Metal doors are both exceptionally strong and highly durable, making them ideal for commercial properties, but they are also prone to rust. Exposure to oxygen, carbon dioxide and moisture causes rust to develop on many metal doors. Instead of going to the expense of replacing metal doors in commercial buildings, these doors can often be restored and repainted by the professional commercial painters at the independently owned and operated Sunfix Paints near you to regain an attractive look and to extend their life for many years.