Ultra-Slim Aluminium Windows & Doors Manufacturer
since 1995
Slimline Windows & Doors
Engineered to meet Australian Standards and WERS energy rated, our slimline systems combine thermal performance, energy efficiency, and seamless design—
delivering comfort without compromise.
UltraSlim Custom Windows & Doors
Tailored Systems, Precisely Delivered
UltraSlim approaches each project as a unique build. Our core systems—slimline doors and windows—are fully customizable in dimensions, configurations, aluminum profiles, and special shapes, allowing precise alignment with architectural intent. Complementary elements such as skylights, blinds, and integrated features are designed to extend functionality while maintaining a cohesive system.
Glazing, finishes, hardware, and automation are carefully selected and integrated as a complete system—ensuring clarity in design, consistency in quality, and reliable performance from production to installation.
Design Consultation
Transparent Quotation
Precision Manufacturing
Protected Shipping
Installation Guidance
Lifetime SupportProjects Worldwide
Trusted by over 200 partners across diverse industries and regions, our systems are chosen for their precision, performance, and reliability. From private villas to cultural spaces, UltraSlim solutions are designed to integrate seamlessly into distinctive architecture.
Clark Art Institute, Massachusetts, USA
Architect: Tadao Ando
A cultural space defined by precision, light, and material restraint.
Achieving the required level of detailing demanded systems that could support both structural performance and architectural purity—
Slimline Residential Project, Hangzhou, China
A contemporary residential project focused on clean lines, light, and spatial openness.
Ultra-slim window and door systems were introduced to enhance visual continuity and maximize glazing within a refined architectural framework—conditions, the 125 and 180 Ultra-Slim Sliding Series enable expansive glazing while maintaining control over performance and detailing—
Chinese Embassy, Washington, D.C., USA
Architect: I.M. Pei
A high-security diplomatic project where precision, security, and architectural intent had to align seamlessly.
To meet these demands, a fully prefabricated façade system was developed and tested off-site—
Sheraton Vancouver Wall Centre, Vancouver, Canada
A landmark twin-tower development
A large-scale mixed-use project where consistency across high-rise structures was critical.
Delivering performance at this scale required systems engineered for both precision and repetition—
H18 Shanghai Heyi Project, Shanghai, China
A transformation into high-performance space
An existing structure reimagined into a modern office, showroom, and training environment.
Balancing daylight, insulation, and ventilation within the original constraints required a carefully engineered façade approach—
Tianjin Eco-City, Tianjin, China
A benchmark in sustainable urban development
Designed to meet strict environmental standards, the project required advanced façade systems capable of balancing daylight, insulation, and complex geometry—
Why Choose Us
Since 1995, UltraSlim has specialized in the design and manufacture of high-performance aluminium window and door systems. Our 20,000 m² modern facility and dedicated R&D team ensure consistent quality, precision, and scalability across every project.
From concept to final production, every system is developed in-house—allowing full control over materials, finishes, and performance. This is not mass production, but precision manufacturing, where refined detailing meets engineering accuracy.
Our Partners
To ensure consistent quality and performance, UltraSlim partners with globally recognized material suppliers, including TIGER, Honeywell, TECHNOFORM, Sobinco, AkzoNobel, Quanex, and Haida.
Certified Performance
UltraSlim systems are tested and certified to major international standards, including AS/NZS (Australia), ASTM/ANSI (United States), and EN (Europe).
This ensures consistent performance in safety, durability, and energy efficiency—giving you confidence that every system meets the requirements of your project.
Our Factory
Advanced manufacturing, premium materials, and precise engineering define every system we produce. With efficient processes and strict quality control, we ensure consistent performance, durability, and attention to detail at every stage.
Start Your Custom Project
Share your project details, and our team will provide a tailored solution and quotation.