Begin with the building edge
An attached garage connects outdoor conditions to indoor storage. Look for visible gaps below a door or around a service entry from a safe position. CDC guidance notes that mice can use pencil-width openings, so a gap need not look dramatic to deserve an assessment.
Interior evidence needs a location
Disturbed packaging beside pet food and a sighting in an upstairs room are not equivalent observations. Keep each tied to its place and date. Avoid turning one undated discovery into a statement about activity throughout the house.
Food storage supports the building work
Durable, closed containers help protect supplies and reduce access to food. They cannot repair a damaged seal. Consider food storage, current pest evidence, and the physical entry route as related parts of the inquiry rather than expecting one action to settle all three.
Ask what is included at the boundary
When calling the Brookfield line, identify whether the concern involves an attached garage or a separate structure. Have any prior sealing work in mind. Ask how the assessment distinguishes an active route from an old opening and which repairs would be included or referred separately.
Further reading: Rodent entry-point guidance