The External Collection helps installers secure work on conservation areas and steel-replacement projects by offering a genuine heritage solution with all the benefits of modern performance.

‍With slim sightlines and authentic detailing, it's ideal for replicating the look of traditional steel  — making it suitable for listed buildings and sensitive renovation projects. At the same time, it meets today’s performance standards, including U-values from 1.2 W/m²K and PAS24 security compliance.

This makes Decorio a go-to option for installers looking to secure high-value, specification-driven work where both aesthetics and regulations matter.