Keller minimal windows® Systems

 Keller minimal windows® are among the world's most refined glass systems, engineered to maximize transparency while minimizing visible structure. Designed for ambitious residential and architectural projects, they create seamless connections between interior and exterior spaces. 

• Luxury residences 
• Coastal properties 
• Indoor-outdoor living spaces 
• Large-format sliding openings 
• Corner-opening systems
• Pivot doors 
• Architecturally significant projects

 We collaborate with architects, builders, and homeowners throughout the design and construction process—providing system selection, technical coordination, detailing support, and execution to ensure every opening performs as beautifully as it looks. 

• Ultra-slim sightlines 
• Industry-leading panel sizes 
• Precision Swiss engineering 
• Seamless indoor-outdoor transitions 
• Exceptional structural performance 
• Clean architectural integration

• Minimal visible frame profiles 
• Large-format sliding panels 
• Pocketing and corner-opening configurations 
• Motorized operation available 
• High-performance thermal options 
• Custom finishes and configurations

• Keller minimal windows® — up to 15' tall, 1,100 lb sliding panels, glass infill 12–34 mm (1/2"–1 5/16") 
• Keller minimal windows® 4+ — up to 20' tall, 2,200 lb sliding panels, glass infill 36–56 mm (1 3/8"–2 1/4") 
• Keller minimal windows® NGS® — up to 20' tall, 3,400 lb sliding panels, glass infill 34–75 mm (1 5/16"–3")

 We support select residential and architectural projects throughout California and the Western United States, helping clients integrate Keller Minimal Windows® from concept through completion.