100+ Independent Patents
Including our exclusive Four-Side Six-Point Lock invention patent for anti-theft security.
Foshan Factory · 25+ Years Exporting
Aluminum Windows & Doors Engineered for Asia
Typhoon-ready, climate-tested systems for projects from Singapore to Seoul.
Project Engineering
18,000+ Projects Delivered
From drawings to on-site installation guidance — one accountable team.
Climate Engineering
Built for Heat, Humidity & Typhoons
Thermal-break profiles with Low-E and laminated glass options.
360° Quality Control
Shop-Drawing Accuracy
Intelligent Manufacturing
Zero-Error Manufacturing for Large-Scale Asian Projects
Every frame is cut, machined and assembled on intelligent production lines and checked through our 360-degree quality control system before leaving Foshan — so consultants and contractors receive units that match the approved shop drawings, floor by floor.
Intelligent Production & 360° QC
Automated processing with full inspection checkpoints keeps tolerances consistent across thousands of units.
Xinhua "China Brand" Certified
Recognized by Xinhua News Agency, a world-class media outlet, as a certified China brand.
International Certification Coverage
CE, NFRC, AS2047, CSA, Energy Star, ISO 9001 and hurricane certification for high-wind regions.
About Us
A Top-Ranking Chinese Door & Window Exporter Serving Asia
Guangdong Dejiyoupin Doors and Windows Co., Ltd. (DERCHI) is headquartered in Nanhai District, Foshan — the centre of China's aluminum extrusion and architectural hardware cluster. For more than 25 years our team has designed, manufactured and exported high-end aluminum windows, aluminum doors, sunrooms and wooden doors as one-stop customized solutions.
We work directly with developers, architects, façade consultants, contractors and distributors. Being close to Pearl River Delta ports gives buyers in Southeast and East Asia short sea-freight routes and responsive coordination from sampling to after-sales.
180,000m²
Production Base
1,000,000m²+
Annual Production Volume
30+
R&D Experts
600+
Current Employees
Watch Factory Tour Why Choose Us
See How Your Windows Are Made Before You Order
DERCHI focuses on R&D and manufacturing of high-end doors and windows for the global market, combining product innovation with large-scale delivery capability.
Capacity Guarantee
1,000,000 m²+ yearly output supports phased delivery for towers, hotels and townships.
Innovation-Driven
30+ R&D experts develop profiles, locking and sealing for demanding climates.
Professional Customization
Sizes, colors, glass and hardware tailored to each project specification.
Global Recognition & Trust
300+ overseas franchisees and 18,000+ completed projects worldwide.
Product Series
Aluminum Windows, Doors & Sunrooms for Every Asian Climate
Residential and commercial systems for villas, high-rise condominiums, resorts and hotels — specified around wind load, rainfall, heat gain and security.
Windows Aluminum Windows
Casement, sliding and fixed picture windows with thermal-break profiles and high-performance glazing.
Doors Aluminum Doors
Entry, sliding, bifold and swing doors with multi-point locking and weather-sealed thresholds.
Entry Doors
Pivot and hinged aluminum front doors with multi-point locks for villas and residences.
Bifold Doors
Folding glass walls that open living spaces to tropical gardens, terraces and pool decks.
Sliding Doors
Slim-frame multi-track and lift-slide systems for high-rise balconies and resort suites.
Swing Doors
Hinged French and patio doors with raised drainage thresholds for heavy monsoon rain.
Casement Windows
Compression-sealed sashes with strong air and water tightness for typhoon-exposed façades.
Picture Windows
Large fixed glazing for panoramic city, sea and mountain views with minimal sightlines.
Sliding Windows
Space-saving sliders with high-drainage tracks suited to apartments in monsoon climates.
Sunrooms
Aluminum glass sunrooms and conservatories with solar-control roof glazing.
Wooden Doors
Custom interior wooden doors for apartments, hotels and serviced residences.
Asia Specification Guide
How to Specify Windows & Doors for Asia's Climate Zones
Asia spans typhoon belts, equatorial humidity, desert heat and cold winters. Based on our export project experience, these are the priorities we recommend reviewing with your architect or façade consultant.
Typhoon & Coastal Zones
Philippines · Japan · Southern China coast
- Reinforced profiles sized to local wind-load design
- Laminated or tempered-laminated safety glass
- Multi-point locking for sash and leaf stability
- Corrosion-resistant hardware for salt air
Tropical Heat & Humidity
Singapore · Malaysia · Thailand · Indonesia
- Low-E or solar-control insulated glass to cut cooling loads
- Thermal-break frames to limit condensation
- High-drainage sills for monsoon downpours
- Durable powder-coated or anodized finishes
Desert & Gulf Climates
Saudi Arabia · Israel · Gulf States
- Solar-control glazing against intense radiation
- Dust-resistant gaskets and brush seals
- UV-stable coatings that resist fading
- Heavy-duty rollers for oversized sliders
Four-Season & Cold Regions
South Korea · Northern Japan · Russia
- Multi-chamber thermal-break aluminum systems
- Double or triple glazing with warm-edge spacers
- Casement styles for superior air tightness
- Insulated thresholds for entry and patio doors
Final performance values depend on local building codes, opening size and the selected system. Our engineers prepare technical data and test documentation for each project submission so your consultant can verify compliance.
Engineering Cases
18,000+ Completed Projects, With Growing Delivery Across Asia
References include Hilton Hotels, Beverly Hills, Ruyi Lake, Emerald City and Atour Hotels. Our engineers support each project from drawings and R&D to on-site measurement, production confirmation and installation guidance.
Personalized Customization
Our 8-Step Engineering Process
A transparent, documented workflow that keeps overseas buyers informed at every milestone — from the first drawing to installation on site.
01
Drawing Review
Engineers study your architectural drawings, openings and performance targets.
02
Research & Development
Profiles, glass and hardware are matched to climate and local code needs.
03
Technical Proposal
A detailed proposal with system specifications and project costing.
04
Details Finalized
Shop drawings, colors, finishes and accessories are confirmed in writing.
05
Order Confirmation
A partial deposit secures production scheduling for your project.
06
On-Site Measurement
Actual openings are measured to eliminate fitting deviations.
07
Production Confirmation
Manufacturing on intelligent lines with 360° quality inspection.
08
Installation Guidance
On-site installation guidance helps your crew achieve tested performance.
Virtual ShowroomWhole-House Customization
One-Stop Customization for Homes, Hotels & Developments
Structure & Style Development
Special structural and style customization to create unique products for your brand or project.
Private Whole-Home Solutions
Coordinated windows, doors, sunrooms and wooden doors from a single supplier.
Personalized Finishes
Choose colors, logos, glass, hardware and surface finishes to match your design intent.
Why Join
Why Distributors & Contractors in Asia Partner With DERCHI
Let our data speak: a proven dealer network, measurable project revenue and the capacity to grow with your market.
300+
Overseas Franchisees
18,000+
Completed Projects
$435M
Project Revenue (2024)
25+ Yrs
Manufacturing Experience
HQ: Foshan, ChinaKey Asian & Asia-Pacific Markets
Japan 
South Korea 
Singapore 
Malaysia 
Thailand 
Indonesia 
Philippines 
Saudi Arabia 
Israel 
Russia 
Australia Brand Presence
Flagship Image Stores
Branded showrooms let homeowners and specifiers experience DERCHI windows and doors in person — a retail model our partners replicate in their own markets.
Customer Feedback
What Buyers Say After Delivery
Real messages and photos shared by customers and partners after receiving and installing their DERCHI windows and doors.
Certifications
Patents, Certifications & Honors
Over 100 national patents, including the exclusive Four-Side Six-Point Lock invention patent for anti-theft security, backed by internationally recognized product and quality certifications.
CEEuropean Union
NFRCUnited States
AS2047Australia
CSACanada
Energy StarEnergy Efficiency
ISO 9001Quality Management
HurricaneHigh-Wind Certification
6-Point LockInvention Patent
Buyer Questions
Frequently Asked Questions From Asian Buyers
Straight answers to the questions developers, contractors and distributors in Asia ask us most before placing an order.
We supply developers, contractors and distributors across East, Southeast and West Asia, including Japan, South Korea, Singapore, Malaysia, Thailand, Indonesia, the Philippines, Saudi Arabia and Israel, as well as Oceania, Europe and the Americas.
Yes. For typhoon and coastal zones we recommend reinforced profiles, laminated or tempered-laminated glass, multi-point locking and corrosion-resistant hardware. Our product range holds hurricane certification, and our engineers provide test data for each project submission. Final ratings depend on opening size, glass and configuration.
For Singapore, Malaysia, Thailand and Indonesia, insulated glass units with Low-E or solar-control coatings help reduce cooling loads, while thermal-break aluminum profiles limit condensation on frames in air-conditioned interiors.
Yes. Our 8-step engineering process starts with your drawings, followed by R&D, technical costing, detail confirmation, order deposit, on-site measurement, production confirmation and on-site installation guidance.
DERCHI already works with 300+ overseas franchisees. Distributors and installers can review the Be A Partner program and email [email protected] with their market and business profile.
Planning a Project in Asia?
Send your drawings and specifications to [email protected] — our engineers will review them and reply with technical recommendations.