Are the plants too close to the building?
If your house had wood siding or other siding that allowed the vines to grow under it, then I would say keep it away. Since you have brick veneer, that will not be an issue, It may attach itself to your brick if it is a climbing vine, that would be the biggest issue other than the vent you have in the picture. The vine can grow into and through the screen mesh of the vent.

No need to remove the leaves unless it gets really deep. and it covers the vines.