Quote Originally Posted by sasvermont View Post
I will go under the sink and basin areas and put steel wool around the pipe area that is open enough for critters to come through.
That is a usual route - around pipe areas. I had an apartment with mice. The landlord suggested a cat but offered no other help. I shudder when I remember how many mice I found.

Steel wool around the water pipes and drain pipes but also - if you have as I did then -- steam heat pipes.

Anytime I see any kind of opening in my house I stuff steel wool in it. A little quirk.