Exterior / Hotel
Export Product Portfolio
Engineered Crittall-Style & Architectural Door Systems
Explore our precision-manufactured slim-frame French doors, heritage casements, sliding systems, and automated architectural entrances tailored for residential and commercial retrofits throughout Brussels, Antwerp, Ghent, and Wallonia.
Exterior / Hotel
Motorized System
Commercial Grade
CE & NFRC
Heritage Curve
Modern Kickplate
Thermal Slider
Acoustic Glazing
Belgian Architectural Fit
Engineered Specifically for Flanders and Wallonia Contexts
Traditional Belgian architecture presents a unique blend of heritage brick facades, Brussels Art Nouveau townhouses, and avant-garde minimalist contemporary villas. Our aluminium Crittall-style systems are customized to bridge timeless aesthetics with the stringent energy-performance demands of Northwest Europe.
Brussels Townhouses (Maison de Maître)
Interior glass partitions and veranda transitions replacing bulky timber without structural load penalties. Provides acoustic attenuation (Rw up to 42 dB) while maintaining narrow sightlines that respect protected heritage interiors.
Modernist Flemish Farmhouse Conversions
Popular across Kortrijk, Ghent, and Hasselt, rustic red-brick exteriors pair seamlessly with textured matte black steel-look French double doors featuring true architectural astragal glazing bars and multi-point security hardware.
EPB & Low-Energy Villa Envelopes
Unlike raw steel Crittall systems that produce continuous thermal bridges, our polyamide thermal-break aluminium systems reach overall Uw values as low as 1.1 W/m²K, easily surpassing Flemish EPB requirements for new residential construction.
High-End Commercial & Hospitality
Boutique hotels, luxury retail showrooms, and Michelin-starred restaurants across Bruges and Antwerp require fire-rated glazed dividers, ADA/Belgian barrier-free threshold transitions, and integrated electromagnetic smart access controls.
| Performance Criterion | Chinese Factory Direct (DERCHI Specification) | Belgian Norm Standard (NBN / EN) | Local Market Advantage |
|---|---|---|---|
| Thermal Transmittance (Uw) | 1.1 – 1.4 W/m²K (Polyamide PA66 Thermal Break) | NBN EN ISO 10077-1 (EPB Vlaanderen ≤ 1.50) | Passes passive & renovation energy compliance effortlessly |
| Acoustic Attenuation (Rw) | 36 dB – 44 dB (Laminated Acoustic Acoustic PVB Glass) | NBN S 01-400-1 (Residential Acoustic Comfort) | Substantial noise dampening for dense inner-city Brussels streetscapes |
| Air & Wind Resistance | Class 4 Air (EN 12207) / Class C5 Wind (EN 12210) | EN 14351-1 CE Conformity | Withstands North Sea gale winds and torrential coastal rainfall |
| Finish Durability | Qualicoat Class 2 Superdurable Powder (80–100 μm) | EN 12206-1 / Marine Grade Seaside Guarantee | Resists industrial precipitation and damp maritime moisture without flaking |
Strategic Sourcing Insights
Emerging Sourcing Trends in the Belgian Fenestration Sector
How Belgian general contractors, facade engineers, and project developers optimize procurement value through verified Chinese direct manufacturing alliances.
The Shift: Traditional Steel vs. Thermal-Break Aluminium
While authentic cold-rolled steel Crittall doors offer indisputable historical legacy, their raw material weight (causing hinge sagging over time), susceptibility to rust in rainy climates, and extreme thermal bridge vulnerability make them impractical for modern exterior Belgian facades. Precision extruded 6063-T5/T6 aluminium alloys reproduce ultra-slim 25mm to 38mm sightlines while integrating multi-chamber polyamides, slashing product weight by 45% and reducing building heating dissipation.
Prefabrication & Direct-to-Site Sea Freight
Belgian site labor costs are among the highest in Europe. Importers and property developers increasingly favor turnkey, fully pre-hung unitized systems delivered from our Foshan facility. Doors arrive complete with precision CNC-milled hardware mortises, German-engineered multi-point locks, and pre-glazed acoustic glass cassettes. Shipping via FCL directly to Port of Antwerp or Zeebrugge eliminates 30–50% of local distributor markups.
Aesthetic Evolution: Architectural Textures & Slim Astragal Grids
Belgian interior designers are moving beyond basic flat matte black. Current project schedules from Brussels demand Qualicoat structured textured finishes (such as Axalta architectural dark bronze, gunmetal grey, and sand-textured micro-ribbed finishes). True Division Lites (TDL) and ultra-narrow Applied Astragal Bars with internal spacer tubes reproduce historic geometric grid elegance without compromising structural inertia.
Enterprise Manufacturing Authority
Guangdong Dejiyoupin Doors and Windows Co., Ltd. (DERCHI)
Recognized as one of China's top-tier manufacturers of architectural aluminium systems, entry doors, and structural glazed assemblies, DERCHI brings over 25 years of engineering mastery to global contractors and facade developers.
Operating from our mega-scale 180,000 m² smart production base located in Foshan, Guangdong, our factory integrates automated 5-axis German CNC profile machining, high-capacity robotic anodizing, dual-chamber polyamide insertion lines, and computerized glass assembly workshops.
With more than 100 patents and formal global certifications—including CE marking under EN 14351-1, ISO 9001 quality audits, AS2047 N6 cyclonic testing, and UL fire classifications—our systems are engineered from the molecular alloy level to meet and exceed rigorous European Union standards.
180,000 ㎡
Intelligent Manufacturing Base in Foshan, China
180K
Square Meters Facility
25+
Years Engineering Expertise
100+
International Patents & Certs
600+
Specialized Craftsmen & Engineers
Procurement Clarity
Frequently Asked Questions by Belgian Buyers & Developers
Everything Belgian general contractors, architects, and quantity surveyors need to know regarding compliance, lead times, logistics, and bespoke manufacturing.
Are Chinese-made aluminium Crittall doors compliant with Belgian EPB (Energieprestatie en Binnenklimaat) regulations?
Yes. Belgian EPB standards (regulated regionally in Flanders via VEKA, Wallonia, and Brussels Environment) require strict overall thermal transmittance values (Uw ≤ 1.50 W/m²K for outer fenestration). Our exterior Crittall-style doors feature multi-chamber PA66GF25 polyamide thermal isolators combined with argon-filled low-E double or triple-pane safety glazing (Ug down to 0.7 W/m²K), yielding composite Uw values between 1.1 and 1.3 W/m²K. We furnish full EN ISO 10077-1 thermal calculation simulation reports alongside official CE documentation to enable fast permit clearance with your local EPB reporter (EPB-verslaggever).
What surface finish standard protects against coastal salt mist in Knokke/Ostend and industrial moisture?
For exterior installations across Belgium—particularly vulnerable coastal zones along West Flanders—we execute a multi-stage zirconium eco-pretreatment followed by Qualicoat Class 2 certified architectural architectural powder coating or fluorocarbon (PVDF) electrostatic spraying. With total coating thicknesses exceeding 80–100 microns, profiles achieve a 3,000-hour acetic acid salt spray (AASS) rating with zero blistering or filiform corrosion. You receive a verified 15 to 25-year structural exterior finish warranty against fading, chalking, and delamination.
Can DERCHI manufacture custom dimensions, arch tops, and bespoke grid patterns to match CAD drawings?
Every order is 100% custom-built to match architectural schedules. Whether your project entails massive 3.2-meter high oversized interior pivot doors, traditional Roman arched double doors for a historic mansion, or asymmetric Bauhaus-inspired astragal grids, our dedicated facade engineering team prepares comprehensive millimeter-precise CAD shop drawings and structural wind-load deflection calculations for your sign-off prior to CNC milling and extrusion cutting.
How are fragile glass doors packed to prevent shipping damage between Foshan and Antwerp?
We employ heavy-duty sea-freight packing protocols refined across decades of international exporting. Individual doors and frame sets are wrapped in scratch-resistant protective polyethylene film, corner-guarded with thick closed-cell EPE foam, strapped with structural tension banding, and enclosed inside IPPC-certified fumigated solid plywood crates with internal desiccants to absorb marine humidity. Crates feature reinforced forklift base skids for seamless discharge at the Port of Antwerp or Zeebrugge.
What are the production lead times and maritime shipping schedules to Belgium?
Factory production typically ranges from 25 to 35 business days following final CAD drawing approval and glass specification sign-off. Direct container ocean voyages from our nearby loading ports (Shenzhen or Guangzhou) to Antwerp/Rotterdam take approximately 28 to 34 days. We accommodate EXW, FOB, CIF, and full door-to-door DDP (Delivered Duty Paid) arrangements, handling all EU customs clearing, commercial invoicing, and transport directly to your construction depot or project jobsite in Belgium.
Initiate Your Belgian Fenestration Project With Factory-Direct Precision
Send our senior engineering desk your door schedules, architectural elevations, or structural CAD files. We will deliver a comprehensive proposal with thermal transmittance analysis and itemized pricing within 24 hours.