Engineered to meet strict European thermal and structural requirements, offering ultimate architectural freedom.
Top-hinged external ventilation systems with multi-point locking mechanisms, ideal for coastal wind loads.
Superior thermal break profiles ensuring low U-values in accordance with German GEG standards.
Integrated thermal-acoustic architectural window systems designed for urban office buildings.
Classic European dual-action design providing versatile ventilation and maximum perimeter sealing.
Hamburg, as Germany's major gateway to the world and its largest port city, features a highly demanding architectural environment. Modern developments such as HafenCity, alongside the historic Speicherstadt and commercial hubs in Altona, demand window and facade systems that combine cutting-edge thermal performance with extreme physical resilience.
Building in the Hamburg Metropolitan Region requires strict adherence to federal and local regulations, specifically the Gebäudeenergiegesetz (GEG), which mandates stringent energy limits for new construction and retrofits. The proximity to the Elbe River and the North Sea exposes buildings to high wind loads, driving rain, and corrosive maritime air containing high concentrations of salt. Consequently, aluminium profiles and structural glass must meet severe classification standards:
In Hamburg's urban center, acoustic protection is legally mandated. Our double and triple insulated glass configurations provide sound insulation up to Rw = 48 dB, shielding interior spaces from harbor, rail, and heavy street traffic.
Founded in 2006, Jiangsu Guoxin Glass Co., Ltd. has established itself as an industry-leading manufacturer of high-performance architectural envelope systems over a span of two decades. Our expertise lies in the structural integration of premium thermal-break aluminium window profiles with advanced safety and architectural glass, including fireproof glass, laminated glass, and high-efficiency insulated glass units (IGUs).
Operating a 20,000+ square meter state-of-the-art facility, our factory integrates automated precision cutting, CNC machining, and specialized glass laminating autoclaves. This allows us to maintain strict quality standards that easily meet European Union and German national standards (CE, DIN, EN).
Decarbonization, high-performance thermal barriers, and technical alignment with German energy guidelines.
Our polyamide thermal break profiles are paired with triple-pane low-E glass filled with 90% Argon gas, achieving U-values as low as 0.76 W/(m²K), matching the Passivhaus standards required for modern German infrastructure projects.
All windows are certified to DIN EN 14351-1. We provide full Declaration of Performance (DoP) documentation detailing air permeability (Class 4), water tightness (Class 9A or higher), and structural stability properties.
Direct maritime freight services from our production hubs directly to the Port of Hamburg (Hafen Hamburg). We offer customized crating, full customs clearance assistance, and precise delivery scheduling matching your construction timeline.
| Performance Standard | Required Limit (GEG Germany) | Guoxin Aluminium Window Performance | Compliance Verification |
|---|---|---|---|
| Uw Value (Window Heat Transfer) | ≤ 1.3 W/(m²K) for standard buildings | 0.76 - 1.1 W/(m²K) | DIN EN ISO 10077-1 / EN 12567-1 |
| Air Permeability | Class 3 | Class 4 (Highest Rating) | DIN EN 12207 |
| Water Tightness | Class 7A (300 Pa) | Class 9A to E900 (≥ 600 Pa) | DIN EN 12208 |
| Acoustic Insulation (Rw,p) | Depending on zone (typically 35-40 dB) | Up to 48 dB (with Triple Laminated Glass) | DIN EN ISO 717-1 |
Our state-of-the-art production facility houses multiple advanced production lines, each equipped with cutting-edge technology.
Thermally insulated sliding doors, casement systems, and bifold units built with structural-grade aluminum profiles.
Tested fire safety glass providing integrity and heat isolation from 30 to 120 minutes for public buildings.
Utilizing high-performance SGP (SentryGlas) and PVB interlayers for storm resilience and blast protection.
Equipped with Low-E coatings and warm-edge spacers for optimal building envelopes.
Multi-layer polycarbonate composites tested for bank, government, and VIP residence security.
3D laser-engraved glass, decorative patterns, and specialized finishes for architectural facades.
Optimized configurations engineered for the local urban and climatic landscape.
High-rise residential and commercial office structures on the waterfront are subjected to extreme wind loads and continuous saltwater exposure. For these environments, we recommend:
In highly populated districts characterized by mixed residential-industrial use, acoustic insulation is the primary design driver. Our sound-control solutions include:
Historic retrofits require maintaining architectural heritage while upgrading thermal insulation to current GEG regulations. Our solutions feature:
How we are innovating window systems for the buildings of tomorrow.
Our research and development team is focused on expanding electrochromic (smart) glass integrations. Utilizing predictive daylight algorithms that factor in outdoor temperatures, sun angle, and building orientation, these window systems automatically adjust solar heat gain coefficients (SHGC) dynamically. This minimizes glare and solar heat loading during warm summer months, significantly lowering cooling costs without requiring external shading structures that disrupt facade clean lines.
In response to European directives on circular economy, our aluminium extrusion partners utilize up to 75% recycled end-of-life aluminium. Our production facilities optimize waste recovery, ensuring glass cullet is systematically recycled back into raw material pipelines. This low-embodied carbon design aids architects in achieving BREEAM and DGNB green building certifications for their projects in Germany.
To support Hamburg's advanced engineering firms, we offer comprehensive BIM (Building Information Modeling) objects for our entire window range. From initial design planning through manufacturing and structural testing, our engineers work alongside architectural teams using CAD/BIM modeling to pre-emptively calculate static loads, thermal breaks, and structural connections, dramatically accelerating project approvals.
Technological Fact:
By integrating warm-edge spacer technology with structural silicone sealing, the condensation risks along window frames in high-humidity coastal zones (like Hamburg) are reduced by over 92% compared to standard aluminium spacers.
Our high-performance products have been utilized in iconic structures worldwide, proving our ability to execute complex architectural projects.
"Quality First, Customer First, and Credit-Based" is the foundational philosophy behind our operations. Our fully integrated service allows us to assist Hamburg design firms with custom-molded aluminium extrusions, structural structural calculations, customized glazing packages, and comprehensive warranty coverage.
Awarded the "World's Largest Guinness" certificate, this 38.8-meter-high organic structure showcases our capability to fabricate complex, non-planar double-curved structural facades. Built with customized structural aluminium extrusions and thousands of uniquely sized glass panels, it highlights our precision engineering for complex geometries.
Handling heavy passenger volumes, this double-sided elevated transit station features thousands of square meters of our laminated safety glass. Engineered to resist structural vibrations, wind pressure, and architectural load, it is a testament to the safety and durability of our structural glazing systems.
Standing as the 7th tallest building globally, the 89-story tower relies on our insulated glass solutions for its advanced curtain wall facade. The stepped architectural design balances aesthetics with functional performance, ensuring efficient thermal insulation and solar heat gain control.
Our reflective safety glass is used in major public and commercial installations globally, integrating massive architectural structures seamlessly into their historic environments. By combining design aesthetics with structural energy performance, we deliver multiple key benefits to architectural teams.
Exporting to over 40 countries, including Germany, Sweden, Finland, Norway, Italy, the UK, and North America. We provide localized compliance support, ensuring that shipping, documentation, and structural testing meet the destination country's regulations.
Jiangsu Guoxin Glass Co., Ltd. operates in accordance with the ISO 9001:2015 Quality Management System. Our products undergo rigorous testing processes to secure CE certifications, ensuring compliance with European Union directives for structural safety, insulation, and environmental parameters.
Factory-direct wholesale architectural solutions with fully customizable profiles, dimensions, and colors.
High-stability architectural fixed frames for modern facades, offering maximum daylight transmittance.
Space-saving horizontal sliding systems with high-durability rollers and weather-strip seals.
High-quality architectural textured glass options perfect for modern interior design and facades.
Heavy-duty tracks and ergonomic handles for seamless transition between interior and exterior spaces.
Custom designs ensuring maximum ventilation, weather tightness, and long-term wind resistance.
High-strength fire-rated safety glass, certified for industrial and public structure separations.
Fully tailorable colors, shapes, patterns, and safety properties to match specific project plans.
Ultra-durable glazing solutions with high post-breakage strength, suitable for balustrades and skylights.
Addressing regulatory compliance, engineering performance, and international supply chain logistics.
Contact our structural engineering team today to receive CAD details, compliance documentation, performance specifications, and competitive wholesale quotes.
Send Inquiry Now — Get a Direct Factory Quote
Guoxin