This year, they've taken up residence under neath my back porch. I've been reluctant to take any steps to get rid of them, as I was hoping I could find some way to do it without killing them.
I've found a site that says wasps are extremely territorial - so if there's another nest anywhere near theirs, they will simply leave and never return.
Apparently Canadian Tire sells fake wasp nests for this exact purpose so I'm going to get a couple and try it out.
If it doesn't work, I'll be looking for other suggestions - problem is, the nest is directly under my back porch, which is right near my kitchen window and my patio door - a high traffic area for us in the summer - so I'm a bit adverse to using anything toxic or flammable.
Hopefully the fake nests do the trick.