Thermal Break vs. Standard Aluminum: What Really Changes
How polyamide thermal barriers and Low-E IGUs affect U-values, condensation and running costs.
ISO 9001 Factory CE · AS2047 · NFRC
China Custom Aluminum Windows & Doors Manufacturer
Thermal-break systems engineered in Foshan for villas, residential developments and commercial buildings worldwide.
- 25+ Years of Export Experience
- Made-to-Measure Every Order
- Factory-Direct Supply
- Global Project Delivery
25+Years Building
Windows & Doors
Windows & Doors
Who We Are
A Foshan Window & Door Factory Built Around Export Projects
Since 2000, Foshan Derka Architectural Doors & Windows Co., Ltd. has designed and manufactured custom aluminum windows and doors for importers, builders, architects and developers across five continents. Everything is produced in-house at our 115,000 m² facility by a team of 700+ skilled professionals.
We work from your architectural drawings, recommend the right profile system for your climate and building code, and deliver a complete package — casement, sliding, folding, awning and tilt-and-turn windows, plus entry, patio, interior and garage doors — from a single, accountable supplier.
- In-house engineering & shop drawings
- 9 production lines, 16 h daily output
- Climate-specific system design
- Test reports shared before ordering
ISO 9001 CE AS2047 CSA NFRC Energy Star
Tour Our Factory on Video Window Collection
Energy-Efficient Aluminum Windows That Cut Cooling & Heating Costs
Thermal-break profiles, insulated Low-E glazing and multi-point sealing keep interiors quieter and more comfortable while reducing HVAC load — configured for the climate and code of your market.
VentilationAluminum Awning Windows
Top-hinged sashes open outward, allowing fresh air even during light rain — ideal for kitchens, bathrooms and high-level openings.
- Top-hung
- Friction stays
- Rain-shedding
Best SellerAluminum Casement Windows
Side-hinged sashes compress tightly against the frame for excellent air and water tightness, with multi-point locking for security.
- Thermal break
- Multi-point lock
- Inswing / outswing
Indoor-OutdoorAluminum Folding Windows
Panels stack neatly to one side, creating a wide, unobstructed opening for kitchen servery counters, bars and terraces.
- Bi-fold stacking
- Wide openings
- Slim sightlines
DaylightingSkylight Windows
Roof glazing with tempered or laminated safety glass brings natural light deep into living spaces, atriums and stairwells.
- Safety glass
- Fixed / operable
- Drainage design
Space-SavingAluminum Sliding Windows
Smooth-rolling sashes that never swing into walkways or balconies, with large glass panes for bright, open views.
- 2 / 3 / 4 tracks
- Stainless rollers
- Insect screen
European StyleTilt and Turn Windows
One handle, two modes: tilt inward for secure ventilation or turn fully open for cleaning and egress — popular for high-rise and passive-house projects.
- Dual function
- Concealed hinges
- High airtightness
Door Collection
Custom Exterior & Interior Doors That Elevate Every Facade
Aluminum, copper, steel, solid wood and laminate — one factory supplies coordinated door packages for entries, patios, interiors and garages.
ExteriorAluminum Casement Doors
Hinged swing doors with thermal-break frames and heavy-duty hinges for balconies, gardens and main living areas.
Casement Door Details
PatioAluminum Folding Doors
Bi-fold panels open an entire wall to the terrace or pool deck, blending indoor and outdoor living seamlessly.
Folding Door Details
PanoramicAluminum Sliding Doors
Oversized glass panels on precision tracks, including lift-and-slide options for heavy, floor-to-ceiling spans.
Sliding Door DetailsLuxury EntryCopper Entry Doors
Hand-finished copper front doors with carved detailing that make a lasting statement on villas and estates.
Copper Door Details
ClassicFrench Style Doors
Elegant double doors with slim muntins that frame garden views and flood rooms with natural light.
French Door Details
InteriorWooden Interior Doors
Warm, quiet interior doors in solid and engineered wood, prehung options available for faster installation.
Wooden Door Details
SecuritySteel Front Doors
Reinforced steel entry doors with insulated cores and multi-point locks for security, durability and weather resistance.
Steel Door Details
GarageGarage Doors
Insulated sectional and aluminum-glass garage doors that match your facade and window color scheme.
Garage Door Details
ProjectsLaminate Doors
Cost-effective, scratch-resistant laminate doors for apartments, hotels and offices ordered in volume.
Laminate Door Details Manufacturing Strength
Production Capacity That Keeps Your Project on Schedule
Our semi-automated plant runs nine dedicated lines for profiles, glazing and hardware assembly. Large capacity means your order is not waiting behind someone else's — and consistent processes mean the 500th unit matches the first.
9Production Lines
115k m²Factory Area
16hDaily Operation
700+Skilled Workers & Engineers
Profile Inspection
Alloy, wall thickness and coating checked on arrival.
CNC Cutting
Precision cutting and machining to shop drawings.
Frame Assembly
Corner crimping, thermal-break and seal installation.
Glazing & Hardware
IGU installation and hardware fitting to spec.
44-Point QC
Dimension, operation, sealing and finish tests.
Export Crating
Labeled by project and opening for easy install.
Global Market
Global Engineering, Local Precision
We develop window and door systems around local building codes, wind loads and climate — so what arrives on site is ready to pass inspection in your market.
North America
USA & Canada
NFRC, Energy Star and CSA-oriented systems, impact options for hurricane zones.
USA Solutions
Oceania
Australia & New Zealand
AS2047-compliant windows and doors for bushfire and coastal conditions.
Middle East
UAE, Qatar & Saudi
Heat-reflective glazing and dust-sealed systems, with local service in Dubai.
Asia Pacific
Southeast Asia
Typhoon-rated, humidity-resistant solutions for tropical residences and resorts.
Africa & Europe
Africa & Europe
CE-marked products and robust security doors for residential and commercial builds.
Quality & Certificates
Certified Quality, Verified Before Every Shipment
Quality is built into our process, not inspected in at the end. Every order passes 44 documented checkpoints, and our product lines are tested against the standards importers are asked for at customs and on site.
From standard residential windows to impact-resistant hurricane systems, we share certificates and third-party test reports before you commit — so you can specify with confidence.
ISO 9001Quality Management
CEEuropean Conformity
AS2047Australian Standard
CSACanadian Standard
NFRCEnergy Performance
Energy StarEfficiency Rating
- Appearance Inspection
- Dimension Precision
- Assembly Accuracy
- Coating & Sealing
- Hardware Operation Testing
- Structural Integrity
Why Choose Us
Why Importers, Builders & Architects Choose DERKA
The practical advantages that reduce risk, rework and delays on your project.
Fully Custom Engineering
Every opening is made to measure from approved shop drawings — sizes, colors, glass, hardware and opening directions to your specification.
Energy Efficiency
Thermal-break profiles, Low-E insulated glass and continuous gaskets help projects meet modern energy codes and lower utility bills.
Extreme Weather Resistance
Reinforced frames and laminated glass options engineered for high wind loads, hurricanes, typhoons and coastal corrosion.
Security & Durability
Multi-point locking, anti-lift design and durable powder-coated or anodized finishes built for decades of daily use.
On-Time Global Delivery
Nine production lines and export-grade crating keep lead times predictable and products protected from factory to site.
Design & After-Sales Support
Free design consultation, installation guidance and responsive after-sales service from engineers who know your order.
Project Showcase
Residential & Commercial Projects Delivered Worldwide
From private villas to multi-unit developments and glass curtain wall buildings across North America, Australia, Africa, the Middle East and Southeast Asia.
Residential Residential Solutions
Villa & Residential Developments
Complete window and door packages for villas and housing projects, coordinated in style, color and performance.
VillasDubai · Qatar
Full PackageWindows + Doors
CustomEvery Opening
Commercial
Commercial Buildings & Curtain Walls
Large-span glazing, storefronts and architectural glass curtain walls engineered for structural and thermal performance.
OfficesAustralia
Curtain WallLarge Span
Code-ReadyLocal Standards
FAQ
Questions Buyers Ask Before Importing
Straight answers from our engineering and export team. Need more detail? Email [email protected] — we reply within 24 hours, 7 days a week.
We manufacture aluminum casement, awning, sliding, folding, tilt and turn and skylight windows, plus aluminum casement, sliding and folding doors, French doors, copper entry doors, steel front doors, wooden and laminate interior doors and sectional garage doors. One factory can supply a complete window and door package for a villa, apartment block or commercial building.
Yes. Our systems combine thermal break aluminum profiles, insulated glass units and Low-E coatings, and can be configured to target the requirements of NFRC and Energy Star in North America, AS2047 in Australia and CE marking in Europe. Product certificates and third-party test reports are available on request before you order.
Every order is made to measure. Our engineers review your architectural drawings, prepare shop drawings for approval and customize frame colors, glass type, hardware, grilles and opening directions. Bay, bow, arched, oversized panoramic and curtain wall configurations are all available.
Each order passes 44 inspection points covering raw profiles, cutting and dimension precision, corner assembly, coating and sealing, hardware operation and structural integrity. Finished units are checked again at packing, and inspection photos can be shared before loading.
Frames are protected with surface film, corner guards and foam, then secured in export-grade crates labeled by project, floor and opening number so installers can match each unit to the drawings on site.
Yes. Buyers are welcome to visit our production base in Foshan, Guangdong, to see extrusion inspection, assembly and testing in person. If travel is not possible, our team can arrange a live video audit of the production lines and your order.
Insights 
Buying Guides & Industry Trends
Practical knowledge from 25 years of supplying windows and doors to international projects.
How to Read NFRC, AS2047 & CE Ratings Before You Import
Which numbers matter for your market and which documents to request from any supplier.
Slim Frames, Panoramic Glass & Smart Hardware
The design shifts shaping premium residential windows and doors this year.
From Factory to Site: Planning Window Delivery for Villa Projects
Sequencing, crate labeling and site storage tips that prevent damage and install delays.
Planning a Window & Door Package for Your Next Project?
Send us your drawings or opening schedule. Our engineers will recommend the right systems, glazing and hardware for your climate and code.