Mice
and rats

Mice and rats come in for food, warmth and shelter, through gaps much smaller than you would think. Block the way in and take away the food.

Signs
Droppings, gnawing, scratching
Active
At night, more in autumn and winter
Gets in
Through small gaps and pipes
Our approach
Exclusion and live catch, no poisons

Know what you are dealing with

Droppings

Mouse droppings are small like rice; rat droppings are much larger.

Gnaw marks

Fresh marks on food packets, wood and cables.

Sounds at night

Scratching in walls, ceilings and under floors.

A house mouse, Mus musculus, indoors.
A house mouse, Mus musculus, indoors. Photo: Justin, CC BY 4.0, via iNaturalist

No poisons, no glue traps. They cause suffering and can harm pets and wildlife. Shoo does not sell them.

Signs to look for

  • Droppings in cupboards, along walls and under the sink.
  • Greasy marks along skirting boards where they run.
  • Shredded paper or fabric used for nests.
  • Scratching in walls or the loft at night.

The plan

  1. 1

    Close the gaps

    Steel wool and sealant around pipes, vents and doors.

  2. 2

    Store food sealed

    Hard containers, bins with lids, no pet food left out.

  3. 3

    Live catch traps

    Along walls, checked daily; release as local law allows.

  4. 4

    Call a pro for rats

    Rats in numbers need professional help.

Solutions for mice and rats

Gap and crack sealant

Closes gaps around pipes, vents and doors, with steel wool packed in first.

Find shops near you (opens a new tab)

Opens Google Maps. Call first to check they have it.

Shoo does not sell these yet. They are standard products sold by other shops; follow the label on the one you buy.

What people worry about

Why do the mice keep coming back?

Usually because the way in is still open. Sealing gaps with steel wool and sealant matters more than anything you put down.

Is poison safe if the cats can't reach it?

Pets can still eat a poisoned rodent, and rodents can die inside walls. Shoo does not recommend poison: seal, store food and use live catch traps.

Glue traps are the only thing that works. Is that OK?

Glue traps cause slow, distressing deaths and some places restrict them. Live catch traps checked daily, with release as local law allows, are the humane option.

Do plug-in ultrasonic repellers work?

They are not a fix to rely on, and people often report mice ignoring them. Exclusion and food storage work better.

We had rat proofing and still hear them. Is that normal?

It can mean an animal was sealed in or another gap is open. Ask the company for a follow-up check and how they make sure animals are out before sealing.

Can they get into the car?

Yes, cars give shelter, especially with food inside. Keep the car empty of food and ask a garage to check wiring if you see signs.