Entry points, gaps & exclusion

How small a gap?

Mice squeeze through openings roughly the width of a pencil; rats need a bit more, but damaged vents, loose flashing, and pipe penetrations still give them a corridor. We trace rub marks and droppings to the actual ingress, not only the room where you heard noise.

Common breach lines

• Utility penetrations (water, gas, electrical) through walls and slabs
• Garage and external doors with worn seals or daylight gaps
• Roof voids, eaves, and broken vent screens
• Drainage and low-level building perimeters next to heavy vegetation or refuse

Why trapping alone fails

You can knock down activity and still lose the war if new animals use the same hole tomorrow. Exclusion closes the loop—materials and scope are named in your quote so you know what was proofed versus what needs a builder or landlord.

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