score:6
The most skillful way would be to ordain as a monk, foregoing the ownership of a house and not having to worry about it. Aside from that, the most you can probably hope to do is keep a clean house and don't let the conditions arise for them to come to you.
Here's a good video on this issue: Ask A Monk: Dealing With Pests
This video includes advice that there are three Buddhist ways to deal with a problem: