Bats and Bat Problems


 What they do: Bats in Roofs

  • There are definite advantages to having bats in your roof.  Most roof dwelling bats are insect eaters, and will consume a vast quantity of night flying insects, especially mosquitoes and other harmful pests that cause damage to your garden and to crops.  If the bats are not causing any damage or harm, we urge you to consider leaving them in peace. One bat can eat over 2000 insects per night!
  • Bats are very clean animals and carry no known diseases that can transfer to humans.
  • They are very slow breeding and it takes a long time to build up a colony – they usually only have one baby a year, and that pup has only a 25% chance of surviving to adulthood.
  • Bats are endangered due to a high mortality rate among their young, mainly caused by humans’ lack of understanding and knowledge about their habits.
  • Bats are a protected species (it is illegal to harm them) and their importance in our environment cannot be over-emphasised.

There are many strange myths about bats, most of which are false:

1. Bats are not blind – all have eyes and most can see very well.

2. Bats are very shy of humans and will avoid contact with us at all costs – they will not get tangled in your hair or attack you in any way.

3. Bats are amongst the gentlest wild mammals in the world.

4. There is such a thing as a vampire bat – but it is only found in one place in South America, weighs only 50g and it draws a little blood from the legs of cattle (never from humans!).

What you can do:  Dealing with Bat Droppings & Guano Smell

One of the main complaints is an accumulation of bat droppings or guano in the ceiling

Bat removal and exclusion

Bat Droppings Guano in Roof

area. All you need to do is to send your gardener or maintenance person up with a dustpan, brush and black rubbish bag once or twice a year and have him clear up the droppings.  An easier way is to lay cardboard boxes or black rubbish bags on your ceiling boards underneath the area where the bats are roosting, and once or twice a year, simply remove and replace.

The only time guano will smell is if it is wet, so ensure there are no leaks in your roof.  You can call us if necessary to apply our special Microbial Fogging that is safe for the bats. It neutralizes the odour of bat droppings and removes the smell and any associated bacteria.

What we can do for you: Bat Proofing and Bat Exclusions

  • It is illegal to kill bats and bat exclusion work in South Africa can only take place between May and September of each year.  It is not possible to do bat exclusion outside of these dates, as bats may be breeding and the young trapped inside not yet flying would be killed.
  • Bat Exclusion work entails safely removing the bats from their roosting area (usually inside a roof void) by means of one-way valves, and thereafter we undertake to permanently seal up any obvious & accessible holes in the roof that the bats are currently using as access points.
  • In order to prevent bats from hanging on the eaves, strong pvc mesh or rhino board is placed where the roof meets the wall.  Helium balloons can also be used to “float” under the eaves to discourage the bats from roosting. Other areas that usually need attention are at the gable apices, beneath the ridge tiles and between the broken slats of air vents.
  • The material used is determined by the nature of the hole being sealed and its location.  Eg. pvc mesh, cement, silicon caulking amongst other materials
  • This work usually takes place over 2 – 3 late afternoons with some of the work being conducted after hours (after dusk), as we have to ensure no bats are trapped inside the roof when we do our final exclusion. We return a week later to follow-up and check that there are no bats trapped in the roof.
  • First we send an experienced technician to undertake an assessment of your roof in order to confirm the location and presence of the bats, determine primarily whether or not bat exclusion is possible and the extent of the work that would need to be done. Thereafter a full written report is submitted with our recommendations and quotation.


Need a quote for bats? Have a question for us?

….. then Contact us!