DERCHI Aluminum Windows and Doors Factory

Aluminum Doors & Windows FAQ

Direct Answers from the Manufacturer

Common Questions About DERCHI Engineering & Export

Everything overseas developers, builders, architects, and trade partners need to know regarding aluminum systems manufacturing, technical specifications, and project logistics.

01 Are you a direct manufacturing factory or an export trading company?

Guangdong Dejiyoupin Doors and Windows Co., Ltd. is a dedicated OEM/ODM manufacturer headquartered in Foshan, Guangdong, the epicenter of China’s high-precision aluminum extrusion and processing industry.

We own and operate an expansive modern intelligent production facility spanning 180,000 square meters staffed by over 600 skilled technicians and senior facade engineers. With an annual production output exceeding 1,000,000 m², we provide direct-to-site engineering solutions without middleman markups, ensuring stringent quality control and verified supply reliability.

Key Factory Advantage: 100% in-house precision CNC machining, automated glass sealing, and independent R&D holding over 100 national patents.
02 What architectural products and custom solutions do you manufacture?

Our core production lines encompass complete architectural envelope systems engineered to project specifications, including:

  • Thermal Break Aluminum Windows: Outward/inward casement, tilt-and-turn, oversized picture windows, and heavy-duty sliding windows.
  • Architectural Door Systems: Multi-panel bi-fold doors, slim-frame lift-and-slide doors, swing doors, and luxury entrance pivot systems with patented multi-point locking.
  • Engineered Sunrooms & Solariums: Structural glass roofs and enclosures designed for patio extensions and terrace living.
  • Solid Wooden Interior Doors: Pre-finished timber entry and interior doors coordinated with aluminum profile finishes for complete villa packages.

All series are custom manufactured to millimeter-exact project dimensions with tailored glazing and profile thicknesses.

03 What project data is required to get a precise quotation and engineering plan?

Because every architectural opening has unique structural and thermal demands, providing complete technical criteria allows our team to generate a binding commercial quote and shop drawing proposal within 24 to 48 hours:

  • Architectural Schedules: Floor plans, elevations, window/door schedules, or CAD drawings (DWG/PDF).
  • Profile & Finish: Profile thickness (e.g. 1.4mm to 3.0mm), powder coating color (RAL codes), PVDF fluorocarbon, or marine-grade anodizing.
  • Glazing Specification: Double/triple Low-E insulating glass units (IGU), argon fill, acoustic laminated glass, or hurricane impact interlayer.
  • Site Environmental Conditions: Project location, building height, coastal distance, wind load demands, and seismic resistance requirements.
04 What are the production schedules and ocean shipping transit times?

Factory fabrication typically takes 25 to 35 business days following formal shop drawing approval and initial production deposit confirmation. For custom extruded dies or custom anodized finishes, timelines range around 40 days.

We provide full-container load (FCL) and consolidated (LCL) freight booking directly from Shenzhen or Guangzhou ports to all primary commercial shipping gateways across South America:

  • Brazil: Santos, Paranaguá, Rio de Janeiro (Approx. 32–38 days ocean transit)
  • Pacific Coast: Callao (Peru), San Antonio/Valparaíso (Chile), Guayaquil (Ecuador) (Approx. 28–35 days ocean transit)
  • Atlantic & Caribbean: Buenos Aires (Argentina), Montevideo (Uruguay), Cartagena/Buenaventura (Colombia) (Approx. 35–42 days)
05 What commercial quality warranty and performance assurance do you offer?

Every system shipped by Guangdong Dejiyoupin Doors and Windows Co., Ltd. carries a formal 10-year manufacturer warranty covering structural profile integrity, extrusion warping, and fabrication craftsmanship.

Surface coatings (AkzoNobel powder coatings and PPG fluorocarbon finishes) maintain long-term resistance to peeling, blistering, and UV fading even in high-solar Andean elevations. Insulated double/triple glazing units carry hermetic seal guarantees against internal condensation, while German hardware mechanisms (HOPPE, Siegenia, GU) are rated for over 50,000 mechanical operating cycles.

06 What engineering documentation and technical support are supplied post-order?

We believe in end-to-end technical stewardship so your installation contractor operates with zero ambiguity on site:

  • Shop Drawings: Fully dimensioned CAD submittals including anchor fastener intervals, sill flashing details, and wall boundary conditions.
  • Pre-Assembly Testing: Test assembly of complex corner configurations, pivot doors, and oversized bifold leaves at the factory prior to packing.
  • Installation Guides: Detailed digital installation manuals and step-by-step video demonstrations tailored to your specific system configuration.
  • Engineering Dispatch: For qualifying multi-unit residential developments, resort compounds, and commercial facades, our technical field engineers can be dispatched for on-site quality audit and installation oversight.
07 Are DERCHI window and door systems certified to international building standards?

Yes. DERCHI products are independently laboratory tested to comply with the most stringent global fenestration performance standards, ensuring compliance for architects and general contractors worldwide:

  • North America: NFRC thermal metrics (U-factor, SHGC) and CSA/AAMA physical performance standards.
  • Australia & Oceania: AS2047 and AS1288 wind pressure, water penetration, and air infiltration compliance.
  • Europe: CE mark conformity, EN 14351-1 standards, and ISO 9001 quality management certified.
  • Structural & Hurricane: Severe wind-load resistance and impact testing certified up to 5000 Pa cyclic loading.
08 How do you ensure zero damage during transoceanic container handling?

Export packaging is engineered to withstand weeks of ocean freight movement, forklift handling, and humid marine atmospheres:

All aluminum surfaces are coated with protective low-tack surface film. Units are wrapped in EPE shock-absorbing foam and sealed with water-resistant stretch wrap. Units are then secured in custom-built fumigation-free solid plywood crates reinforced with steel strapping and corner corner-buffers.

Each individual crate is labeled with QR codes and opening designations matching your architectural floor schedule for seamless sorting upon arrival at the job site.

25+ Years Industry Manufacturing Heritage
180,000 m² Intelligent Factory Footprint
18,000+ Completed Worldwide Projects
10-Year Direct Factory Warranty

Have a Specific Project or Specification Inquiry?

Our senior facade engineering team is ready to evaluate your architectural drawings, calculate wind load parameters, and provide factory-direct budget estimates.

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