Aluminum siding is generally low-maintenance, but there are a few issues that may require attention. These include checking for dents or damage caused by impacts, ensuring proper drainage to prevent water damage, and cleaning to remove dirt and grime that can dull the finish. Additionally, it's important to inspect for signs of corrosion, especially in coastal areas with high salt content, and to address any loose or peeling paint to prevent further damage. Regular inspection and minor repairs can help maintain the longevity and appearance of aluminum siding.