Which door materials are best for security and energy efficiency?

• Composite doors combine timber, GRP, insulating foam, and steel cores—offering excellent durability, thermal insulation, and security, with lifespans of 30+ years.
• uPVC doors are low-maintenance, weather-resistant, and affordable, though slightly less sturdy and insulating than composite.
• Aluminium doors have slim profiles, modern aesthetics, excellent longevity (~45 years), and thermal benefits when thermally broken.
• Timber doors are traditional and elegant, but demand ongoing maintenance to prevent warping and rot.