Dave Stipe

 Tags: Animal Removal

We don’t typically see bats out and about very often. They can usually only be spotted at dusk, dawn or during the night, therefore, sightings are few and far between. But make no mistake, Ontario has a huge and diverse bat population.

colony of bats in atticBats aren’t animals you want to have in your home. Bat infestations are scary ordeals, and along with several dangers to your home and health, an unexpected bat in the home can give anyone a fright. 

There are plenty of ways to protect your home against unwanted animals, but sometimes taking preventative measures isn’t enough to hold back Mother Nature. Bats looking for warm and dry places to roost for the winter are drawn to attics, chimneys, or the walls. 

There’s always a chance that bats roosting in your attic will multiply. Male bats roost outside, so any bat in your home would be female with a high chance of producing baby bats, depending on the season. While bats aren’t exactly the scary vampire creatures of folklore, their presence in your home can cause some serious negative effects. Here are seven bat infestation dangers to your home and your health.


Interrupted Sleep

The benefits of a good night’s sleep are endless and there’s always new scientific evidence proving how important it is to sleep well. Bats are nocturnal creatures, so their fluttering and squeaking could keep you up at night.

Bats will use a single entry and exit point and if this happens to be located within earshot, your in for some long nights and early mornings. Colonies contain dozens of bats, and finding colonies of over 100 is very common. So, it stands to reason that they may make a little noise as they come and go.



You may have heard that bat guano can be detrimental to your health. This fact is not to be taken lightly or dismissed as one of those old wives tales that in actuality never happens. Bat droppings, also known as guano, carry the fungus Histoplasma capsulatum. If the bat guano dries up and becomes air born and is inhaled, it will give you a lung infection called histoplasmosis. If histoplasmosis spreads beyond the lungs and into the whole body, it can be fatal. There are several cases of this every year.

Bats use the same entry and exit point and as such you should be able to find an accumulation of guano near this area. If you come across this, please contact a wildlife removal professional immediately.

Please see picture below to see what bat guano looks like:

bat guano outside a building



Next to raccoons, bats are the second largest rabies exposure threats to humans and our pets. The virus is transmitted through the bite of an infected bat, however you can also be exposed to rabies through contact with bat fur, guano, blood, or urine.

Having said all this, no need to stay up at night fretting about rabies. Bat bites in humans are exceedingly rare, but if you suspect you have a bat issue, do not take any chances obviously. 


Water Contamination

Depending on the layout of your home and the place where bats have decided to roost, there is a chance that the bat guano or urine can contaminate your water. Especially for those with outdoor water collection, guano can pose a serious health risk.

Avoid water sources that have been lying stagnant and exposed to wildlife activity. As with most things in life, a little common sense goes a long way.


Slip and Fall Hazard

Bat infestation dangers don’t stop at contact with the animals themselves. Bat urine can collect on the floor and make it difficult to keep your balance. If you’re going to inspect a potential bat infestation, take a moment to direct your eyes to the floor—you’ll be grateful to avoid a potentially dangerous slip.


Climate control

attic damageBats are notorious for making their way into attics—a favourite starting place to insulate for many homeowners. Bats in the attic can leave droppings in your insulation and create openings that let the heat escape. It can be expensive to clear out the contaminated insulation and can cost even more to replace support beams or flooring.

Heating and cooling a home is amongst one of our biggest ongoing controllable expenses. Therefore, anything we can do to help keep these costs down is crucial to our pocketbooks. Keeping wildlife out of our attics and walls is an easy place to start.

Because of the potential harm a bat infestation can cause to your home and your wallet, you don’t want to ignore the situation.






External Damage

Bats can make their way into your home through openings in the roof, chimneys, vents, or soffits. This damage can be a serious danger to the integrity of your home and end up costing you plenty of money in repairs. Bats can chew into walls and leave urine stains on the interior or exterior of your home.

Bats roosting in your home is not a problem you want to ignore. Take the time to inform yourself with the dangers and seek help from the experts to avoid any harm to your health and home.

If you suspect you have a bat colony living in your walls or attic, contact a wildlife removal expert immediately. Bat removal should only be completed by professionals. .



Dave Stipe

Dave is an All Wildlife Removal Inc. technician who has an Honours degree in Sociology from Bishops University, and a teaching degree from Charles Sturt University. Dave played football for 21 years, including a stint in the CFL with the Hamilton Tiger-Cats. He is also a big Blue Jays fan and an Olympic Ping Pong hopeful.