The species is the clue. The assembly is the job.

Signs

Droppings, rub marks, scratching, or a gap a pencil fits.

Risk

One mouse in September is a winter kitchen if the joint stays open.

Treatment

Inspect, treat what is inside, and close the 6 mm gaps.

Follow-up

The joints go on a list, then we check that they stayed closed.

Signs

A steady flight line to an eave, a soffit, or a hole in the ground.

Risk

A nest over the door or the play area does not wait for Saturday.

Treatment

Remove the nest, then screen the void.

Follow-up

The opening we closed stays closed. A trap does not end the nest.

Signs

A trail at the counter, the slab joint, or wet wood.

Risk

The trail returns if irrigation or an open joint stays.

Treatment

Name the species, treat the active colony, and note the moisture.

Follow-up

The joint and the water go on the list. A spring spray does not.

Signs

Droppings, shed skins, and live activity at night near heat, water, and plumbing.

Risk

They travel between suites through wall voids and pipe penetrations, so one unit's problem becomes the building's.

Treatment

Monitor to find the source, bait what is active, then seal the routes between units.

Follow-up

Scheduled rechecks until activity stops. This is a program, not a single visit.

Signs

Spots, cast skins, or bites that line up with where someone sleeps.

Risk

Spraying first scatters them and smears the evidence.

Treatment

We inspect and name it. Whole-suite heat is a refer, not a mouse visit.

Follow-up

You get a name and the next step. Not a room plan sold as a cure.

Signs

Moths or beetles in a kitchen, a pantry, or a dining room.

Risk

The adult is what you see. The source is often a bag and a ceiling void.

Treatment

Find the product and the void. Do not fog the room.

Follow-up

Source gone, void noted, a file an inspector can read.