The answer to 'lifespan of downspouts' is that a well-maintained downspout system can last between 20-30 years on average. Downspouts are an essential part of a home's roofing and drainage system, directing water away from the foundation. Their lifespan depends on factors like material, climate, and maintenance.
Downspouts made of aluminum or galvanized steel typically last the longest, up to 30 years with proper care. Vinyl and plastic downspouts may only last 15-20 years before needing replacement. Regular cleaning and inspections can extend the life of any downspout material by preventing clogs and damage.