What are some companies marketing downspout extensions?

Some brands that market downspout extensions are InvisaFlow and AmeriMax. These two brands provide users with a variety of extensions and other downspout products, such as brackets, for residential and commercial use.

A downspout connects to the top of the home's gutter system, directing the flow of water to the ground level of the home, where it is deposited. Downspouts may be made from a number of material choices, and aluminum is the most common primary material. Homeowners should maintain downspouts regularly to help them work efficiently, as they may develop cracks, clogs and other problems that may reduce their ability to function when needed.