Commercial Double Glazed Aluminium Windows & Doors
- Acoustic insulation: Up to 38 dB
- EPDM dual-perimeter continuous seal
- Heavy commercial rail profiles
Product Portfolio
High-Performance Architectural Fenestration Systems
Explore our export-certified architectural doors and structural windows engineered to handle severe monsoon wind pressures, high ambient humidity, and expansive structural spans. Every system is manufactured under ISO 9001 protocols with full CAD shop drawing verification.
Classic Crittall Style Slim Frame Aluminum Windows
- Minimalist 22mm visible sightlines
- Integrated thermal barrier system
- Architectural fluorocarbon powder coating
Minimalist Aluminum Tempered Glass Swing Door
- Anti-mildew & humidity impervious
- German silent magnetic latch lock
- 8mm/10mm toughened safety glass
Luxury Armored Bulletproof Secure Entrance Doors
- Multi-point alloy anti-burglary deadbolts
- Internal reinforced ballistic steel core
- Biometric access integration ready
Wazzor Top-Out Gas Strut Awning Window
- Heavy-duty nitrogen gas lift struts
- 90° unobstructed opening aperture
- High-grade weather-shield compression
Custom Double Sliding Framed Glass Door
- SUS304 precision roller carriages
- Nano self-cleaning anti-water mark glass
- Corrosion-resistant anodized tracks
UL Listed Commercial Fire Rated Door
- UL 10C certified up to 3-hour fire protection
- Thermal intumescent perimeter seals
- Heavy commercial panic hardware options
NFRC Double Insulated Casement & Lift-Slide System
- NFRC certified thermal U-factor ratings
- Double argon-filled tempered Low-E glass
- Heavy-load multi-wheel bogies
Technical Whitepaper
The Engineering Mechanics of Lift & Slide Systems
Unlike standard inline sliding doors that drag brush seals across tracks causing rapid friction degradation, Lift and Slide doors utilize internal cam-action gearing. Turning the ergonomic 180° handle engages heavy-duty bogies, lifting a sash up to 400 kg off its compression gaskets for effortless, finger-touch operation.
Cam-Action Elevation
Rotating the actuator handle lifts the entire sash 6-8mm off the frame. The active weight transfers from perimeter rubber seals directly onto dual stainless steel bogies, eliminating friction during travel.
Hermetic Hydro-Sealing
When dropped into the closed position, the multi-hundred-kilogram deadweight compresses high-resilience vulcanized EPDM gaskets against multi-chamber profiles, blocking driving rain and wind ingress.
Polyamide Thermal Break
Reinforced PA66 nylon thermal barriers isolate outer and inner structural profiles. This prevents solar radiant heat transfer into luxury interior spaces, lowering building HVAC loads.
AS 2047 Structural Rating
Certified to endure ultimate design pressures exceeding 4500 Pa (N6 Level). Sash frames maintain structural rigidity without flex or water penetration under severe sub-tropical cyclonic events.
Localized Engineering
Engineered for Bangladesh’s Tropical & Urban Demands
From the dense, noisy urban landscape of Dhaka to the high-salinity maritime climate of Chittagong and Cox’s Bazar, fenestration faces severe environmental stresses. Here is how our custom configurations address the localized building challenges of Bangladesh.
DHAKA HIGH-RISE RESIDENCES
Gulshan, Banani & Dhanmondi Penthouses
High-end urban apartments require immense structural wind loading thresholds at altitudes above 20 stories, combined with acoustic attenuation against intense ambient city noise.
- Sound Isolation: Double/Triple IGU achieves STC 40+ dB reduction
- Monsoon Drainage: Concealed sub-sill drainage prevents overflows
- Safety Glass: 6mm Low-E + 12A + 6mm Toughened safety glass
COASTAL & INDUSTRIAL MARITIME
Chittagong & Cox's Bazar Waterfronts
Coastal developments suffer from airborne saline particles and cyclic maritime squalls, which quickly destroy inferior alloy extrusions and corrode standard zinc hardware.
- Salt-Spray Defense: Fluorocarbon PVDF coating (>25 microns)
- Hardware: Marine-grade SUS316 running rails & bogie wheels
- Wind Deflection: Structural mullions calculated to BNBC 2020
LEED-CERTIFIED DEVELOPMENTS
Green Commercial Landmarks & EPZ Hubs
With Bangladesh becoming a global leader in LEED-certified green factory and office construction, energy performance metrics are now mandatory for commercial facade compliance.
- Thermal Transmittance: U-values low as 1.6 W/m²K
- Solar Heat Gain: Low Solar Heat Gain Coefficients (SHGC < 0.28)
- Thermal Breaks: 24mm to 34mm wide techno-polymer barriers
Architectural Spec Comparison
Performance Matrix: Lift & Slide vs. Conventional Sliding
A technical guide for Bangladeshi architects, MEP consultants, and structural engineers specifying large-format patio fenestration for high-rise and beachfront facades.
| Performance Metrics | Architectural Lift & Slide Door | Conventional Inline Sliding Door | BNBC 2020 / ASTM Compliance |
|---|---|---|---|
| Water Penetration Resistance | Up to 700 Pa (Hermetic compression) | 150 - 250 Pa (Prone to track overflow) | Exceeds severe coastal monsoon codes |
| Wind Pressure Rating | 4500 Pa (N6 Level) | 1200 - 1800 Pa | Certified for 50+ story high-rises |
| Maximum Sash Weight | Up to 400 kg / Panel | 80 - 120 kg / Panel | Enables panoramic floor-to-ceiling glass |
| Acoustic Isolation (STC) | 38 - 42 dB | 22 - 28 dB (Brush seal air gaps) | Cuts Dhaka heavy traffic decibels |
| Operating Longevity | 100,000+ Cycles (Zero seal drag) | 15,000 Cycles (Brush pile attrition) | ISO 9001 factory verified durability |
Industry Evolution
Fenestration Architectural Trends Across Bangladesh
The construction landscape across Dhaka, Chattogram, and Sylhet is witnessing an unprecedented transition from rudimentary local fabrication to factory-engineered architectural systems.
Shift from In-Situ Fabrication
Developers are stepping away from raw uncertified local aluminum profiles cut manually on-site. Precision CNC machining ensures airtight miter joints and zero dimensional variance.
Thermal Energy Optimization
With electricity tariffs escalating in Bangladesh, high-end developers incorporate double-glazed Low-E gas-filled systems to meet national BNBC green building energy criteria.
Massive Structural Openings
Modern luxury villas in Bashundhara and Banani require 3-meter to 3.5-meter high glass spans. Only heavy-duty Lift & Slide systems deliver effortless glide at these dimensions.
Direct-from-Manufacturer Sourcing
Tier-1 Bangladeshi contractors now bypass local middlemen, procuring customized containerized consignments directly from large Foshan manufacturing hubs for cost savings and QA control.
Enterprise Authority
Guangdong Dejiyoupin Doors and Windows Co., Ltd. (DERCHI)
A Top 10 Door & Window brand with 25+ years of engineering mastery, supporting prestigious residential and commercial facade projects across the globe.
180,000 m² Facility
Automated CNC lines, robotic corner crimping, and automated profile powder coating deliver strict dimensional precision across all door schedules.
Free CAD Shop Drawings
In-house facade architects prepare comprehensive CAD shop drawings, structural wind load calculations, and anchor detailing prior to raw material extrusion.
100+ Patents & Certs
Backed by AS 2047, CE, ISO 9001, and UL fire-rated certifications, proven in high-profile luxury developments across the USA, Canada, Philippines, and the Middle East.
Full Supply Chain Integration
One-stop production encompassing Lift & Slide systems, modern cast aluminum pivot doors, bulletproof entrance systems, and interior architectural glass partitions.
International Testing & Ocean-Ready Packaging
Every consignee order undergoes strict multi-stage quality control. Profiles receive protective wrapping, while glass panels and structural frames are enclosed in custom reinforced non-fumigation plywood crates designed for ocean transshipment to Chittagong Port (CTG) or Mongla Port.
ISO 9001 Certified
AS 2047 Tested
CE Conformance
UL 10C Fire Rated
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Procurement Intelligence
Frequently Asked Questions for Bangladesh Sourcing
Clear, direct answers regarding custom clearance, Letters of Credit (LC), monsoon engineering, and site installation assistance.
Can you manufacture doors to custom structural rough openings?
Yes. Every door is engineered 100% custom to your site dimensions. You can provide rough opening measurements or architectural structural schedules in millimeters or inches. Our in-house facade engineers prepare full CAD shop drawings for architect sign-off before manufacturing starts.
How do Lift & Slide doors withstand Bangladesh monsoon storms?
Our systems incorporate stepped frame thresholds with integrated hidden weep holes and gravity check valves. When locked, the sash deadweight seals tightly against continuous vulcanized EPDM gaskets, resisting water head pressures up to 700 Pa without internal siphoning or track pooling.
Do you support Letter of Credit (L/C) payments for Bangladesh importers?
Yes. We have extensive experience handling export documentation under Irrevocable Letters of Credit (L/C at sight) compliant with Bangladesh Bank foreign exchange guidelines. We issue clean Bills of Lading, Commercial Invoices, Packing Lists, and Certificates of Origin.
What is the typical shipping transit time to Chittagong Port?
Standard sea freight from our nearest ocean terminals (Nansha / Shekou / Chiwan) to Chittagong Port (CTG) generally takes 12 to 18 sailing days. We assist your nominated customs clearing agent or forwarder with all HS code classifications for rapid customs release.
How do local contractors in Dhaka or Sylhet handle installation?
We supply labeled profile components, pre-assembled frame segments, pre-machined hardware lock prep, and 3D exploded assembly diagrams. Our engineering team provides direct video support to guide your local fenestration contractors through anchor setting, squaring, and sash calibration.
Can I verify production standards before committing to a project order?
Absolutely. You can inspect our full 180,000 square meter factory base via our live 360-degree online VR tour. You are also welcome to schedule an in-person audit at our Foshan facility, or commission independent 3rd party testing agents (such as SGS or BV) to conduct pre-shipment inspections.
Start Your Fenestration Engineering Consultation
Forward your architectural floor plans, door elevation schedules, or tender specifications. Our experienced sales engineers will provide comprehensive system recommendations, wind load calculations, and factory-direct pricing for your Bangladesh project.