Expertise Enterprise Profile & Core Competency
The Engineering Shift: Why Leading Developers Choose Single-Source Whole-House Custom Fenestration
In today's complex construction market, procurement directors, façade engineers, and high-end residential developers face unprecedented performance scrutiny. Multi-source procurement—sourcing pivot doors from one supplier, sliding systems from another, and casement or curtain wall glazing from third parties—routinely causes severe site delays, color mismatched powder-coatings, clashing perimeter sub-frames, and contentious multi-party warranty claims when air infiltration or water leakage occurs under severe weather events.
Guangdong Dejiyoupin Doors and Windows Co., Ltd. (DERCHI) solves this structural friction by engineering unified, end-to-end Whole-House Custom Doors and Windows. From our expansive 180,000 m² state-of-the-art smart production base in Foshan, China, we operate dedicated fabrication lines that unify structural design, thermal performance calibration, glass lamination, hardware matching, and architectural finishes across the entire building envelope.
Recognized as a prestigious "China Famous Brand" by Xinhua News Agency, our engineering protocols guarantee exact visual alignment—from flush minimalist sightlines to uniform architectural anodized or fluorocarbon finishes—while strictly adhering to national building codes such as Australian Standard AS 2047, New Zealand NZS 4211, European CE, and North American NFRC/CSA standards.

100+ independently developed utility & invention patents

Digital smart factory with complete 360° QA and QC traceability

"China Famous Brand" authenticated by Xinhua News Agency

Comprehensive global testing: AS 2047, CE, NFRC, CSA, Energy Star