Any on here have any experience with the Detour repellent gel. Have mice under a cement pad and would not be able to check traps on a regular basis and am unable to use poison. Thanks for any help you're willing to give.

Fumigate them with vehicle exhaust if you can.

Someone on here recommended a fumigant "bomb" ducted through rat tunnels, for a complete rat eradication. I think he said you can aide the flow with a leaf blower....if you have enough tunnels to work with, should work for mice too....