Do you hear faint scuttling noises behind your walls, especially late at night when everything else is quiet? Or maybe you’ve noticed small droppings appearing in cupboards, under sinks, or along skirting boards?
In our experience, those early signs are rarely a one-off. When mice move in, they settle quickly, and most homeowners only realise the extent of the problem once it’s already established.
We’ve seen this time and time again—what starts as a bit of noise in the loft or behind a kitchen unit can turn into a full infestation within weeks. Mice don’t just cause damage by chewing wires, insulation, and food packaging—they also contaminate surfaces and can carry bacteria that pose real health risks.
The good news is, once you understand how they’re getting in and what’s attracting them, you can take control of the situation. The key is acting early and being thorough with your approach.
Seal Entry Points
From what we’ve dealt with on real properties, this is where most people go wrong—they underestimate just how small a gap a mouse can use.
A mouse can squeeze through a gap no bigger than around 6mm. That’s roughly the size of a pencil. We’ve found entry points in places most people wouldn’t even think to check—behind washing machines, under kitchen units, around boiler pipework, and even through tiny gaps in brickwork.
When checking your home, focus on:
- Gaps around doors and window frames
- Pipe entry points under sinks or behind appliances
- Air vents and external wall penetrations
- Cracks in brickwork or gaps in flooring
Once you find them, sealing properly is critical. From experience:
- Copper wool or steel wool works well because mice can’t chew through it
- Expanding foam is useful but should be combined with mesh for durability
- Silicone sealant helps finish and close smaller gaps cleanly
If you leave even one access point open, they will find it again.
Peppermint Essential Oil
We’ve tested natural deterrents like peppermint oil in real situations, and while it’s not a complete solution on its own, it can help as part of a wider approach.
Mice rely heavily on their sense of smell, and strong scents like peppermint can make certain areas less appealing. The key is using it in the right places—not just randomly.
Where it tends to work best:
- Near known entry points
- Inside cupboards where activity has been spotted
- Along skirting boards or behind appliances
Soaking cotton balls and placing them strategically is effective, but you’ll need to refresh them regularly. Sprays can also help, but they fade quickly.
It’s worth being clear—this won’t remove an infestation, but it can support other methods by discouraging movement in certain areas.
Trap and Release
If you’re looking for a humane approach, trap and release can work—but only if it’s done properly.
One mistake we often see is people releasing mice too close to home. Mice have a strong homing instinct, and if they’re released nearby, they often find their way straight back.
From what we’ve seen:
- Release locations should be at least 5km away
- Woodland or rural areas are more suitable than urban spaces
- Traps need to be checked regularly to avoid unnecessary suffering
Placement matters just as much as the trap itself:
- Along walls (mice rarely cross open spaces)
- Near droppings or known routes
- Behind appliances or in quiet areas
If you’re not consistent with trapping, the problem usually continues.
Electronic Repellents
Electronic repellents are something a lot of homeowners try, and we’ve seen mixed results depending on the setup.
These devices emit high-frequency sound waves designed to disturb rodents. In some cases, they can reduce activity—but they’re not a quick fix.
From practical use:
- They work best in smaller, enclosed spaces
- Open-plan areas reduce their effectiveness
- Furniture and walls can block the signal
They’re most useful as a preventative measure rather than a solution to an active infestation. If mice are already settled, you’ll need to combine this with sealing and trapping.
Call in the Professionals
There comes a point where DIY methods stop being effective—especially if the infestation has spread into multiple areas like lofts, cavities, or under floors.
We’ve seen situations where homeowners tried everything for weeks, only to find the problem was much bigger than expected.
Professionals will:
- Identify hidden entry points you might miss
- Assess how widespread the infestation is
- Use targeted treatments based on the property layout
More importantly, they’ll help prevent it from happening again—not just deal with what’s visible.
If you’re still hearing activity after trying the basics, it’s usually time to escalate.
Overview
Mice are one of the most common issues we see in homes, and the difficulty usually comes down to how quickly they’ve been allowed to settle.
Here’s what actually makes a difference:
- Identify entry points – Even the smallest gaps around pipes, walls, or flooring can allow access, so sealing thoroughly is essential
- Inspect food storage – Food left accessible, even crumbs, will attract and sustain activity
- Clean consistently – Regular cleaning removes the scent trails mice rely on
- Reduce clutter – The more hiding spaces available, the easier it is for mice to nest undisturbed
- Use traps correctly – Placement and consistency matter more than the type of trap
- Use repellents as support – These can help reduce activity, but won’t solve the root issue
- Consider professional help – Especially if the activity continues or spreads
From experience, it’s rarely just one fix—it’s a combination that gets results.
There are a few things that often get overlooked but make a real difference:
- Avoid feeding or handling mice – This can make them more comfortable returning
- Use protective gear when cleaning – Gloves and masks reduce risk when dealing with droppings
- Protect pets properly – Mice can carry fleas and disease, so prevention matters
It’s about reducing risk as well as removing the problem.
If you follow these tips, you can effectively get rid of mice from your home and prevent them from coming back.
Our Final Say!
Dealing with mice is frustrating, especially when it feels like they keep coming back no matter what you try.
From what we’ve seen, the difference between success and ongoing problems usually comes down to how thorough the approach is. Sealing entry points properly, removing food sources, and using the right control methods together—that’s what works.
Quick fixes rarely solve it on their own.
If you act early, stay consistent, and tackle the root cause—not just the symptoms—you can get on top of it and keep your home clear long-term.
