Rats are high on the list of pests we’d rather do without. If you’re looking for a more natural approach, deterrents and repellents can help make certain areas less inviting — but they work best as a supporting layer alongside other rat control methods such as proofing, hygiene and (when needed) trapping, not as a standalone fix.
In this guide, we’ll cover the pros and cons, then share 7 natural rat deterrents (with simple “how to use” steps) you can add to your overall plan.
Quick Guide (Realistic Expectations)
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Best for: Preventing repeat visits, protecting specific areas (bins, sheds, cupboards), reinforcing proofing.
- Not enough for: An active infestation (droppings daily, strong smell, nests, daytime sightings).
- Your reliable “core” plan: Remove food/water + reduce cover + seal entry points; then use traps/bait stations safely if activity continues. (Natural deterrents sit on top as the extra layer.)
- Safety first: Keep essential oils/ammonia away from children and pets; ventilate enclosed areas; follow product labels.
What Are Natural Rat Deterrents and Repellents?
Before we start, it's crucial to understand what we mean by natural rat deterrents and repellents. These substances aim to discourage rats from entering or lingering in specific areas, without relying on harsher chemicals. This approach is especially appealing to households with pets or young children.
Pros of Natural Rat Deterrents
- Natural methods are proactive rather than reactive. This means you are taking action to prevent an infestation from occurring rather than waiting until it's started. Waiting too long may have more serious and costly implications, and may involve killing rats.
- Another major advantage is the lack of poisons. Rodenticides can pose risks if used incorrectly or where pets/wildlife could access them. Natural and non-toxic deterrents can help reduce reliance on harsher options as part of a wider plan.
- Similarly avoiding rat snap traps prevents the risk of injury to pets, young children, or those setting up the traps.
- Natural deterrents and repellents are also more convenient and cheaper. They use ingredients that are often already available in your home. This makes them a convenient first line of defence.
Cons of Natural Rat Deterrents
- The efficacy of natural rat deterrents and methods can vary. What works well for one household might not for another.
- Rats may also build up immunity to the deterrents with time.
- Patience may be required as natural deterrents can take longer to see results compared to chemical solutions.
- In some cases, the odours or tastes that discourage rats might not be palatable to humans either. Therefore, it's important to choose methods that are safe and compatible with your living situation.
7 Natural Rat Deterrents and Repellents
Here is a list of natural rat deterrents along with suggested strategies for their use. Remember, consistency and creativity in applying these tactics are often key to success.
#1 Peppermint Oil
Rats are known to have a keen sense of smell, and they're not particularly fond of the strong scent of peppermint. Peppermint works best when it’s concentrated near runways and entry points (e.g., cotton balls).
Alternatively, you can soak cotton balls with Peppermint oil and place them strategically. Focus on areas where rats are likely to pass through to help deter them.
Directions
- Place a few drops of peppermint oil on cotton balls and let it soak in.
- Position the balls strategically around the house. Focus on the corners of rooms, near potential entry points, or close to gnawed materials.
- Refresh the oil weekly (or sooner if the scent fades / in damp areas).
- Keep soaked cotton balls and oils out of reach of children and pets (strong essential oils can irritate or be harmful if licked or spilled).
#2 Ammonia
Ammonia is a common by-product of decomposing animal urine. Its strong odour can act as a repellent as the smell senses danger, possibly from a predator, so rats steer clear.
Placing ammonia-soaked rags in areas frequented by rats can help keep them at bay. However, use ammonia with caution as it can be harmful to inhale for both humans and animals.
Use ammonia only in well-ventilated areas and keep it well away from children and pets. Never mix household chemicals, and always follow the label guidance. Avoid using ammonia in enclosed spaces (e.g., cupboards/loft voids).
Directions
- Mix one or two parts water to one part ammonia.
- Dip a rag or sponge into the mixture, wring it out until it's damp, and place it near rat activity.
- Be sure to keep it out of reach of pets or children.
#3 Catnip
Catnips are loved by cats because they mimic feline sex hormones. However, its aroma can serve as a rat deterrent. Results vary — some people use catnip as a supporting deterrent (especially outdoors), but it shouldn’t be relied on as a main control method.
Directions
- Plant catnip around the perimeter of your home or garden.
- Place dry catnip in sachets or porous bags to contain and concentrate the smell in target areas.
#4 Bay Leaves
Bay leaves, while a staple in many cuisines emit an aroma that rats find intolerable. They're easy to use and their effects can be long-lasting.
Directions
- Crush dried bay leaves to release the scent. Then sprinkle the bits near entry points or areas where you suspect rat activity.
- You can also tuck whole leaves into pantry corners, cabinet crevices, or under kitchen appliances.
#5 Onions
The pungent smell of onions can serve as a deterrent against rats. Like ammonia, the smell isn't harmful but can be unpleasant to live with for humans.
Directions
- Slice the onions and place them near rat high-traffic areas.
- Onions can also be used to create a boundary - spreading their skins around the perimeter of your home may prevent rats from coming too close.
#6 Garlic
Garlic's powerful aroma is a natural deterrent for rats but can also keep vampires away if you're into that sort of multitasking.
Directions
- Crush the garlic cloves or place them in mesh bags.
- Position the bags near rat pathways, preferably in shaded areas.
- Be prepared for a bit of a garlicky smell in your home.
#7 Plant-Based Rodent Repellent Sprays
Commercial repellent sprays made from natural oils can be an efficient option. They are great if you're looking for a convenient, ready-to-use application. Look out for ones with active ingredients known to repel rats, such as peppermint oil, castor oil, or garlic oil. Follow the instructions on the bottle for the best results.
Final Word
Using natural rat deterrents and repellents is a great proactive way to make key areas less inviting and reinforce a wider control plan to get rid of rats. Used alongside proofing and hygiene, they can help discourage repeat visits and reduce the chance of the problem escalating.
We go to great lengths to ensure that our rodent proofing and repellent products are effective, fast & easy for everyone. You may also find our expert guide useful if you want to learn more about getting rid of rats from your home or workplace.
