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Discover our top-tier precision entrance systems tailored with advanced polyamide thermal break profiles, acoustic dampening glass, and multi-point security locking for Bangladesh's demanding architectural projects.
Bangladesh is experiencing an unprecedented construction revolution. From the dynamic commercial skyscrapes of Dhaka's Motijheel, Kawran Bazar, and Gulshan Avenue, to the flourishing industrial zones in Gazipur, Savar, Narayanganj, and the port city of Chittagong, energy conservation has moved to the center stage of modern structural engineering.
Operating in a tropical monsoon climate characterized by scorching summer temperatures reaching up to 40°C, extreme relative humidity (often exceeding 85%), and heavy seasonal precipitation, conventional doors fail rapidly due to thermal warping, air infiltration, and corrosion. DERCHI's thermally isolated entrance systems provide an impermeable thermal barrier, drastically cutting HVAC power consumption in compliance with the Bangladesh National Building Code (BNBC) and international green architecture benchmarks.
DERCHI Doors and Windows (Guangdong Dejiyoupin Doors and Windows Co., Ltd.), an officially certified enterprise recognized by the world-class media Xinhua News Agency as a "China Famous Brand", specializes in the research, development, and manufacturing of high-end energy-efficient architectural doors and windows for the global market.
With modern smart manufacturing infrastructure, DERCHI provides developers, architects, and direct project importers in Bangladesh with one-stop customized solutions—ranging from initial CAD/BIM architectural integration to customized manufacturing, rigorous quality inspection, and ocean freight logistics to Chittagong Port and Dhaka Airport ICD.
Combining world-class German precision engineering with large-scale manufacturing advantages to guarantee unmatched product lifespan, thermal performance, and on-time project completion.
Spanning 80,000 square meters of production facilities with an annual output exceeding 1,000,000 m², ensuring bulk commercial orders for high-rise towers and industrial parks are delivered ahead of project milestones.
Led by 30+ senior fenestration engineers holding over 100 patents in multi-cavity thermal break structures, hidden hardware systems, smart biometric access, and extreme climate weatherstripping.
Certified by international testing authorities including CE, ISO9001, AAMA, and AS2047. Over 100,000 benchmark projects executed across North America, Europe, Australia, the Middle East, and South Asia.
Full flexibility in dimensions, profile depths (70mm to 120mm), glazing specs (triple-pane Low-E Argon), finishes (AkzoNobel powder coating, fluorocarbon, anodized), and custom hardware integration.
Heavy-duty structural integrity incorporating multi-point anti-pry locking mechanisms, bullet-resistant steel armor plates, and reinforced stainless steel hinges capable of bearing 500kg+ door leafs.
Engineered with German Technoform polyamide insulating bars and warm-edge spacers, slashing thermal bridging and reducing indoor cooling energy costs by up to 35% in tropical Bangladesh weather.
DERCHI operates an integrated manufacturing ecosystem equipped with six automated glass processing lines, five intelligent high-bay raw material warehouses, and three German automated thermal strip insertion machines. Every entrance door system passes through 168 meticulous manufacturing processes and 38 multi-level quality inspections.
Independent door performance laboratory conducting air permeability, wind pressure, water tightness, and acoustic testing.
168 standardized production processes with 38 quality inspection gates ensuring zero defect tolerances prior to export packaging.
Equipped with eight internationally advanced automated CNC cutting, milling, and assembly production lines.
High-precision German thermal barrier rolling machines ensuring airtight structural integrity and exceeding delivery expectations.
From elite residential sanctuaries in Gulshan to heavy-duty industrial complexes in DEPZ and CEPZ, explore how our systems adapt to local architectural typologies.
Locations: Gulshan, Banani, Baridhara Diplomatic Zone, Bashundhara R/A, Dhanmondi.
Ultra-luxury residences demand expansive grand entrance pivot doors up to 4 meters high. DERCHI provides custom wood-grain finishes, smart biometric recognition (face/fingerprint/Bluetooth), and thermally isolated glass that keep luxury interiors pristine, quiet, and cool.
Locations: Savar EPZ, Adamjee EPZ, Gazipur RMG Hubs, Comilla EPZ, Mirsarai SEZ.
Green textile and apparel industrial facilities require heavy-traffic, air-tight, thermally broken entrance vestibules to maintain indoor air quality, humidity control, and energy savings required for USGBC LEED Platinum audit benchmarks.
Locations: Motijheel C/A, Agrabad Commercial Area (Chittagong), Cox's Bazar, Kuakata.
Coastal and commercial buildings face relentless wind pressure, torrential monsoon rains, and marine salt air. Our marine-grade SUS316/cast aluminum exterior doors with hurricane-rated impact glazing prevent corrosion and water ingress.
The iron army of doors and windows collaborates throughout the entire chain from research and development to production, deeply cultivating quality and scaling new heights, using cohesion and hard power to create industry benchmarks. Over 600+ professional staff members are dedicated to servicing your requirements.
A full chain of dedicated engineers, project managers, and logistics specialists will serve you.
Seamless execution spanning material extrusion, glass processing, CNC assembly, and international shipping.
Deeply cultivating quality and scaling new heights through rigorous multi-stage laboratory testing.
Using organizational cohesion and hard industrial capability to set global energy efficiency benchmarks.
There are more than 700 exclusive shops spread out in many cities across China. We serve more than 100 countries around the world and have provided premium architectural door and window products and services for 100,000+ landmark projects.
Explore all 8 flagship entry door configurations engineered for extreme energy conservation, acoustic isolation, modern luxury aesthetics, and multi-tier security protection.
Essential guidance on importing energy-efficient doors from China to Bangladesh, shipping logistics, customs clearance, and building code compliance.
DERCHI doors incorporate multi-cavity 6063-T5 aluminum extrusions combined with German Technoform PA66 GF25 thermal breaks. This breaks conductive heat transfer between hot exterior air (up to 40°C) and conditioned interior spaces. Together with Argon gas-filled Low-E double/triple glazing, our systems reduce solar heat gain coefficient (SHGC) and lower cooling loads by 30–40%.
Standard manufacturing lead time is 25–35 days depending on bespoke design complexity. Ocean freight from our Guangdong manufacturing base (Nansha/Shekou/Yantian ports) to Chittagong Port typically takes 12–16 days. For urgent sample verification or fast-track villa projects, air cargo to Hazrat Shahjalal International Airport (DAC) takes 3–5 days.
Yes. Our door systems are tested under AAMA, NFRC, and EN standards for air infiltration (Class 4), water tightness (up to 900 Pa), and structural wind load (up to 5000 Pa). They fulfill all BNBC envelope criteria and contribute directly to LEED Energy and Atmosphere (EA) and Materials and Resources (MR) credits.
For coastal and high-salinity zones, we utilize marine-grade SUS316 stainless steel hardware, AkzoNobel Qualicoat Class 2/3 powder coating, or 25-micron architectural anodization. These finishes prevent surface pitting, oxidation, and blistering over decades of exposure to maritime humidity.
