Mouse and Rat Control in Detroit, Dearborn and Hamtramck

Mice and rats rarely show up all at once. It starts with a few droppings in a kitchen drawer, a chewed corner on a cereal box, or scratching in the ceiling after the house goes quiet. In Detroit, mice tend to move indoors when the weather turns cold in autumn, and older brick houses with block or stone basements give them plenty of ways in. We trap the ones already inside, then trace how they got there and seal the gaps so the next ones can’t follow.

Mouse or Rat? Reading the Marks They Leave

Mice and rats leave the same kinds of clues, but their size and placement usually tell you which one you have. That matters, because rats call for bigger traps, heavier sealing and a closer look at the yard.

Gnaw marks deserve a careful look. A rodent’s front teeth never stop growing, so it chews constantly: wood, plastic, soft metal and the coating on wires. Mice leave fine, shallow scratches and small, neat holes, often at the corners of food boxes or the bottoms of cabinet doors. Rats leave rougher, chunkier marks and can open a hole at the foot of a door frame wide enough to see light through. Fresh gnawing looks pale against old paint or wood and darkens with time. Chewed wiring is the part to take seriously, since bare wire inside a wall is a fire risk, so mention any chewing near cables or outlets when you call.

Mice or rats: how the clues usually differ

What you find	More likely mice	More likely rats
Droppings	Small and thin, about the size of a grain of rice, pointed at the ends, scattered along walls and in drawers	Larger, about the size of a raisin, blunt at the ends, often left in small groups
Gnaw marks	Fine scratches and small, clean holes in boxes, bags and cabinet edges	Rough, ragged chewing and bigger holes in wood, plastic bins and door frames
Sounds at night	Light scratching and quick scurrying in walls and ceilings, upstairs as well as down	Heavier thumping and steady gnawing, usually low in the house: basement, crawlspace, under the floor
Rub marks	Faint smudges that are easy to miss	Dark, greasy streaks along walls, pipes and beams they travel every night
Nests	Shredded paper, insulation or fabric in drawers, wall cavities and behind appliances	Burrows in the yard along the foundation, under porches, sheds and garbage cans
Where you notice them	Kitchens, pantries, upper floors and attics	Basements, garages, alleys and the outside of the house

What a Mouse and Rat Job Usually Involves

Rodent work is two jobs done together: removing the animals already inside and closing the doors they used, since sealing alone can shut animals inside the walls. A typical job runs in this order:

1. Inspection for entry points. The search covers the foundation, the sill where the house sits on it, vents, the garage door, porch steps and every spot where a pipe or cable passes through a wall. We always check where utility lines enter the foundation, because a gap about the width of a pencil is enough to let them in.
2. Exclusion. Openings get packed or covered with materials rodents struggle to chew through: copper or steel mesh, hardware cloth, metal flashing and sealant, plus a door sweep wherever light shows under a door. Foam on its own rarely holds. Sealing them out this way is what the trade calls exclusion.
3. Trapping. Snap traps go along the walls where droppings and rub marks show, often inside covered boxes in homes with kids or pets.
4. Monitoring. Old droppings are cleaned up so new ones stand out, and each check shows whether activity is dropping off or moving somewhere else.
5. Follow-up checks. Traps are emptied and reset, and the sealed spots are looked over again. When the traps stay empty and no fresh droppings turn up, the job is close to done.

Bait stations are the black boxes you may have seen along the foundations of stores and apartment buildings. The trade uses them mostly outdoors: a locked, tamper-resistant box set against the wall, with the bait held inside where children, pets and wildlife can’t reach it. Indoors, most pros lean on traps rather than poison, because a mouse that eats bait can die inside a wall, where nobody can reach it and the smell lingers. The product label sets where a bait may go and how it must be secured.

What You Can Do About Mice and Rats While You Wait

A few small changes make the house less inviting and make the inspection more useful.

• Move cereal, flour, rice, pet food and birdseed into glass, metal or hard plastic containers with tight lids.
• Pick up pet bowls at night and wipe crumbs off the counters before bed.
• Keep trash in cans with lids, inside and out, and take it out often.
• Clear boxes and clutter away from basement walls so the edges of the floor are easy to see.
• Write down where you’ve found droppings or heard noises, and at what time of night.
• Don’t stuff holes with paper or foam. Mice chew through both, and an open hole shows where they’re running.
• Keep kids and pets away from droppings and nests until they’ve been cleaned up.

Why Mice Come Back and How to Clean Up After Them

Tell Us Where the Mice Showed Up

If you’ve found droppings in a drawer or heard something moving overhead, tell us what you’ve noticed and where in the house. Call (313) 351-0267, or Schedule a Visit and we’ll look for how they’re getting in.