Factory-direct custom fabricated windows optimized for thermal efficiency, noise reduction, and structural longevity in European urban climate conditions.
In modern European architectural engineering, fenestration is no longer viewed merely as a building closure, but as an active, high-performance envelope element. As a leading Custom OEM UPVC Windows Factory & Exporter servicing Berlin and the broader European market, our manufacturing framework is anchored in stringent material selection, profile physics, and automated precision fabrication.
Unplasticized Polyvinyl Chloride (UPVC) offers superior thermal resistance compared to uninsulated aluminum and minimal maintenance requirements compared to timber. Our factory utilizes exclusively virgin, lead-free PVC resin stabilized with eco-friendly Calcium-Zinc (Ca/Zn) formulations, ensuring that extruded profiles resist intense ultraviolet radiation, extreme thermal cycling (-30°C to +70°C), and atmospheric oxidation without embrittlement or surface discoloration.
Engineered with 5, 6, and 7 internal thermal isolation chambers that break convection loops inside the frame, achieving profile heat transfer coefficients (Uf) as low as 0.76 to 1.1 W/m²K.
Corners are thermomechanically fused at 245°C into a single monolithic structural element, eliminating mechanical mechanical joints, screw holes, or corner gasket degradation points.
Heavy-gauge zinc-coated steel profiles (1.5mm to 2.0mm wall thickness) are inserted into the primary central chamber to guarantee high wind-load resistance (EN 12210 Class C5/B5).
Berlin’s urban landscape presents a unique blend of architectural heritage and aggressive modern sustainability targets. From the dense nineteenth-century Altbau residential blocks of Mitte, Prenzlauer Berg, and Charlottenburg to the high-density eco-districts of Europacity and Berlin-Pankow, window specifications must address distinct structural and environmental demands:
Challenge: Replicating historical narrow sightlines and arched profiles while meeting strict Denkmalschutz (historic preservation) thermal guidelines.
Solution: Custom OEM arched and vertical sliding sash UPVC systems with internal decorative bars and acoustic laminated glass packages.
Challenge: Strict compliance with the 2024 German Gebäudeenergiegesetz (GEG) requiring maximum overall window U-values (Uw) ≤ 0.95 W/m²K.
Solution: 88mm profile depth UPVC units with triple glazing, argon gas fill, Swisspacer warm-edge technology, and LoĒ³-366 coatings.
Challenge: Severe traffic noise along major arteries like Kurfürstendamm, B1/B5 highways, and elevated S-Bahn corridors.
Solution: Asymmetrical glass unit construction (e.g., 8mm outer toughened + 16mm argon gap + 6mm acoustic laminated inner glass) delivering sound insulation classes SSK 4 & SSK 5 (up to 47dB reduction).
Review the empirical engineering metrics of our custom OEM UPVC window series engineered for bulk procurement export to Germany:
| Profile Series / System | Overall Uw Value | Acoustic Rating (SSK) | Burglar Resistance | Water Tightness (EN 12208) | Air Permeability (EN 12207) |
|---|---|---|---|---|---|
| Series 70 Tilt & Turn | 1.1 W/m²K | SSK 3 (35-39 dB) | RC2 Standard | Class E900 (900 Pa) | Class 4 (600 Pa) |
| Series 82 High-Performance | 0.85 W/m²K | SSK 4 (40-44 dB) | RC2 / RC3 Optional | Class E1050 (1050 Pa) | Class 4 (600 Pa) |
| Series 88 Passivhaus OEM | 0.74 W/m²K | SSK 5 (45-48 dB) | RC3 High Security | Class E1200 (1200 Pa) | Class 4 (600 Pa) |
| Vertical Slide Altbau OEM | 1.2 W/m²K | SSK 3 (36-38 dB) | RC2 Standard | Class 7A (300 Pa) | Class 3 (600 Pa) |
| Arched & Shaped Custom | 1.0 W/m²K | SSK 4 (40-42 dB) | RC2 Standard | Class 9A (600 Pa) | Class 4 (600 Pa) |
Navigating the German structural fenestration market requires strict adherence to evolving federal energy laws and European safety directives. As an experienced exporter, our manufacturing protocols are aligned with key regulatory pillars:
1. Gebäudeenergiegesetz (GEG 2024) Alignment: The German Building Energy Act mandates aggressive reductions in operational building carbon footprints. Replacement windows in existing residential structures must achieve a maximum U-value of 1.3 W/m²K, while new construction subsidies (KFW 40 / KFW 55 standards) incentivize window packages with total Uw values under 0.8 W/m²K. Our triple-glazed factory units incorporate warm-edge spacers (Swisspacer Ultimate or TGI) to prevent thermal bridging at the glass edge.
2. Burglar Protection (DIN EN 1627 RC2 & RC3): Security is a primary decision driver for residential developers in Berlin. Our OEM production lines integrate German-engineered Maco or Siegenia multi-point locking mechanisms featuring steel mushroom cams, anti-drill plates, and reinforced strike plates that withstand mechanical intrusion attempts.
3. Sustainable Circular Economy & Lead-Free Formulations: In line with European Union REACH directives and the voluntary commitments of the vinyl industry, our UPVC profiles contain zero lead, cadmium, or toxic plasticizers. We use 100% recyclable Calcium-Zinc stabilizers, ensuring that dismantled profile off-cuts can be safely reprocessed into secondary industrial grade profiles.
We operate an end-to-end vertically integrated production complex featuring fully automated profile extrusion lines, four-head CNC fusion welding centers, automated glazing robotics, and comprehensive laboratory testing stations.
Technical guidance for architects, building contractors, window distributors, and real estate developers in Berlin.
Our OEM window systems are engineered specifically to meet or surpass GEG 2024 thresholds. By combining 6 or 7-chamber UPVC profiles with triple-pane low-emissivity glass packages (Ug = 0.5 W/m²K), argon gas fill, and warm-edge spacers, we achieve whole-window U-values (Uw) as low as 0.74 W/m²K. We provide official thermal simulation reports and NFRC/CE technical data sheets for all project schedules.
Yes. We regularly produce specialized OEM profiles for historic restoration and urban infill projects. This includes vertical sliding sash windows, radius arch tops, decorative transom lights, and internal/external Georgian grids (Muntin bars). Profiles can be finished with textured wood-grain foils or specialized grey laminates (such as RAL 7016 Anthracite) to match historical elevations.
Our production lines are calibrated to integrate premier European hardware brands including Siegenia-Aubi, Roto Frank, Winkhaus, and Maco. Standard options include micro-ventilation, tilt-first safety mechanisms, child-lock handles, and multi-point burglar resistance hardware certified to EN 1627 RC2 and RC3 standards.
We configure custom glass build-ups utilizing asymmetrical pane thicknesses (e.g., 8mm outer pane + 16mm argon cavity + 6mm inner pane) or PVB acoustic laminated glass interlayers. This acoustic dampening technology reduces low-frequency urban traffic, rail, and tram noise, achieving Sound Insulation Class SSK 4 (40-44 dB) or SSK 5 (45-48 dB) performance.
Standard manufacturing lead time for custom OEM orders is 15 to 25 working days depending on quantity and specialized lamination requirements. Windows are individual piece-labeled according to your architectural window schedule, wrapped in protective film, fitted with corner cushions, and packed on steel/wooden A-frame pallets for safe container shipping directly to your project site or warehouse in Germany.
All UPVC profiles come with a 10-Year Limited Factory Warranty against profile discoloration, warping, and atmospheric degradation. Insulating glass units carry a 10-year seal integrity warranty. Our manufacturing plant operates under ISO 9001:2015 standards, and all product lines bear CE certification demonstrating full compliance with European EN 14351-1 fenestration directives.
