Gutter guards and screens can be a great help in keeping gutters clean. They serve as a protective layer around the gutter that prevents leaves, debris, and other things from entering it. This helps to prevent clogging of gutters and thereby keeps them free-flowing. (Additionally, these devices also help reduce the amount of time needed for cleaning.)

Notwithstanding, they may not be sufficient all by themselves. For instance, if there are trees near your house then you will still need to clean out the gutters once or twice every year! As such, gutter guards and screens should be seen as an aid rather than a replacement for regular maintenance.

Moreover, installing gutter guards or screens can have some drawbacks too. They can cost quite a bit upfront and require periodic checking to make sure they remain in good condition. In addition, if the guard is incorrectly installed then it could end up causing more harm than good!

To sum up: Gutter guards and screens can certainly help keep gutters cleaner but they should not be viewed as a substitute for regular cleaning. Furthermore, one must weigh both the pros and cons before making any decisions about using them. Still though - when used properly - these devices can prove invaluable!