EA’s banishing incantation from his book Kingdoms of Flame
The angelic banishing incantation channelled by @Micah from Meton found here:
Both of these are good for a general sweep of an area.
If I feel that I am under attack, and deem it necessary to put up a boundary, I will use Jason Miller’s Hekate banishing ritual, from his book Protection and Reversal Magick. I find it to be powerful, and really like it.