Solarlux bi-folding doors are a world-class, German-engineered product designed to create seamless transitions between indoor and outdoor spaces. Renowned for ultra-slim profiles and effortless operation, these doors feature industry-leading thermal insulation, with the Highline series meeting Passive House standards. Available in bespoke aluminium, wood, or composite finishes, they provide maximum transparency and security while delivering the durability and refined aesthetics required for high-end architectural projects in 2026