"Even in times of rationalization and globalization, windows are not mass-produced products.
Quality and your satisfaction are our top priority." Ivo Keller

Window Keller AG is a modern family business. Window construction is our profession. Since 1947, we have been manufacturing high-quality windows, sliding doors and front doors made of wood and wood-metal - now in the fourth generation. Our success is based on the combination of first-class materials, solid craftsmanship and state-of-the-art technology. Entrepreneurial courage, outstanding employees, many years of experience and the unconditional will to always be one step ahead, not only on a technical level, have allowed us to grow successfully.

Our products:

• Wood windows
• Wood-metal windows
• Conservation windows
• Miniergie windows
• Fire protection windows
• Window options
• Sliding doors
• Entrance doors
• Mullion transom
• Accessories

Services:

• Consulting
• Production
• Installation
• Service