Aluminum Doors And Windows FAQ

Guangdong Dejiyoupin Doors and Windows Co., Ltd. is a high-technology architectural door and window manufacturer operating an extensive 70,000 m² state-of-the-art intelligent manufacturing facility, with group facilities expanding to 180,000 m². We employ more than 600 skilled technicians, craftspeople, and over 30 full-time R&D engineers.

Unlike export trading intermediaries, every window and door system is designed, extruded, thermally isolated, CNC processed, and glazed within our own facilities. With over 25 years of specialized experience, our brand is recognised for consistent dimensional tolerances, strict traceability, and robust export crating engineered for long-distance marine transport.

We manufacture a comprehensive portfolio of thermally insulated architectural facade solutions tailored for residential developments, luxury villas, commercial towers, and hospitality projects:

• Thermal Break Windows: European-style inward tilt-and-turn systems, outward casements, integrated acoustic sashes, panoramic picture fixed lights, and horizontal sliding windows.
• Engineered Aluminium Doors: Multi-panel concertina bi-folding doors, ultra-slim panoramic sliding systems, heavy-duty lift-and-slide patio doors, French swing casements, and armoured security entry doors.
• Complete Building Solutions: Insulated glass conservatories, snow-load rated solariums, glass curtain wall segments, and interior solid wooden entry doors.

To provide European contractors, quantity surveyors, and project developers with a detailed bill of materials and competitive CIF/FOB pricing, our engineering department reviews the following data:

• Architectural floor plans, elevation schematics, or CAD opening schedules with precise structural opening dimensions.
• Target thermal performance values (such as required overall Uw/Ud values) to ensure compliance with regional mandates like GEG in Germany, RE2020 in France, or Part L in the UK.
• Glass build-up requirements: double or triple insulated glazing units (IGU), toughened or laminated acoustic safety glass, Low-E coatings, warm-edge spacers, and argon gas cavity filling.
• Architectural finish choices: Qualicoat-certified architectural powder coating (standard RAL color palette), metallic fluorocarbon PVDF, or marine-grade anodizing.
• Hardware and locking specifications, including our patented multi-point anti-burglary hardware configurations.

Our standard manufacturing cycle averages 25 to 35 calendar days following deposit confirmation and approved final shop drawings. Because large commercial developments and residential villa projects operate on precise site readiness schedules, our ERP planning system enables phased manufacturing runs tailored to container load sequences.

We provide full container load (FCL) shipping directly to major European ports including Rotterdam, Hamburg, Antwerp, Le Havre, Felixstowe, Valencia, and Genoa, complete with fumigated plywood crating, perimeter foam cladding, and internal desiccants to safeguard all coated surfaces.

Guangdong Dejiyoupin Doors and Windows Co., Ltd. stands behind every fabricated unit with a comprehensive 10-Year Factory Warranty. This coverage encompasses:

• Structural stability and dimensional retention of 6063-T5/T6 architectural aluminum alloy extrusions against distortion and structural fatigue.
• Resistance against peeling, blistering, cracking, or severe chalking on all Qualicoat architectural powder-coated and anodized surfaces.
• Hermetic seal integrity of insulated glass units against atmospheric condensation, desiccant degradation, and internal fogging.
• Smooth mechanical functionality of multi-point European locking assemblies, high-load rollers, and reinforced concealed hinges.

We understand that proper site installation is essential for airtightness and water management. Our engineering support structure includes:

• Detailed 2D/3D CAD shop drawings illustrating installation perimeter interfaces, sub-sill flashing, expansion gaps, and thermal break alignments.
• Bilingual installation documentation, complete with exploded-view schematics, torque specifications, and sealing guidelines.
• HD video installation tutorials demonstrating sash adjustment, corner gasket sealing, and glazing wedge calibration.
• Remote video consultations between our senior facade engineers and your local installation crews. For complex commercial projects, site supervisor deployment can be arranged.

Yes. All exported products conform to European CE marking requirements under EN 14351-1, verified for structural air permeability, watertightness under driving rain, and wind resistance. All fabrication processes are managed under strict ISO 9001 certified quality management systems.

In addition, our systems are certified across multiple global jurisdictions, holding NFRC and AAMA credentials (USA), AS2047 and AS1288 (Australia), CSA (Canada), and Energy Star compliance. For bespoke large-scale projects requiring dedicated project-specific test reports, we coordinate third-party testing with internationally recognized laboratories.

Yes. Meeting demanding European energy efficiency standards such as GEG in Germany, RE2020 in France, and Part L in the United Kingdom is a core competency of our R&D engineering division.

We combine multi-chamber polyamide thermal barriers (PA66 GF25) up to 34mm wide, EPDM central gaskets, and triple-glazed Low-E insulated glass units with warm-edge spacers and 90% argon filling. This configuration achieves overall thermal transmittance values as low as Uw ≤ 0.8 W/(m²·K), making our systems suitable for low-energy and Passive House developments.