Yeltana is proud to partner with Guillaume Janssen, a European leader in bespoke external sun protection systems. Known for custom, angular blinds solutions and technical precision, Guillaume Janssen products perfectly align with Yeltana’s commitment to architectural excellence and performance-driven solutions.

Founded in the Netherlands with over 60 years of experience, Guillaume Janssen specialises in façade-integrated shading solutions. Designed for the architectural sector, their products are engineered for durability, energy efficiency, and seamless visual integration into both modern and heritage buildings.

Their systems are often specified for projects requiring discreet yet powerful sun control — balancing occupant comfort with refined aesthetics and long-term performance.

Together, Guillaume Janssen and Yeltana empower architects and developers to create buildings that are as sustainable and functional as they are visually striking — with premium shading solutions that become part of the architecture itself.