Full Arch Customized Curve Straight Leg Segment Curved Window
Seamless bent extruded 6063-T5 aluminum framing designed for Altbau restoration and luxury Grunewald villa retrofits demanding preservation harmony.
180k m²
Integrated Factory Base
Uw ≤ 0.8
W/(m²K) Passivhaus Class
100+
Global Patents & Testing Marks
25+ Yrs
Precision Fenestration Tech
Architectural Portfolios
Precision Fenestration & Entrance Systems for Berlin Architecture
Engineered for Germany's Building Energy Act (GEG 2024), urban sound abatement classes (SSK), and stringent European security standards (RC2/RC3).
Modern Style Aluminum Wooden French Ecological Door
Dual-composition profiles featuring weather-resistant external aluminum with sustainable interior acoustic wood cladding for urban luxury lofts in Mitte.
NOA Certified Wind Resistant Modern Aluminum Double Glazed Doors
Structural wind-load resistance exceeding 3000 Pa, thermal polyamide isolation breaks, and laminated safety glass rated for high-rise commercial installations.
Heavy-Duty Commercial Energy Efficient Glass Sliding Patio Doors
Lift-and-slide mechanism handling sash weights up to 400kg with thermal barrier polyamide struts to meet KfW-Efficiency House 40 standards.
Narrow Frame Aluminum Sliding Patio Doors with Concealed Track
Ultra-slim 20mm interlock sightlines maximizing passive solar heat gain, matched with recessed zero-threshold flush tracks for barrier-free living (DIN 18040-2).
Modern Profile Anodized Extruded Sliding Bifold Glass Door
Multi-panel folding wall configurations facilitating panoramic 95% aperture clears, tailored for Berlin cafes, rooftop penthouses, and commercial event spaces.
Minimalist Swing Soundproof Insulated Thermal-Break Door System
Triple-seal EPDM gasket system engineered with asymmetric acoustic laminate glass configurations to neutralize inner-ring S-Bahn and traffic noise.
Architectural Powder Coated Aluminum Glass Louver System
Adjustable solar shading louvers designed for natural cross-ventilation strategies and daylight optimization in sustainable commercial building envelopes.
Localized Engineering
Architectural Applications Across Berlin's Urban Fabric
From heritage Altbau rehabilitations in Charlottenburg to ultra-modern commercial districts in Mediaspree, fenestration must balance German statutory obligations with progressive architectural form.
Altbau Preservation & Denkmalschutz
Berlin retains thousands of historic residential buildings dating from the Gründerzeit era. Our custom arched and slim-profile aluminum profiles mirror classical proportions while integrating warm-edge multi-chamber thermal breaks. This allows developers to pass strict Monument Protection reviews while achieving contemporary thermal standards.
High-Density Urban Noise Mitigation
Developments bordering the Stadtbahn transit corridor, Torstraße, or Friedrichshain transit hubs face extreme decibel pollution. We configure asymmetric insulated glass units (IGUs) incorporating acoustic PVB interlayers, securing certified sound reduction values of Rw 42 dB to 48 dB (SSK 4 and SSK 5) without sacrificing slim frame sightlines.
Zero-Threshold Accessibility (DIN 18040-2)
Modern Berlin residential standards prioritize universal accessibility for lifelong living. Our sliding patio door systems integrate recessed floor tracks with sub-surface drainage channels, offering absolute 0mm barrier-free thresholds that seal reliably against driving rain and draft air infiltration according to DIN EN 12208 Class 9A.
Regulatory Insights
Market Trends: Navigating Berlin’s 2024–2026 Building Mandates
Procuring facade and entrance components for Germany requires strict compliance with federal laws and evolving architectural priorities.
GEG 2024 Energy Decarbonization
The Building Energy Act (Gebäudeenergiegesetz - GEG) demands stringent maximum U-values for transparent facades. Our high-performance systems leverage polyamide thermal barriers with polyolefin insulation foams and triple Argon-filled Low-E coatings, reaching overall system performance down to Uw = 0.8 W/(m²·K), easily fulfilling KfW Efficiency House 40 criteria.
Strict Burglar Resistance (DIN EN 1627)
With insurance guidelines tightening across urban Germany, ground-floor apartments and standalone offices require certified security. Our assemblies integrate multipoint motorized locking hardware, heavy-gauge internal corner cleating, and P4A/P5A safety glazing configured to achieve RC2 and RC3 resistance classes.
Circular Construction & EPD Verification
Berlin's municipal guidelines for circular building prioritize closed-loop lifecycle materials. We utilize architectural alloy grade 6063-T5 with recycled billet content, finished with chrome-free powder coating or anodization backed by traceable raw material sourcing and Environmental Product Declarations (EPD).
| Performance Criterion | German / European Standard | DERCHI Engineering Specification | Berlin Project Suitability |
|---|---|---|---|
| Thermal Insulation (Uw) | DIN EN ISO 10077-1 / GEG 2024 | 0.78 – 1.1 W/(m²·K) with Triple Low-E Glazing | Exceeds standard building and KfW 40 requirements |
| Acoustic Rating (Rw) | DIN 4109 Sound Insulation Class | 38 dB to 48 dB (SSK Class 3, 4, and 5) | Inner-city rail belts, airport corridors, busy arterials |
| Air Permeability | DIN EN 12207 | Class 4 (Maximum Airtightness: ≤ 3 m³/h·m²) | Blower-door test compliant for passive structures |
| Water Tightness | DIN EN 12208 | Class 9A / E1050 (Exceeding 1050 Pa pressure) | Exposed penthouse balconies and wind-vulnerable facades |
| Burglar Resistance | DIN EN 1627 – 1630 | RC2 / RC3 with security fittings and P4A glazing | Ground-floor retail, luxury villas, and bank premises |
Tier-1 Manufacturing Exporter
Guangdong Dejiyoupin Doors & Windows (DERCHI)
For more than 25 years, our 180,000 square meter industrial manufacturing base has stood as an engineering benchmark for export fenestration. Operating with over 600 skilled technicians, automated CNC extrusion cutting centers, and precision assembly lines, we provide European contractors direct-from-manufacturer pricing without intermediary trading overhead.
- Direct Factory Supply: 180,000 m² scale guarantees scalable batch scheduling for commercial developments.
- Certified Assurance: CE mark conformity, ISO 9001, AS 2047, and international UL fire ratings.
- BIM & CAD Integration: Dedicated structural engineers deliver free shop drawings tailored to German statics (Statik).
- Robust Export Logistics: Full sea freight fumigated steel-cage crating delivered straight to Hamburg or jobsite Berlin.
Procurement Directives
Frequently Asked Questions for Berlin Buyers & Importers
Clear, technically rigorous answers covering German code compliance, logistics coordination, and bespoke structural customization.
Can DERCHI aluminum and glass doors achieve compliance with Germany's GEG 2024 regulations?
Yes. Germany's Building Energy Act (GEG) sets demanding envelope heat loss ceilings. Our high-tier profiles utilize 34mm to 42mm multi-chamber glass-fiber reinforced polyamide (PA66 GF25) thermal breaks combined with triple-glazed units using warm-edge spacers (Swisspacer or Technoform) and Argon gas fillings. This setup produces overall heat transfer coefficients (Uw) below 0.85 W/(m²·K), satisfying not only GEG thresholds for new construction and refurbishments but also meeting Passivhaus performance targets. Detailed thermal finite-element calculation reports can be provided during the submittal phase.
How do you handle CE conformity, Declaration of Performance (DoP), and local German static checks?
All door assemblies destined for the European Union carry verified CE markings backed by third-party testing in accordance with DIN EN 14351-1 (Windows and external doors). For every commercial consignment, we issue a formal Declaration of Performance (DoP) detailing acoustic ratings, watertightness, wind-load resistance, and thermal transmittance. Our internal engineering department provides structural statics calculations (nachweisbare Statik) detailing moment of inertia (Ix/Iy) for wind-load exposure across greater Berlin's wind zones (Windzone 1 & 2).
What is the shipping procedure and timeline from your factory to construction sites in Berlin?
Following digital shop drawing sign-off and prototype verification, standard factory production takes 25 to 35 business days. Cargo is packed in fumigated plywood cases with customized steel-channel A-frames to prevent deflection or glass fracture. Shipping from our port in Foshan or Shenzhen to the Port of Hamburg typically spans 28 to 32 days ocean transit, followed by 48-hour bonded intermodal container haulage directly to your jobsite in Berlin, Potsdam, or Frankfurt (Oder). We handle FOB, CIF, or complete DDP (Delivered Duty Paid) clearance alongside your appointed German customs clearing agent.
Are hardware preps compatible with European DIN standard euro-profile cylinders and smart access controls?
Yes, our CNC milling machinery is programmed for European standard hardware pockets. We regularly prep doors for German multi-point lock systems (including GU, Siegenia, and Roto) and integrate standard DIN PZ profile lock cylinders. If your architectural scheme calls for motorized access control, our doors feature internal cable channels prepared for biometric finger scanners, e-key systems, and building automation interfaces compatible with KNX or central access management protocols.
Can you provide custom profiles suitable for Berlin's historical monument preservation offices (Untere Denkmalschutzbehörde)?
Yes. Historic preservation in districts such as Mitte, Prenzlauer Berg, or Charlottenburg-Wilmersdorf frequently requires exact replication of original sightlines, transom lights, simulated divided lites (Wiener Sprossen), and arched geometries. Our manufacturing facility possesses dedicated roll-bending and profile milling tools capable of reproducing heritage segment arches, basket arches, and decorative profile moldings, giving architects approval assurance from local preservation authorities without sacrificing state-of-the-art airtightness or double/triple glazing efficiency.
Accelerate Your Next Berlin Project with Factory-Direct Engineering
Submit your door schedules, CAD architectural designs, or specification briefs. Our English and German-fluent technical engineering staff provides full static assessments, U-value calculations, and commercial estimates within 24 hours.