Speaking in general terms, you should make a point of cleaning your gutters at least twice a year. Depending on what sort of foliage you have near your home (such as pine trees), you may want to clean once every three months.
If gutters are not cleaned and water overflows from the gutters, it will fall along the foundation of the building. This can soften the soil under and around it which will lead to foundation cracks. ... In extreme cases, water damage can cause structural failure in a building.
The ladders we use never touch your gutters to protect them. Instead we use ladder "spreaders" and bag the gutter clutter as we go. No mess on the ground, and your gutters are good to go.
We can also blow your roof to slow down gutter clutter.