We are part of Europe's leading supplier of window and door systems Today, PVC-u is the most successful window material and i ... ts market share is constantly growing. In residential construction, the replacement market share is currently over 80% and PVC-u is also the preferred material choose of most specificers. Kömmerling offers a large number of window and door systems each designed with impressive technical innovations and manufactured with our lead-free Greenline compound. Efficiency, design, function, physical properties, environmental protection and responsible handling of raw material resources meet the highest requirements. These elements provide benefits for the client, specifiers and fabricators through the availability of a high performance and proven system. With the Kömmerling brand, we face the challenges of the future with confidence, honesty and transparency. Enabling us to continue our position as Europe's number 1 profile systems company. read more