
Mouse Droppings vs Rat Droppings
Size and shape tell you which animal is in your house. The rice-grain vs capsule test, and where each shows up in Detroit homes.
Quick answer: Plain-English Detroit rodent guides: how to tell mouse droppings from rat droppings, how long a dead mouse smell really lasts, why mice move in for the winter, and what rats are doing in your basement. Every guide ends with the step that actually fixes the problem.
Most rodent advice on the internet is written for houses in general. These guides are written for this city’s housing: pre-war stock with coal chutes and block foundations, Michigan basements, sewers around 95 years old, and the two rodent seasons Detroit runs on, indoor mice from September to February and outdoor rats from June to October.
Start with the guide that matches what you are seeing, hearing, or smelling. If the signs point to an active problem rather than a question, the services pages cover the work itself, and the signs and problems hub is the diagnostic index for the whole site.

Size and shape tell you which animal is in your house. The rice-grain vs capsule test, and where each shows up in Detroit homes.

One to two weeks is normal, but size, heat, and airflow move the timeline. What to expect, day by day, and what actually helps.

Mice move in from September and breed all winter in Detroit walls and attics. Why it happens, where they hide, and the autumn checks that stop it.

A pencil-width gap is a door. The six openings that let almost every mouse into a Detroit house, and the materials that close them for good.

Food, water, and harborage. The yard habits that invite Norway rats to settle, and how to make your yard a place they only pass through.

One sighting rarely means one mouse. The signs that separate a visitor from an infestation, and what to do at each level.

A Detroit housing pattern: sewer lines, floor drains, and block foundations. Why basement rats show up, and why the fix is at the route.

Confirm the noise, find the nesting, and work out how they got up there. The first three steps, in the right order.
Reading about a problem you would rather hand over? Call for an inspection and get a written quote before any work starts.
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