The main disadvantages of gutter guards include the initial cost of installation and the fact that some types may still require occasional maintenance. Foam or sponge guards can degrade over time, and improperly installed guards may lead to water overflow or ice dams in colder climates.

Gutter guards reduce maintenance but don’t completely eliminate it. Some types, like foam, may need to be replaced more often, and installation errors can lead to water damage or other issues. Heated guards may be necessary in colder climates.