If you’ve started hearing scratching, tapping or movement in your walls at night, it’s usually a sign that something’s living where it shouldn’t be.
I get calls like this all the time across Peterborough — and more often than not, it turns out to be rodents. The noises can start off faint, then gradually get louder as the problem grows.
The important thing is not to ignore it. Whatever’s making that noise is active, and the longer it’s left, the worse it can get.
In this post, I’ll break down what those sounds usually mean, what could be causing them, and what to do next.
What Causes Scratching Noises in Walls?
There are a few different pests that can cause this, but some are far more common than others.
Rats
Rats are one of the most common causes of scratching in walls, especially at night.
They tend to:
- Move around after dark
- Gnaw on wood, wires and pipework
- Travel through wall cavities and loft spaces
If the noise sounds heavier or more deliberate, there’s a good chance you’re dealing with rats.
Mice
Mice are smaller but much more active.
You might notice:
- Faster, lighter scratching sounds
- Movement across ceilings as well as walls
- Noises that seem constant rather than occasional
Because they reproduce quickly, a small issue can turn into a bigger one quite fast.
Squirrels (Usually in Lofts)
Squirrels are more active during the day, but if they’ve gained access to your loft, you may still hear movement early morning or evening.
They tend to be louder and more erratic than rodents.
Other Possibilities
Less commonly, scratching noises can be caused by:
- Birds trapped in cavities
- Insects (though usually much quieter)
But in most homes, especially in built-up areas, it’s typically rats or mice.
Why You Hear It More at Night
Most pests that get into homes are nocturnal. That means they sleep during the day and become active at night — which is why the noise often starts when you’re trying to sleep.
It can sound louder at night too, simply because everything else is quiet.
Signs It’s More Than Just Noise
If you’re hearing scratching, it’s worth checking for other signs as well:
- Droppings around skirting boards or cupboards
- Gnaw marks on wood or cables
- Greasy marks along walls (from rodent fur)
- Unusual smells
If you’re seeing any of these alongside the noise, it’s almost certainly a pest issue that needs dealing with.
Why You Shouldn’t Ignore It
It might be tempting to leave it and hope it goes away, but in most cases, it won’t.
Rodents in particular can:
- Damage wiring (which can become a fire risk)
- Contaminate food and surfaces
- Spread bacteria and disease
- Breed quickly, making the problem worse
The earlier it’s dealt with, the easier it is to control.
How I Deal With It Properly
When I come out to a property with this kind of issue, I don’t just treat the symptoms — I find the source.
Inspection First
I start by identifying exactly what’s causing the noise and where they’re getting in. There’s no guesswork — it’s about finding the entry points and activity areas.
Targeted Treatment
Once I know what I’m dealing with, I use the right treatment for the specific pest. That might involve baiting, trapping, or proofing work depending on the situation.
Blocking Entry Points
One of the most important steps is stopping the problem from happening again. I’ll advise on — and where needed carry out — sealing up access points.
Ongoing Advice
I’ll also let you know what to look out for and how to reduce the chances of pests returning in the future.
Don’t Put Up With the Noise
If you’re hearing scratching in your walls at night, it’s usually a sign something has already settled in.
I deal with rat and mouse problems across Peterborough and surrounding areas, and I focus on getting to the root of the issue — not just a temporary fix.
If you’re unsure what you’re hearing, you can get in touch and I’ll help you figure it out.
Or head over to the contact page and I’ll arrange a visit.
Frequently Asked Questions
What does scratching in the walls usually mean?
In most cases, it’s rodents like rats or mice moving through wall cavities or loft spaces.
Is it dangerous to have rodents in the walls?
It can be. They can damage wiring, spread bacteria, and contaminate areas of your home.
Will the noise go away on its own?
Usually not. If anything, it tends to get worse as the problem grows.
How quickly should I act?
As soon as possible. The earlier it’s dealt with, the easier it is to control.
Can I get rid of rats or mice myself?
You might reduce activity, but without dealing with entry points and nesting areas, the problem often comes back.
Do you cover Peterborough and nearby areas?
Yes — I cover Peterborough and surrounding locations.