How can I get rid of mice in the walls of a timber house? - briefly
Seal all cracks and gaps in the timber structure, then place snap traps or enclosed bait stations in accessible wall cavities; for severe infestations, hire a licensed pest‑control professional to apply targeted rodent‑management methods.
How can I get rid of mice in the walls of a timber house? - in detail
Identify and block every opening that allows entry. Examine the exterior for gaps around utility penetrations, roof eaves, soffits, and foundation vents. Use steel wool, copper mesh, or cement‑based sealant to close cracks larger than ¼ inch; install metal flashing around vents and pipe sleeves.
Set up a trapping system inside the wall cavity. Snap traps positioned against the inner surface of the wall catch active rodents quickly. Bait with high‑fat foods such as peanut butter or dried fruit. Replace traps daily and dispose of captured mice according to local regulations.
Deploy bait stations in accessible voids outside the wall structure. Place tamper‑resistant stations at least 10 feet from children and pets. Use anticoagulant rodenticides approved for indoor use, following label instructions precisely. Rotate bait locations every few days to prevent bait aversion.
Apply a non‑chemical repellent to the interior surface of the timber. Commercial ultrasonic devices or natural oil blends (peppermint, clove) can deter activity when applied to the interior side of the wall sheathing before closing the cavity.
Maintain a dry, uncluttered environment. Repair leaks promptly, reduce stored food sources, and keep firewood elevated and away from the foundation. Regularly inspect the perimeter for new entry points and reseal as needed.
If infestation persists after these measures, engage a licensed pest‑control professional. They can conduct infrared inspections, install bait lines within the structure, and provide a comprehensive eradication plan that complies with safety standards.