How long will a bat trapped in a house live? A bat has infiltrated your home and you wonder how long it will stay there within the home 's walls or attic? That's a very interesting question, but one you would find is a bit more confusing to answer. The average bat lives between 10 years and 20 years. If there are rodents or large insects to eat, and there is a safe place to live in, as in your attic, then it can be there a for a long time. https://patriotwildlifecontrol.com/ Patriot Wildlife Control 401 E Valleywood Dr Collierville, TN 38017 (901) 287-1932 Like us on Facebook! https://www.facebook.com/partiotwildlifecontrol/ https://local.google.com/place?id=10659089766290853426&use=posts&lpsid=462679104139756888