After noting mouse droppings in and around our kitchen pantry, i set a trap and caught one. Last night, to my wife's surprise, we found trace of another mouse that tore open a bag of wheat flour. So i decided to investigate a littler further and got an idea as to how these mice are coming into our house. In our mechanical closet in the garage, there is a sewer main stack coming up through concrete slab in a sleeve with what seems to be a condensate piping going in parallel to the sewer line and there is enough gap between the pipes for mice to fit through. In the kitchen behind the electric range, there is what seems to be a gas pipe with shut off valve come up through the floor but there was no escutcheon around it (see picture). I've lived in Southern Walk (townhome) for 6 years now and have never noticed this gap behind the range to the wall. My guess is that this gas piping should've been in the wall with an access panel but the contractor when roughing-in, must have missed it and just left it there. So over this weekend, i will get a fire-caulk from home depot to fill these gaps and will also spray some peppermint oil around them. I am thinking about contacting Van Metre about this issue but i am sure they will just tell me that my warranty expired 5 years ago. Not a happy camper!