[masraum]

Originally Posted by jhynesrockmtn

Don't you solve this by first making your garage and house impenetrable to rats/mice, other little creatures, then poison or trap/kill the ones left inside? That has been the approach exterminators used to help with my rat problems at a few house when I lived near Lake WA in Kirkland. We had tons of them. If you don't fix how they are getting in, this cycle will never end.

Unfortunately, sometimes you just can't make a place impenetrable. It's probably easier with slab on grade.