A mouse entry-point checklist for your home

An entry-point check is most useful when it produces a short list of locations to inspect, not a rush to seal every opening. Start from safe, accessible areas and keep indoor findings separate from possible exterior routes. An opening near mouse activity is a lead, not confirmation that it is the entry point.

Make a simple property map

Draw the ground floor and mark the garage, basement stairs, kitchen and utility areas. Add the location and date of each finding. Health Canada identifies droppings, gnawing, damaged food packaging and noises as clues that can accompany rodent activity.

Photograph evidence without handling it. Note whether a cupboard was recently cleared or whether the material may have been there for a long time. This helps the inspector distinguish what you observed today from what you only discovered today.

Walk the exterior at ground level

Health Canada’s prevention advice highlights openings around doors, foundations and service pipes. Use those categories to organise the check:

• Doors: look at the bottom and corners of garage and exterior doors.
• Services: photograph visible gaps around pipes and cables entering the wall.
• Foundation: note cracks, damaged covers and accessible wall junctions.
• Storage: record food, waste or clutter close to the building.

Write down the location before moving to the next side of the house. “Rear wall, beside the outdoor tap” gives a technician or repair contractor a clearer starting point than “a hole outside”.

Know where the inspection should stop

Do not climb a roof, enter a confined crawl space, dismantle an appliance or reach into a hidden opening for this checklist. Report those areas as inaccessible. Keep children and pets away from evidence and any existing traps or bait stations.

An opening can also have a building function. Do not block ventilation, drainage, combustion-air routes or equipment exhausts. Ask a qualified person to identify the detail and the appropriate repair before sealing it. Pest work and building repairs need to fit together.

Record evidence without creating a clean-up hazard

The CDC advises against dry sweeping or vacuuming rodent droppings and nesting material before appropriate wet disinfection. Read its current clean-up guidance or arrange professional assistance rather than treating this material as ordinary dust.

For the pest visit, a photo and a location note may be enough. Ask how evidence should be documented and cleaned, particularly where food storage, insulation or a large amount of contamination is involved. This article is an inspection organiser, not a decontamination procedure.

Ask for a treatment and repair sequence

At the assessment, separate three questions: where is activity occurring, how will it be managed, and which repairs are recommended? Ask who will carry out each repair and when it should happen. Do not assume that an inspection quote includes construction work or every exterior opening.

Keep a list with four columns: location, finding, responsible person and completion date. At follow-up, use the same map and observation format. That makes it easier to discuss what changed and what still needs attention.

Our rodent control service explains the inspection and prevention approach. Include your city, property type and the rooms with evidence when you contact us.