Factory-direct fenestration systems tailored for Berlin modernizations, Neubau developments, and commercial architectural specifications.
Combining five decades of fenestration engineering with rigorous German DIN standard compliance for B2B distributors, developers, and general contractors in Berlin.
Since 1973, our state-of-the-art 77 Newark Street facility has maintained total ownership over extrusion cutting, corner fusion welding, double and triple insulated glass unit (IGU) assembly, and final hardware mounting. By keeping all operations under one roof, we guarantee exact millimeter tolerances essential for seamless site installation in Germany.
Every window series exported to Berlin undergoes strict third-party laboratory verification. Our sliding and casement assemblies carry official CE Marking under EN 14351-1, fully meeting German Building Energy Act (GEG 2024) thermal requirements, DIN 4108 sound insulation parameters, and DIN EN 1627 anti-burglary specifications.
We do not constrain specifiers to off-the-shelf catalog dimensions. Every frame is built to custom field measurements. Our shop routinely handles complex structural geometry including high-span lift-and-slide doors, arched head transom windows, custom muntin grill designs for historic Altbau facades, and ultra-slim sightline contemporary profiles.
Tailored structural fenestration solutions addressing the unique microclimates, urban acoustic challenges, and regulatory mandates of Berlin's diverse boroughs.
Boroughs: Mitte, Prenzlauer Berg, Charlottenburg, Schöneberg.
Renovating classic 19th-century Berlin Altbau properties requires balancing strict historical preservation regulations (Denkmalschutz) with high energy efficiency. Our specialized thermal-break aluminum and uPVC profile systems incorporate traditional French-style decorative bars, slim frame profiles, and concealed tilt-and-turn hardware, allowing architects to preserve original street elevation aesthetics while lowering overall building heating loads to modern standard levels.
Boroughs: Friedrichshain, Kreuzberg, Moabit, Lichtenberg.
New multi-family residential developments along major arterial roads and S-Bahn/U-Bahn tracks demand superior airborne sound insulation. Equipped with asymmetrical laminated sound-dampening glass packs and double perimeter EPDM seals, our sliding window lines reach acoustic protection levels up to Rw 45 dB. This completely suppresses high-frequency city traffic noise and ensures healthy indoor residential comfort (DIN 4109 compliant).
Locations: Potsdam, Wannsee, Zehlendorf, Grunewald, Brandenburg.
Upscale single-family suburban residences prioritize expansive glazed facades, seamless indoor-outdoor transitions, and strict heat conservation. Our heavy-duty thermal break sliding doors feature high-strength alloy extrusions supporting large triple-pane glass units weighing up to 400 kg per panel. Engineered warm-edge spacers and argon gas insulation maintain overall thermal values at Uw ≤ 0.80 W/m²K, effortlessly qualifying homes for KfW Efficiency House 40/40 Plus subsidies.
Sectors: Educational facilities, office complexes, medical centers, retail hubs.
Commercial building envelopes require low maintenance, elevated cycle durability, and reliable weather-sealing against driven rain and Berlin winter winds. Our anodized aluminum sliding window systems feature reinforced multi-chamber profiles, heavy-duty stainless steel tracks, and integrated security locking systems. They deliver superior operational longevity under continuous public usage while reducing ongoing facilities maintenance costs.
Detailed comparative performance parameters showing how our export fenestration systems fulfill German building codes.
| Performance Specification | German GEG 2024 Requirement | Standard Export Aluminum | Our CE-Certified Thermal Break Line |
|---|---|---|---|
| Overall Thermal Transmittance (Uw) | ≤ 0.95 W/m²K (Residential) | 1.6 – 2.2 W/m²K | 0.78 – 0.92 W/m²K (Passive standard) |
| Glazing Center Transmittance (Ug) | ≤ 0.70 W/m²K | 1.1 – 1.4 W/m²K | 0.50 – 0.60 W/m²K (Triple Low-E + Argon) |
| Acoustic Rating (Rw dB) | 35 – 42 dB (Urban areas) | 28 – 32 dB | 38 – 45 dB (Class 4 / 5 Soundproof) |
| Air Permeability (DIN EN 12207) | Class 3 Minimum | Class 2 | Class 4 (Highest Air Tightness) |
| Resistance to Wind Load (EN 12210) | Class C3 | Class B2 | Class C5 / B5 (Structural High-Rise) |
| Watertightness (DIN EN 12208) | Class 7A (300 Pa) | Class 5A (200 Pa) | Class E1050 (1050 Pa Extreme Storm) |
| Anti-Burglary Protection | DIN EN 1627 RC2 Recommended | Basic Cam Lock | RC2 / RC3 Certified (Multi-point) |
An engineering analysis of how advanced fenestration technology helps modern buildings meet Germany's net-zero climate goals.
With Germany's updated Building Energy Act (GEG 2024) mandating that newly installed heating systems run on at least 65% renewable energy (primarily heat pumps), minimizing envelope heat loss has become a central engineering requirement. Heat pumps operate most efficiently at low flow temperatures. If window sashes lose heat, indoor rooms drop below comfortable levels during cold Berlin winters.
Installing high-performance triple-glazed sliding windows with warm-edge composite spacers prevents perimeter thermal bridging. This maintains uniform inner glass surface temperatures, eliminates draft currents, and allows heat pump equipment to run efficiently without needing expensive backup electric resistance heaters.
Berlin developers and municipal building agencies increasingly require Environmental Product Declarations (EPD) to obtain DGNB or QNG sustainability certifications. Our aluminum alloys are manufactured using high proportions of recycled content, requiring 95% less energy than primary aluminum production without compromising structural tensile strength.
In addition, our lead-free uPVC formulations utilize calcium-zinc (Ca/Zn) eco-stabilizers instead of traditional heavy-metal additives. Every single window component—from extruded frame profiles and steel reinforcements to glass packs and EPDM gaskets—is designed for clean disassembly and 100% material recycling at the end of its building lifecycle.
Direct technical responses regarding certification, logistics, customs clearance, hardware specs, and warranty coverage for the Berlin market.