20-Year Experiences
Built for Global Markets
High-Customization & OEM/ODM
Flexible Order Policies
Chang Sheng Construction Technology Co., Ltd.
Chang Sheng Construction Technology Co., Ltd.
Chang Sheng Construction Technology Co., Ltd.
ABOUT US
Manufacturer of Aluminum Doors & Windows
Professional manufacturer of aluminum doors and windows, serving international builders, designers, wholesalers and house owners for 20 years.
20 years experience of manufacturing
500 braned stores at home and abroad
60 patents and inventions.
Hot Sale Products
Casement Windows, Sliding Windows, Turn Tilt Windows, Sliding Doors, Swing Doors, Hanging Doors and more.
Customization & Order Workflow
Client Provides Drawings / Requirements
We provide Quotation & Solution Proposal
Client Confirms the Order
Production
Quality Control & Factory Inspection
Packaging & Shipment
Installation Support
After-Sales Service
PRODUCT CUSTOMIZATION
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Factory Plant
Our 50,000㎡ factory is equipped with advanced production lines dedicated to aluminium doors and windows, integrating precision machining, strict quality control, and efficient workflow management.
OEM/ODM welcome!
KOMPSTAR
KOMPSTAR is a brand from Changsheng Construction Technology Co., Ltd. for international markets


Kompstar
Product Advantages
Our doors and windows meet international standards such as CE, Energy Star, AS/NZS 4665, AAMA etc.
Thermal Insulation Performance
Water Tightness Performance
Wind Pressure Resistance
Sound Insulation Performance
Anti-Theft Performance
Air Tightness Performance
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FAQs
Our FAQ section for doors and windows provides quick answers to common queries, covering materials, installation, maintenance, and more.
What product lines does KOMPSTAR offer?
We manufacture complete aluminium doors and windows, including sliding doors/windows, casement doors/windows, lift-and-slide systems, folding doors, heavy-duty commercial units, and outdoor sunroom and hotel tents.
Are your products customizable?
Yes. We offer full OEM/ODM services including frame thickness, opening style, hardware selection, surface finishing, dimensions, thermal performance levels, and glass configurations.
What surface finishes are available?
Options include powder coating, anodizing, electrophoresis, wood grain transfer, matte finishes, and customized RAL colors.
Do your products meet international compliance standards?
Yes. KOMPSTAR systems comply with CE, AS2047, ASTM, and other international standards depending on project requirements.
What aluminium alloy grade do you use?
Our standard grade is **6063-T5/T6** for optimal strength, corrosion resistance, and extrusion stability. Custom grades are available for structural applications.



