I have been smelling a strong urine odor coming from my fireplace in my living room:(. Every fall we get 1 or 2 mice that get in from the fireplace. We are always able to trap them within a week of spotting them. This time however the mouse is outsmarting us:(! We’ve set several traps and have yet to trap one! The urine smell is getting worse by the day!! I would turn the fireplace on, but I’m terrified one will run out of the fireplace and into our house! How can I get rid of the mice, clean the fireplace and get rid of the awful odor??