
High-density moisture-resistant composite interior door system engineered for sound dampening and dimensional stability in humid conditions.
Light Luxury Unpainted Wooden Door
Eco-friendly, zero-emission surface technology combined with minimalist concealed magnetic lockcases for modern residential interior projects.
Exclusive Four-Side Six-Point Lock System
Guangdong Dejiyoupin Doors and Windows Co., Ltd. holds national patent ZL201610053534.X, an invention engineered to dramatically elevate anti-pry security and airtight perimeter compression on exterior door and window systems.
Standardized across all premium DERCHI profiles, integrating with global hardware partners including HOPPE, Sobinco, and Siegenia.
