01 / BUILDERS
For Builders
Coordinate exterior doors and windows for new homes, villas, apartments and commercial developments.
Explore builder solutions
Belgium project supply
Custom Exterior Doors and Windows for Belgium Projects
Source custom aluminium exterior doors and windows directly from DERCHI factory in China. Built for builders, renovation contractors and dealers who need clear specifications, project support and export coordination.
- Factory-direct communication
- Made-to-order configurations
- Export support for Belgium
For professional buyers
Exterior Door and Window Solutions for Your Business
Choose the route that matches your project or business. Each path connects you with relevant product, specification and cooperation information.
02 / CONTRACTORS
For Renovation Contractors
Discuss replacement and renovation requirements, including dimensions, opening styles, glass and hardware.
Explore contractor solutions
03 / DEALERS
For Dealers
Build an aluminium exterior door and window range with product information, samples and cooperation support.
Explore partner options
Project clarity
Make Exterior Door and Window Sourcing Easier to Manage
International sourcing becomes difficult when product details, quotations and delivery requirements are not clearly managed.
Share your drawings, dimensions or product list before ordering. Our team can review the project scope and help you identify the information needed for a more accurate quotation.
Discuss Your Requirements01
Unclear dimensions or product configurations
02
Separate suppliers for doors, windows and accessories
03
Limited technical information before ordering
04
Uncertainty about export packing and delivery scope
05
Slow communication during production and follow-up
Product overview
Custom Aluminium Exterior Doors and Windows for Professional Projects
DERCHI supplies aluminium exterior doors and windows directly from its China factory for professional customers who need project-based product solutions.
- New residential construction
- Renovation and window replacement
- Villas and large-opening projects
- Apartment and multi-unit developments
- Commercial and hospitality buildings
- Dealer and showroom supply
Product range
Exterior Doors and Windows for Different Project Requirements
Sliding Exterior Doors
Suitable for villas, extensions and projects that require wide glazed openings.
View sliding doors
Bifold Exterior Doors
Designed for flexible panel opening in residential and hospitality applications.
View bifold doors
Tilt and Turn Windows
Suitable for residential and renovation projects that need flexible opening positions.
View tilt and turn windows
Casement and Fixed Windows
Made-to-order window solutions for ventilation, natural light and project-specific layouts.
View exterior windowsChoose by application
Find the Right Exterior Doors and Windows for Your Project
| Product | Suitable for | Project focus | Product page |
|---|---|---|---|
| Sliding exterior doors | Villas, extensions and renovations | Wide glazed openings | 143 Series sliding door |
| Bifold exterior doors | Premium homes and hospitality projects | Flexible panel opening | 93 Series bifold door |
| Tilt and turn windows | Renovation and residential projects | Multiple opening positions | E5N window |
| Sliding windows | Residential and commercial applications | Horizontal opening movement | E5T sliding window |
| Casement windows | New build and replacement projects | Ventilation and custom sizing | S9 casement window |
Why work with DERCHI
A Factory Partner for Exterior Doors and Windows
Factory-direct coordination for professional projects Project-based customisation
Review drawings, window schedules and product lists before preparing a quotation based on the confirmed scope.
Direct factory communication
Discuss product requirements, configuration changes and repeat orders with the manufacturer.
Multiple product options
Coordinate sliding doors, bifold doors, entry doors, casement windows and other exterior products.
Technical information
Access product details, technical parameters and applicable certification information for selected systems.
Export preparation
Discuss protective packing and shipment preparation according to the order and agreed delivery scope.
Dealer cooperation
Discuss catalogues, samples, quotation support, product training and showroom cooperation.
Configuration
Configure Each Detail Around the Project
Every project has different dimensions, opening conditions and design requirements. Product details should be confirmed before production.
Send Project Details - Custom dimensionsWidth and height based on the approved project requirements.
- Opening stylesSliding, folding, swing, casement, tilt and turn configurations.
- Glass optionsDouble glazing, tempered glass and selected performance options.
- HardwareHandles, locks and hardware options for the selected product system.
- Colours and finishesPowder coating, anodising, wood grain imitation and PVDF options where available.
- Export packingProtection and packing requirements reviewed for international shipment.
Applications
Exterior Doors and Windows for Different Project Types
New residential construction
Coordinated exterior doors and windows for new homes, villas and residential developments.
Renovation and replacement
Made-to-order products for contractors replacing existing windows or creating new openings.
Large-opening projects
Sliding and bifold door options for villas, extensions and indoor-outdoor layouts.
Commercial buildings
Exterior door and window solutions for selected offices, retail and hospitality projects.
Dealer supply
Product range, samples and technical information for dealers and resellers.
Selected product data
Technical Information for Professional Review
The following data is for DERCHI's 143 Series Thermal Break Aluminum Sliding Door. Confirm the final specification for the selected system and project before ordering.
Certification marks and performance values apply to the relevant product system and test scope. They should not be treated as a blanket claim for every DERCHI product.
| Product | 143 Series Thermal Break Aluminum Sliding Door |
|---|---|
| Profile thickness | 2.2 mm |
| Glass | 5 mm + 27A + 5 mm double tempered glass |
| Opening method | Side opening; lift-and-slide option shown in product information |
| Surface treatment | Powder coating, anodising, wood grain imitation and PVDF coating |
| Thermal transmittance | 2.3 W/(m²·K) |
| Wind pressure resistance | Up to 4.5 kPa |
| Water resistance | 300 Pa |
| Air tightness | 4.5 m³/(m·h) |
| Sound insulation | Up to 30 dB |
| Size | Customised size |
Product resources
Review the Full Product Catalogue
The catalogue includes aluminium thermal break casement windows, sliding windows and doors, swing doors, folding doors, sunrooms, curtain wall systems and other product series.
Download Product Catalogue Online resources
Continue Your Product Review
Explore custom windows, custom aluminium doors and energy-efficiency information before sending your project details.
Why DERCHI
A Practical Factory Partner for Belgium Projects
Factory-direct supply
Discuss project requirements directly with a China-based manufacturer.
Custom production
Review sizes, openings, glass, hardware, colours and finishes for selected systems.
Project support
Receive product, specification and quotation support for professional requirements.
Export preparation
Discuss packing and shipment requirements for delivery from China to Belgium.
Applicable product information includes CE NFRC US/AU IGCC ISO 9001 CSA AS 2047-2014
Certification and test marks are shown for applicable DERCHI product systems. Confirm the relevant documents and scope for your selected configuration during quotation.
Factory and quality
From Aluminium Processing to Export Packing
Review the factory environment and production process before discussing a project order.
Factory overview
Review the Production Environment Before You Order
Use the factory information and product catalogue to understand DERCHI's aluminium door and window production scope before sending your Belgium project requirements.
- Aluminium exterior doors and windows for project supply
- Product configuration and technical information review
- Export preparation discussed during quotation
Belgium delivery planning
Plan the Product and Delivery Scope Before Ordering
A clear quotation should cover both the exterior doors and windows and the delivery requirements.
Request a Project Quote- Product type, dimensions and total quantity
- Glass, hardware, colours and special configurations
- Protective export packing and loading requirements
- Belgium delivery location and shipping method
- Agreed commercial terms and delivery scope
- Installation responsibility or local partner arrangements
Project workflow
From Inquiry to Delivery
Share drawings, dimensions, product types and quantities.
Review opening styles, glass, hardware, colours and finishes.
Confirm drawings, dimensions and the selected product system.
Receive pricing based on the confirmed project scope.
Approve final product, configuration and delivery details.
Manufacture and inspect products according to the approved order.
Prepare products for shipment from China to Belgium.
Project evidence
Exterior Door and Window Projects
Selected projects from the DERCHI case portfolio show how different aluminium exterior door and window combinations are used in residential applications.
Villa Project in Las Vegas
Aluminium entry doors, sliding doors and fixed glass windows used for a villa project.
View project cases New York Apartment Project
A residential apartment project featuring aluminium window and door solutions with an energy-efficiency focus.
Explore case studies
California Villa Project
Folding doors and casement windows selected for a contemporary villa application.
See the project portfolioQuestions before ordering
Exterior Doors and Windows FAQ
DERCHI supplies custom aluminium exterior doors and windows directly from its China factory. Shipping arrangements, delivery terms and project scope are confirmed during the quotation process.
Custom configurations can be discussed based on confirmed drawings, dimensions, opening types, glass, hardware, colours and project requirements.
The range includes aluminium sliding doors, bifold doors, entry doors, swing doors, casement windows, tilt and turn windows, sliding windows and fixed windows. Product availability should be confirmed for the selected project.
Yes. Builders, renovation contractors and dealers can send drawings, dimensions, product lists and delivery requirements for project-based quotation review.
Please provide product types, quantities, approximate dimensions, drawings or schedules, glass requirements, colour preferences, target delivery time and Belgium delivery location.
Product catalogues, technical parameters and applicable certification information can be reviewed for selected product systems. Request the catalogue or contact the team for project-specific information.
Protective packing and shipment preparation are discussed according to the confirmed products, quantity, delivery location and agreed delivery terms.
Installation availability depends on the project scope and local partner arrangements. Contact DERCHI to discuss installation guidance or available local cooperation.
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