When we got Bells she had accidents in our old house all the time. I was like you getting a new house and worried... But in the new house she hasn't had any accidents unless she was sick. She always uses the potty pads or gets close anyways. But look out for door frames and corners of cabinets. I didn't look to see how old yours was, but teething Oh man let me tell you she has tore my door frame up. If I catch either one of them chewing on things besides toys I always tell them NO! Good Luck with your house!