How to Get Rid of Mice in Your Home (Singapore)

Mice are small, quick breeders, and once a couple settle in, numbers climb fast. If you’ve spotted droppings or heard scratching at night, knowing how to get rid of mice quickly will stop a minor issue becoming an infestation. Here’s a practical, Singapore-focused approach combining trapping, sanitation and proofing.

Confirm it’s mice

Before treating, check the signs. Mouse droppings are small (3–6mm), dark and pointed at the ends — smaller than rat droppings. You may also notice:

• Faint scratching or scurrying in walls or ceilings at night
• Gnaw marks on packaging and wires
• A musky smell in enclosed spaces
• Shredded paper or fabric used for nesting

If droppings are larger, you may be dealing with rats — see our guide on the signs of rats in your house to compare.

Step one: cut off food and water

Mice can survive on very little, so removing food sources is essential to getting rid of mice:

• Store dry food, snacks and pet food in sealed containers
• Clear crumbs and wipe surfaces, especially the kitchen, nightly
• Keep bins covered and empty them regularly
• Fix leaks and dry out sinks

A home with no easy food makes traps and proofing far more effective.

Step two: set traps the right way

Trapping is the most reliable DIY method for clearing mice. To get results:

1. Place traps along walls, where mice run — they rarely cross open spaces.
2. Use several traps, closely spaced, as mice are cautious and numbers are often higher than they appear.
3. Bait with a small amount of something sticky like peanut butter rather than loose food.
4. Check and reset daily.
5. Keep traps away from children and pets.

Snap traps and enclosed traps both work. Whatever you choose, persistence and good placement matter more than the type.

Step three: a note on poison and pets

Rodenticide bait can be effective but carries real risks in homes with children and pets — including secondary poisoning if a pet eats a poisoned mouse. If you use bait at all, use enclosed, tamper-resistant stations and follow the label exactly. In many homes, trapping plus proofing is the safer route.

Step four: proof your home against mice

Proofing is what makes results last. Mice can squeeze through gaps as small as a pencil, so seal:

• Holes around pipes, cables and vents (use steel wool plus sealant)
• Gaps under doors with door sweeps
• Cracks in walls and around windows

Fitting fine mesh on windows and vents adds protection against mice and insects alike. Our no-drill window insect screens help cover window openings, especially useful on lower floors or near greenery and bin areas. For broader rodent help, see our guide on how to get rid of rats and mice.

Step five: declutter

Mice love hidden nesting spots. Clear cardboard, paper piles and clutter from store rooms, under sinks and behind appliances. Less clutter means fewer places to nest and easier monitoring.

When to call a professional

DIY works for small mouse problems caught early. But call a professional if:

• You keep finding fresh droppings despite trapping
• You hear ongoing activity in ceilings or walls
• You live in a flat where mice travel between units and chutes
• The problem returns repeatedly

A licensed rodent control service in Singapore can find hidden entry points and nests, and set up a safe, effective plan that DIY may miss — the surest way to get rid of mice for good in stubborn cases.

Common trapping mistakes

Most DIY mouse problems that drag on come down to a few avoidable errors:

• Too few traps. Mice breed fast and numbers are usually higher than they look. A couple of traps rarely keeps up — set several, closely spaced, along walls.
• Over-baiting. A blob of peanut butter lets a mouse feed without triggering the trap. Use a small smear so it has to work for it.
• Placing traps in open space. Mice hug walls and skirting and avoid open floor. Set traps flush against the runs where droppings and grease marks appear.
• Giving up after the first night. Mice are cautious of new objects for a day or two. Leave traps in place and keep checking and resetting daily.
• Trapping without proofing. Clear every mouse and new ones still walk in if the gaps remain. Sealing entry points is what makes the result last.

Do natural deterrents work?

It’s tempting to reach for peppermint oil, ultrasonic plug-ins or other “humane deterrents” instead of trapping, but the evidence is weak. Strong scents may briefly discourage mice from a spot, and ultrasonic devices show little reliable, lasting effect — mice habituate quickly and simply route around them. Relying on deterrents alone usually means the problem quietly continues while you wait for results that don’t come. The methods that genuinely work are unglamorous but proven: cut off food and water, trap along the runs, and seal every entry point so new mice can’t replace the ones you catch. If you want to try a scent deterrent, treat it as a minor extra alongside trapping and proofing, not a substitute. The same goes for leaving it to a cat — some mouse, some of the time, but not a control method you can depend on for a real infestation.

Frequently asked questions

Related guides

• Signs of rats in your house
• Rat vs mouse differences
• How to keep rats away
• How to get rid of rats and mice
• Window insect screens

*Mice keep coming back? Get a free rodent control quote and we’ll help you clear and proof your home.*