Thermal Insulation
Frame depth
Glazing options
Sound insulation
The Kömmerling C70 Gold Window & Door System is a premium uPVC solution tailored for Australian homeowners, architects, and builders seeking high-quality, energy-efficient windows and doors. Engineered in Germany and crafted for superior thermal insulation, noise reduction, and enhanced security, the C70 Gold system is an ideal choice for both residential and commercial applications.
This system features a sleek, modern design with slim sightlines, allowing for maximum natural light while maintaining excellent thermal performance. With multiple configuration options, including casement, tilt & turn, and sliding doors, the C70 Gold system is versatile, durable, and built to withstand the Australian climate.

SLIMLINE SEALS
Low line gaskets and weather seals provide lasting performance and slimmer sightlines.
SECURE LOCKING SYSTEM
The full depth, central eurogroove locking system helps make the windows more secure.
HIGH ENERGY EFFICIENCY
The Five chambered profile system helps to provide one of the highest performing energy efficient window systems currently available in Australia.
WELDED FRAME INTEGRITY
All joints are welded to ensure no warping or twisting of the frame and absolute product integrity once installed.
REINFORCED STRENGTH
Steel reinforcement is used throughout our profiles to add additional structural strength.
MODERN CHAMFERED DESIGN
The chamfered design of C70 Gold® gives a modern and clean look through the frame, sash and glazing bead.
Enhance your home with the perfect colour and texture to match your design vision with the Kömmerling C70 Gold Window & Door System, which offers a wide range of contemporary and classic colour finishes for seamless integration with any architectural style. Our high-quality foils and coatings provide long-lasting durability, UV resistance, and minimal maintenance while maintaining their vibrant appearance over time. Choose from modern neutrals, warm woodgrain textures, and sleek contemporary hues to create the perfect aesthetic for your space, whether you prefer the elegance of classic white, the natural warmth of timber finishes, or the bold statement of anthracite grey, the C70 Gold Colour Range allows you to customise your windows and doors to suit your taste and surroundings.
OUR uPVC
Discover our premium uPVC raw materials, advanced stabilisers for durability and UV resistance, and designed for recyclability and circular economy principles.
READ MORE
OUR SUSTAINABLE PRACTICES
Explore Kömmerling’s approach to sustainability across the entire lifecycle, covering materials, manufacturing, logistics, and end-of-life recycling within a circular economy model.
READ MORE
OUR TECHNOLOGY
See how our digital platforms and eBusiness solutions support architects, homeowners, and fabricators with faster project flow and collaboration.
READ MORE
OUR MANUFACTURING
Explore our advanced manufacturing practices, shaped by over 129 years of German engineering, precision, and innovation.
READ MORE
With the C70 Gold system, you can create windows and doors in multiple opening styles, all engineered for smooth operation, lasting performance, and seamless integration into your home.