Primrose
My wheelbarrow

Shop

Information & Help

My account

1 Year Warranty

Join Our Gardening Club

Cat Repellents

Keep cats out of your garden with our easy to use cat deterrents, including top of the range technology and ultrasonic cat repellents that are inaudible to humans.

Filters
Repellent Type
Power Source
Colour
Material
Out of stock items ShowHide
Showing Pest Control Cat Repellents clear all
Out of stock items ShowHide
Power Source
Sort by
Showing 1 to 14 of 14 items
Showing Pest Control Cat Repellents clear all

Cat Repellent FAQs

How Do Cat Repellents Work?

Cat repellents make felines uncomfortable by preying on three of their super-sensitive senses - vision, hearing, and smell - and conditioning them to associate your garden with these sensations.

Cats are equally active both day and night and can see at a sixth of the light required for human vision. Their hearing is superb, able to hear an extremely large range of frequencies, including ultrasound. Cats have an acute sense of smell, originating from an advanced olfactory bulb and olfactory mucosa - the latter with a surface area double that of humans. They can detect pheromones and respond strongly to plants that contain nepetalactone, which they can detect at less than one part per billion.

Ultrasonic cat repellents

Ultrasonic cat repellents work by emitting a very loud noise at frequencies inaudible to humans - but audible and important to cats. Cats use ultrasound to hunt rodents and other small mammals by eavesdropping on their ultrasonic communications.

Firstly, their motion sensors turn the device on only when a warm body enters the area. This ensures the device only emits sound in the presence of animals, with the animals associating their presence with the noise. (It also saves battery life.)

Secondly, its behaviour-specific timing ensures ultrasound is emitted at random intervals, making it impossible for the animal to become accustomed to the noise.

Lastly, its hyper-resonance frequency covers a range that provides maximum resonance with the ear canal, jumping sharply between frequency levels to provide maximum discomfort. This contrasts with conventional repellers that simply fluctuate or raise the level of sound, which is easier to adjust to.

What is the best Cat Repellent for my garden?

While ultrasound devices are the most effective, they often require batteries or access to the mains, so there is an additional cost involved. Ultrasonic deterrents, however, are small and will not blight the look of your garden.

Lavender is great for pollinators, providing a source of nectar for the UK’s dwindling bee population. Granules and spray will eventually run out, so will require repeat purchases. Cat silhouettes and fence spikes offer a nice long-term solution without the need for maintenance. Fence spikes have the additional advantage of securing your garden from intruders.

Do cats hate ultrasonic sounds?

Ultrasonic sound is perfect as a cat deterrent because while it’s inaudible to most humans, the high-frequency sound can be heard by cats. It’s uncomfortable for cats to hear, much like if humans could hear a loud, high-pitched noise, which will put them off coming near the device.

The important thing to remember is that while ultrasonic cat repellent is uncomfortable, it’s also harmless. Cats will hate it, but it won’t harm them.

Where do you place ultrasonic cat repellent?

Be aware of the range of the ultrasonic cat deterrent when you purchase it. Coverage can vary, so understanding how far-reaching it is will help you decide where to position your device. The height of your ultrasonic cat repellent is important. Keep your device around 10 inches off the ground to approximate the height of a cat. If the device is too high off the ground, it won’t work as the sound will pass over the cat’s head.

To keep cats out of the garden

If you’re looking to prevent cats from entering your garden, look for areas that cats may enter from and place an ultrasonic cat deterrent at these points of entry.

Alternatively, if you know that cats travel through a certain path in your garden, place two devices pointed towards each other along the path or boundary line to create a wall of sound they won’t wish to cross.

To keep cats away from your car

Many people worry about cats laying under their car, so mounting an ultrasonic cat deterrent above your garage can prevent this – just make sure to tilt the device down.

Get the latest news, offers and advice.

© 2025 Cercis Ltd. All rights reserved | Primrose is the trading name of Cercis Ltd (Registration number: 14521244)