How Do Mice Get In Upstairs Apartments? How Do They Get In?

Rodent Guide
Written By Rodent Guide

I believe in treating all creatures with respect. My mission is to ensure everyone understands how to protect their home from rodents without using cruel methods.

Mice are a common problem for apartment-dwellers.

They can get into your home through tiny cracks and holes, and before you know it, you’ve got a full-blown infestation on your hands.

This blog post will discuss how mice get into upstairs apartments and what you can do about it.

So, how do mice get in upstairs apartments? Let’s delve into the article and take a look.

how do mice get in upstairs apartments

First, how do mice get UP to your upstairs apartment?

Climb up the brickwork

can climb up brickwork

Mice can climb up the brickwork of buildings to get into upper-level apartments.

This can be a significant problem for residents, either in the apartment or those who have shared space.

Climb up the cabling

Mice are notorious for squeezing into even the tiniest of spaces, and they frequently get inside by crawling through small holes or cracks in the walls.

However, climbing up cabling between floors is one of the most prevalent ways mice gain access to flats.

Not only can mice clime using cables between floors, but they also use cables on the outside of your apartment.

Climb up the internal walls

Mice can climb up the internal walls of buildings to get into apartments on higher floors.

They can do this by using their claws and tail to grip the surface and pull themselves up. This means that if you live in an apartment and there is a mouse problem, it is likely that they are getting in through the walls.

Climb up trees and access the roof

apartment blocks with trees

Mice can easily climb up trees, access the roof of high apartments, and enter through any opening, such as an open window or door.

If you live in a high-rise building, preventing mice from entering your home is essential.

Look outside your apartment for trees that overhang any part of the apartment block. That could be used as a way in!

Carried in by another animal.

Mice can be carried in by other animals, such as rats, raccoons, and cats. These animals can bring the mice into the building through cracks in the walls, ceilings, or plumbing.

Once the mice are in, they can quickly reproduce and create a significant infestation.

Carried in by a human

Mice can be brought into an apartment through luggage. They may nest in clothing or inside the crevices of suitcases. If you are traveling and suspect that mice may have hitched a ride with you, check your belongings for signs of mouse activity.

Look for mouse droppings, chewed fabric, and nests.

If you find evidence of mice, take steps to remove them and prevent them from returning.

Seal up any gaps or holes in your luggage so that mice cannot enter. When you arrive home, scrutinize your luggage before bringing it into your apartment. If possible, leave it in a garage or an outside area until you can thoroughly clean and disinfect it.

How do mice get in upstairs apartments?

Tiny holes in the walls

mouse hole

Mice can get through tiny holes in walls, so it’s essential to seal any cracks or openings you find. You can use a silicone sealant or steel wool to close the gaps.

Gaps near windows and doors

Mice can easily climb through the gaps near windows and doors, so it’s essential to take measures to prevent them from entering your apartment.

You can seal the cracks with caulk or expanding foam or cover the opening with a metal mesh screen.

Gaps for utilities (gas, electric, cable, etc.)

Mice can also get into your apartment through the gaps created by utility entry points, such as gas and electric meters.

Similar to the above, you can prevent this by sealing up the cracks around the meter with caulk or expanding foam. Alternatively, you can install a metal mesh screen to cover the opening.


Mice can often find their way into an apartment through vents. They may use these to access an upstairs apartment if the vent is not properly sealed.

If you have a mouse problem, it is essential to check the vents and seal any existing cracks or holes. You can also use a mesh cover over the vent to prevent mice from getting in.

Gaps in the ceiling

Mice can get into your home through small gaps and holes in the walls and ceilings.

If you have an upstairs apartment, it’s essential to check for any openings that mice could use to enter your home.

Mice can squeeze through tiny spaces, so it’s essential to seal any cracks or holes in your ceiling and walls.

Keep your apartment clean and always store food correctly.

clean apartment

When it comes to storing food, you can do a few things to help stop mice from wanting to get in.

The most important thing is to never leave food out in the open.

Ensure all food is stored in airtight containers, and keep them where mice can’t get to them.

If you have any open food, like cereal or pasta, make sure it’s in a sealed bag.

Another way to help keep mice out is to clean your apartment regularly.

Mice are attracted to places where there is food and clutter. If you keep your apartment clean and free of clutter, it will be less attractive to mice.

Finally, don’t forget to seal any cracks or holes in your walls and floors. This will help keep mice out of your apartment altogether.

If you follow these steps, you should be able to keep mice out of your upstairs apartment.


It’s no mystery that mice can get into your house through small openings, but did you know they can climb up outside your building to reach upper-story apartments?

This article explored why mice might be getting into your apartment.

We have a detailed post you need to read if you want to know how to get rid of mice in your apartment. It is well worth reading if you already have some mice in your apartment.

If you still have a mouse problem and are not confident in dealing with a rodent problem, it’s best to call a professional pest control expert. They will be able to provide an excellent service and will rid get rid of mice in your apartment.

Don’t forget that mice can carry some nasty diseases, so act fast to stay healthy.

Good luck!


About the Rodent Guide

I’m an expert in do-it-yourself rodent control. For more than 20 years, I’ve dedicated my life to helping people live harmoniously alongside these critters by sharing rodent control solutions that are effective and kind.

I believe in treating all creatures with respect. My mission is to ensure everyone understands how to protect their home from rodents without using cruel methods.

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