How to keep mice away naturally

Start by distinguishing prevention from infestation

If you have no current evidence and want to reduce the chance of mice entering, start with storage and building maintenance. If new droppings, gnawed packets or repeated sightings are already occurring, you need to establish the extent of activity. A prevention product is not an adequate response to an occupied nest.

Photograph signs without touching them and record where they appear. An old mark in a cupboard is different from fresh damage to a newly stored packet. Avoid assuming that mice have left because a noise stops for a night. A controller can help identify the species, locate the route and suggest a plan that takes your wish to minimise pesticides into account.

Make food storage the first natural measure

Remove the reward for entering your home. Keep dry food in robust, tightly closing containers, clear crumbs under accessible appliances and avoid leaving pet meals out overnight. A clip on a thin bag does not prevent gnawing. Inspect neighbouring packets if one has been damaged.

Remember the food outside the kitchen: bird seed, pet biscuits, grass seed and stored snacks in spare rooms can all matter. Clean the bin area and close lids properly. Do not eat food that may be contaminated, and do not feed suspect stock to animals. These changes are straightforward, but they work only if everyone in the household follows the routine rather than leaving one dependable food source available each night.

Proof entry points without damaging the building

Inspect safe, accessible gaps around pipes, door edges and service entries. Mice can use very small openings, so include awkward corners rather than looking only for obvious holes. Ask for suitable gnaw-resistant repairs; soft filler or expanding foam alone is not a dependable long-term barrier.

Preserve air flow, drainage and fire-safety features. An air brick must not simply be covered with a solid panel, and fire stopping should be repaired appropriately. If an opening appears active, agree the sequence of control and exclusion with a professional before sealing it. Renters should send photographs of defects to their landlord or managing agent. Proofing is a physical prevention measure, not an excuse to confine animals inside a wall.

Reduce nesting places and make checks easier

Mice can shelter in undisturbed packaging, fabric and stored clutter. Sort manageable areas rather than emptying a whole loft or garage into your living room. Wear gloves where contamination is possible and avoid shaking dusty material. Keep clean belongings separate from items awaiting assessment.

Robust lidded storage and clear inspection space beside walls make new evidence easier to see. Reducing clutter does not remove mice already present, but it reduces convenient hiding places and helps a controller inspect safely. Do not climb onto unstable shelving or walk on unboarded loft areas to complete a home checklist. If access is unsafe, explain that limitation when arranging an inspection rather than taking a risk to obtain another photograph.

What peppermint and scent deterrents can realistically do

Peppermint is commonly suggested because rodents use smell when navigating and feeding. That does not establish that a household scent will exclude mice from a particular building. A smell you notice strongly may still be insufficient where there is food, shelter or an established route.

Scent methods cannot repair a gap, remove contaminated material or confirm that an animal has left. Treat them as optional supporting deterrents, not the foundation of your plan. If you try one, monitor the same places for new evidence and keep your proofing routine. Do not interpret a stronger smell as better protection, or keep increasing the amount of oil when fresh droppings show that the actual problem is unresolved.

Why natural does not automatically mean safe

Concentrated plant oils can irritate people and may pose risks to animals, depending on the product and exposure. Avoid putting oils on pet bedding, food surfaces or places that animals may lick. Never apply a rodent deterrent directly to an animal. Keep products labelled and stored away from children.

Do not use mothballs, fuel, bleach mixtures or other improvised chemical barriers as mouse remedies. Household products should be used only for their intended purpose and according to instructions. A strong smell can also make rooms unpleasant without improving control. If someone has breathing sensitivities, or you keep small pets, ask about suitability before using scented products. Suspected ingestion or illness needs prompt professional medical or veterinary advice, not another home remedy.

Where MintGuard helps, and where it does not

MintGuard contains pressed peppermint, clove and castor oil balls and is sold as a rodent repellent. It is not a treatment for an established infestation. Use it only as part of a plan based on food control, suitable proofing and monitoring. Position balls in dry, retrievable spots away from food and out of reach of children and pets.

A pack contains 12 balls for £39. Two packs cost £69, three £89 and four £109. Each ball lasts 30–60 days. MintGuard is sold only on mintguard.co.uk and has a 90-day money-back guarantee. Optional Secure Delivery + Lifetime Warranty costs £4.95. These are purchase details, not evidence that a scent will solve every mouse problem; continuing activity still needs an appropriate response.

Clean evidence safely and monitor what changes

Do not dry sweep or use an ordinary vacuum on droppings. For a small accessible area, ventilate where practical, wear gloves and use a suitable disinfectant according to its label before careful removal. Avoid mixing cleaning products. Extensive soiling or contaminated insulation warrants professional advice rather than a bigger household cleaning session.

Keep a dated note of locations before and after safe cleaning. Look for new pellets, fresh gnawing and further damage to protected storage. The NHS notes that leptospirosis can spread through infected animal urine; protect broken skin and wash hands after dirty work. If you become unwell after possible exposure, seek medical advice and mention the contact. The purpose of monitoring is to test whether the plan is resolving activity, not simply whether the room smells different.

When a low-chemical plan needs professional help

Call a pest controller if evidence continues, a nest is suspected, mice reach food preparation areas or wiring appears damaged. Explain your preference to minimise pesticides and ask how the proposed approach deals with welfare, follow-up and entry points. No responsible plan should promise that one scent alone will remove an established infestation.

GOV.UK can direct you to your council's pest reporting route; services and fees vary. Landlords and managing agents may need to coordinate structural repairs. Glue traps have been illegal for the public to use on rodents in England since 31 July 2024, with restricted professional licensing. Do not improvise traps or assume that something marketed as poison-free is automatically humane. Professional advice can help you choose a lawful, practical response rather than prolonging an unresolved problem.

Common questions

Sources

• GOV.UK – Report a pest problem
• NHS – Leptospirosis
• GOV.UK – Glue trap licences