In the Dickens novel 'David Copperfield', the hero says: 'Whatever I have devoted myself to, I have devoted myself to completely.' Here at Ostaco, you'll see that kind of devotion every day. Our core belief that windows and doors must be 'done well', sends us striving for efficiency. For durability. For added-value features. For beauty. We work tirelessly to improve and refine our windows and doors. Even after three decades in the business, we are still pouring time and money into research and development. This means plenty of dialogue with the people whose experience really counts: our dealers. When these important team-members asked us to find ways to make a high-performing modern window look and feel more like a traditional wood window, we acted on their insight by maximizing glazed area, removing weld seams...and many other mechanical fine-tunings! more... See more text