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How To Get Rid Of Mice In Your Attic?

Have you heard noises coming from the attic? Do you hear scratching sounds at night?

Mice cause damage to property and electrical cables, and they have certain health risks associated with them, as they carry Salmonella, amongst other things.

There are health risks from their urine and feces which can contaminate food and get into the air you breathe.

Could be a rodent up there in the attic. Time to investigate this further to stop the infestation.

Is It Common To Have Mice In The Attic And How Can I Tell If It Is Mice?

It is common to have mice in your attic. Mice are away from the danger of predators and humans up in the attic, there will be warmth from the heat rising, and items to use for nesting.

Is there insulation in the attic? This will make comfy bedding for a mouse. Like clutter, insulation can provide hiding places for a mouse, so it is worth getting the insulation checked through.


You might spot randomly spread mouse droppings in the attic. Be cautious! Mice can carry 30 odd different types of diseases, and their feces and urine help to spread it. Careful removal is required. Besides diseases, mice can also bring into the home ticks, fleas, other insects and bacteria.

House mouse droppings can be either dry or moist. Whichever you find, make it your business to dispose of it safely.


Mice and rats will chew through paper, cardboard, and furniture in order to make nests. If you spot any chewed items, or the nests themselves, it could be signs you have mice in the attic.

The Smell of Urine

You may sense the strong smell of urine in the attic; more signs of mice.

Grease Marks

You might spot grease marks along the walls in the attic, about half an inch from the floor. This is a good way to identify a possible rodent infestation.

When mice move around in a house they will run along the walls, and the oil from their fur leaves a visible mark. These marks are signs of mice or rats.


You can often identify mice by the sounds they make at night.

Quite often this can be the first clue to infestations of mice. Sounds coming from the attic may be mice scratching and making holes in things. These pests can create a lot of damage in the attic and around the house.

The noise might stop during the day as mice are mostly nocturnal. They prefer it when predators are not around and will sleep during the day.

What To Do If You Hear Mice In The Attic?

Now that you have identified the culprit in the attic, it is time to act fast.

Start by decluttering the attic. Remove any unwanted items that can provide nesting material and hiding places for these pests.

Mice may come across Christmas treats for the holiday season hidden in the attic, which will provide the mice with food. They will need to be removed and stored, preferably in metal containers, elsewhere in the home.

What Type of Trap Should I Use?

There are many different mouse traps to buy, poisons, and bait traps. Click here for more information

With a mouse infestation in the attic, you can bait to your heart’s content, as there should not be any children or pets venturing up there and being put in danger.

We recommend you use snap traps, or for a more humane approach, live bait traps, for getting rid of mice. Do not bait the snap traps with cheese, as it goes off too quickly. The rodents much prefer peanut butter or sunflower seeds.

We recommend the Press N Set bait trap, as it is easy to use, does not go off accidentally unless it has caught a mouse, and does not go off if you put it down on the floor.

Once you have baited and set the trap, place it against a wall, with the jaw side facing the wall.

How to Release a Mouse From a Bait Trap?

It is easier just to throw away the traps and the mice together, but if you want to reuse it, lift the snap wire up over the garbage bin and drop the mouse in.

Make sure the mouse is dead, as it could still be alive if only a leg for instance was trapped.

Bait the snap trap again and place it against a wall where the mice run along.

A Professional Pest Control Company

If you feel you are losing the battle or do not want to deal with, rodents you should call in the services of a professional to deal with infestations and get rid of mice in your attic for you.

Contact a company with a good reputation and good feedback reviews. You could ask friends or neighbors for contact numbers to call.

Ask if they offer a service that is licensed by the state and if they are members of a state or national association.

The service provided will include a plan of action, which will involve poisons or snap bait traps used in the home. Check with the professional exterminator to ask what will be used.

Find out before they start if they will be responsible for the removal of the rodents. This is quite an important question if you are squeamish or detest mice.

You could ask the pest control company to come back and check for rodents after the infestation has gone, just to keep an eye on future rodent infestations. New entry points may be found in the home by the company.

These extra visits will put your mind at rest, so we think it is well worth doing.

How Long Does It Take For An Exterminator To Get Rid Of Mice In The Home Or Business?

The exterminator will come to the home or business and assess the infestation.

They will be able to get an idea of the severity of the situation.

They may well be able to give you a rough idea of how long it is going to take. It all depends on the size of the infestation.

You are probably looking at 1 – 3 months in total for the extermination to be complete, and the need for professional services to end.

Baits need to be reset, dead mice removed, and it takes a little patience. Hang in there and before you know it the mice will be gone.

Do Mice Leave The Attic During The Day?

Mice in attics often go unnoticed. Check the attic regularly for evidence of mice and other rodents.

Mice are very timid and always alert, and they will sleep during the day in the attic, only leaving gaps in walls to search for food and water in the home at night.

What Can I Spray In The Attic To Get Rid Of Mice?

There are many different sprays available to buy to spray in the attic to get rid of mice. You could try essential oils, such as mixing peppermint oil in a bottle with water and spraying around the loft.

This can also be bought as a ready-made product. Click here for more information

This type of pest control will mean regular applications in the loft.

You could try an ultrasound repellent that emits sounds that scare away rodents. They can be bought and powered by a battery, so no need to worry about electrical wiring. This also means it can be placed anywhere in the home or attic.

This product is eco-friendly, no chemicals or sprays are needed, and is therefore safe around the home for pets and children. Humans are unable to hear the noise given off by them.

Top Tips On How To Repel Mice:

  • Check the exterior of the property, look at gaps in the eaves, missing brickwork, and check the whole of the roof. Once you identify entry points, seal them with steel wool and caulk. Do this regularly, as a well-maintained property is less likely to have mice than a run-down property.
  • Cover air vents with a wire mesh so that air can still circulate in the property. You should never completely seal or close up vents.
  • Check holes around pipes on the property, as these make easy entry points for mice and other rodents. Rats and mice can get through tiny gaps and holes. Sealing them will help prevent an infestation.
  • Check air conditioner connections for cracks and gaps and seal them off.
  • Sealing cracks and gaps will close up entry points to the home. Check around doors and windows for poor fitting and for any holes.
  • The rodents can access the roof and attics via trees. Trim the trees back to prevent them from getting onto the roof and into the attic. Vegetation provides hiding places outside for rodents too, so keep it trimmed also.

Food Sources

If you want to get rid of mice and any other possible rodents or insects in the home, you must remove all possible food sources.

As the weather gets colder, a rodent will be looking for a cozy home and food.

Here are a few tips to help keep them out.

  • Keep food put away, place food items in airtight containers.
  • Clear up food crumbs from the kitchen surfaces immediately.
  • Keep floors swept and crumb-free.
  • Do not leave piles of dirty dishes in the sink; a mouse only needs 3 grams of food a day, so tiny morsels on the plate would be welcome food to mice.
  • Keep garbage bins shut, empty often, and clean regularly in the home.
  • Keep garbage bins in the yard completely shut and check them for damage.
  • Don’t store grains and seeds in plastic containers in the shed.
  • Keep Christmas goodies out of the attic.
  • Check the children’s rooms for candy left lying around.
  • Try not to leave a bowl of meaty dog food out for too long. The mice and insects may get there before the dog does.

Home Remedies To Get Rid Of Mice

Mice have very sensitive noses. Try some of these essential oils to help repel a rodent problem.

Peppermint Oil

Peppermint oil is known to repel mice, as it has a strong smell that irritates rodents noses.

You can grow peppermint indoors and make up a spray bottle to spray around the home.

Do not spray near snap traps etc. if you are trying to catch the mice.

Clove Oil

Soak some cotton balls with clove oil and place them around the attic. This will repel mice, as they really do not like the smell at all.

How To Get Rid Of Mice In Your Attic With Sticky Traps?

These traps are not very pleasant. As the mouse or rodent steps on it to eat the bait it becomes stuck, dying of starvation and exhaustion.

If you are vigilant you can release the mouse from the traps by adding vegetable oil to the body of the mouse, so that the grease helps it to get free.

A mouse should be released at least 1 mile from the home, otherwise it could return. Find the mouse grasslands or a forest to call home.

How To Get Rid Of Mice In Your Attic With Live Catch Traps?

This pest control method is very humane.

They are safe to use around animals and children, as there is no chemicals or poison involved. This live bait trap works by catching the mouse alive inside.

Bait like peanut butter or chocolate is placed inside one end. The entrance works like a see-saw: as the mouse gets off at the bait end, the other end lifts up, trapping the mouse unharmed inside.

You can then take the whole bait box for a mile drive and release the mouse. Some of the traps can hold 4 mice at a time.

Do Mice Bite?

Mice may pass over you if you are in bed. If you have been eating in the bed, they might pick up a few crumbs and run away. If they bite it, will be very rare for them to do so.

Rats are more likely to bite you than mice.

The moral of the story is do not eat in bed!

And Finally,

We hope you now know how to get rid of mice in your attic.

There are various methods to try for getting rid of rodents, and prices vary. You must remember to be persistent.

If you have any questions, please do not hesitate to drop us an email. We do our best to respond as quickly as possible.

Good luck!

Ronald has 25 years of pest control experience under his belt. He scrutinizes each pest control method, product and process. 

Read more here.

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