Many people believe cats keep mice away. It’s a common reason why cat lovers feel their homes stay rodent-free. After all, even Number 10 has a cat to deter mice! But to what extent is it true? Let’s look at how well cats deter mice. In addition, we will consider what else you can do and when to call in professional pest control for mice.
How well do cats deter mice?
Cats are natural hunters. Their scent alone can sometimes send mice elsewhere. When a mouse smells a cat, it may avoid the area completely. However, this doesn’t always stop an infestation from starting. Although cats deter mice to a degree, they usually only control surface-level activity. Mice hiding deep in walls or lofts may never come into contact with the cat. Also, well-fed cats may ignore pests unless they are particularly playful. Some cats simply lack the hunting instinct altogether.

Even if your cat catches one or two, mice breed quickly. One female can produce over 30 offspring in a season. Because of this, a single pet cannot fully manage an infestation. Therefore, you should not rely on cats alone to deter mice long-term.
Sometimes, a cat may even bring live mice into the house, which can spread droppings or fleas. If a cat brings in prey regularly, you might want to check for signs of outdoor rodent issues too.
Other effective ways to deter mice indoors
Since cats deter mice only to a point, it helps to use other proven methods. Firstly, block entry points. Mice squeeze through gaps as small as a 5p coin. Seal holes around pipes, under doors and between floorboards using wire wool and filler.
Also, store food in airtight containers. Mice will chew through cardboard or plastic easily. Keep worktops free from crumbs and wipe down surfaces each night. Additionally, avoid leaving pet food out overnight. Mice eat a very varied diet along with eating some strange things like soap and candles,

Next, reduce clutter. Mice like to hide and build nests in quiet undisturbed places. Keep cupboards, lofts and garages tidy too. Use closed storage bins for soft furnishings or clothing.
These measures usually have limited effect. For stronger protection, we offer professional rodent-proofing and monitoring. This helps when your cat deters mice only partially or when infestations develop. We also use pet-safe techniques suitable for households with domestic animals.
Ultrasonic and electromagnetic devices may also help as part of a prevention plan. These emit sounds that mice dislike. However, they work best in combination with other steps. We can also help to ensure that mice do not reinfest. Call us for pest control in the London area.
We’re always here to help when home efforts aren’t enough.