How to Keep Mice Out of Walls: The Professional Exclusion Playbook
Quick Answer: To keep mice out of your walls permanently, you must seal every exterior gap larger than a dime (1/4 inch) using a combination of medium-grade stainless steel or copper mesh and outdoor-rated premium silicone caulk. Mice use plumbing lines, weep holes, and foundation cracks as highways into drywall voids. Standard expanding foam will