Customers in Harpenden can take advantage of top-tier automation technology from trusted brands such as Somfy and NRG, along with an extensive selection of colours and woodgrain finishes to suit any aesthetic. Unlike many alternatives, our doors come with a full shutterbox as standard, not as a costly add-on. Additional features include a safety edge sensor that reverses the door if an obstruction is detected, a manual override for power outages, and the enhanced protection of the ‘Selve’ high-security locking system.

Each door is crafted using 77mm insulated laths, complemented by durable aluminium guide rails, end plates, and a robust shutterbox, ensuring long-term performance and energy efficiency.

All Trojon products are built to meet the latest European health and safety standards and are engineered for reliability. For added peace of mind, they include safety brakes—similar to a seatbelt mechanism—which instantly engage to prevent the curtain from dropping rapidly in the unlikely event of motor failure.