Hardware manufacturer Sobinco is increasingly promoting its portfolio under the label "sustainable solutions". The company is signaling a strategic reorientation. For window and door manufacturers, what matters is: Does Sobinco deliver concrete measures such as recycling quotas, CO₂ balances, or material specifications – or does it remain with abstract announcements? Pressure from customers and regulation is increasing in the supplier industry. Anyone who merely engages in greenwashing now risks losing credibility.