Kömmerling is part of Profine GmbH – International Profile Group, a world-leading manufacturer of uPVC profiles for windows and doors. With a rich heritage dating back to 1897 in Pirmasens, Germany, Profine supplies high-quality profiles and systems to more than 100 countries worldwide. Its global manufacturing capacity exceeds 450,000 tonnes of premium uPVC profiles annually, backed by technical leadership and continuous investment in innovation.
Our manufacturing network includes 43 highly specialised extrusion and production sites across Europe, Asia, the Americas and beyond, enabling localised solutions to meet specific market demands while maintaining consistent global quality standards.
At the core of our network is the Pirmasens site in Germany – the historic birthplace of the Kömmerling brand and one of Profine’s flagship manufacturing hubs. The Pirmasens facility operates advanced extrusion lines, comprehensive testing laboratories, and engineering centres that continually develop and refine profile formulations tailored for diverse climates and performance requirements.
At Kömmerling, sustainability is not an add-on — it is built into how we manufacture. As part of the Profine Group, our production is supported by Profine Energy, a dedicated renewable energy business created to drive the transition to clean, future-focused power across our global operations.
Profine Energy invests in and develops large-scale solar farms, rooftop photovoltaic systems, battery storage solutions, and renewable energy infrastructure across multiple regions worldwide. These projects help supply manufacturing sites with clean energy, reduce reliance on fossil fuels, and stabilise long-term energy consumption.
Our extrusion plants are increasingly powered by renewable electricity generated from solar and wind energy, supporting energy-efficient production while significantly reducing carbon emissions. This approach allows us to operate advanced manufacturing facilities with a lower environmental footprint – without compromising performance, precision, or quality.
Making a Kömmerling uPVC profile may seem simple, but it’s a carefully controlled process that combines precision, technology, and sustainability. Here’s how it happens:
1. Raw Materials and Preparation – Everything starts with high-quality raw materials. The PVC, stabilisers, and additives are carefully selected for durability, weather resistance, and colour stability. In our climate-controlled mixing rooms, these materials are blended to exact specifications to create the perfect compound for extrusion.
2. Extrusion Process – The blended uPVC is heated and fed into state-of-the-art extrusion machines. These machines shape the soft material into precise profiles used for windows and doors. The extrusion process is carefully monitored to ensure each profile is dimensionally accurate, strong, and smooth.
3. Cooling and Stabilising – After extrusion, profiles pass through a cooling system that sets the shape and prevents warping. At this stage, profiles are checked for straightness, surface quality, and structural integrity.
4. Quality Control – Profiles undergo multiple quality checks, including measurements for size, strength, and finish. Any defects are detected and corrected immediately. This ensures that only profiles meeting our strict global standards move forward.
