Whether it’s a rat or a mouse problem, a rodent infestation can cause serious consequences when not addressed immediately and adequately. A thorough home inspection can help you determine the rodents’ activity patterns, why they invade your home and the right product or solution to your rodent infestation.

As you inspect your home to figure out which rodent problem you will be dealing with, as well as how big the infestation is, you can look for these tell-tale signs that indicate mice and rats problems:

  • Fecal Droppings
  • Urine Odours
  • Scampering Noises
  • Gnawed Holes
  • Rub and Gnaw Marks
  • Rodent Nests 
  • Rodent Runways
  • Unusual Pet Behaviour

Still, how can you tell whether these signs are actually from rats or mice and not another type of animal that might have gotten into your home? Here are some explanations to help you:

  1. Fecal Droppings: Once you spot these in your home, it’s a sure sign that either or both rats and mice are a problem. However, these droppings will also tell you which rodent it is, where they are active, and the size of the infestation. Mouse droppings are generally only ¼ inch, while rat droppings can be ½ inch or more significant.
  1. Urine Odours: You can tell rodent urine by its strong, musky, overall unpleasant smell. If you can easily smell the urine odour, that means you might be dealing with a large infestation.
  1. Scampering Noises: Rodents are naturally nocturnal, and so you might hear these scampering noises at night. They present as scratching sounds as rodents run around floors or inside the walls.
  1. Gnawed Holes: Rats typically gnaw on things, but you can tell the size of your problem by the size of the chewed holes. Mice usually create holes the size of a dime, so they’re small and clear-cut. On the other hand, rats make large holes the size of a quarter, with edges roughly torn.
  1. Rub and Gnaw Marks: You can spot oily rub marks where rodents travel along the walls. If these rub marks smear, that means they are fresh. Meanwhile, gnaw marks on wood also indicate a rodent problem. If the tooth marks are around ⅛ inch long, they are a sign of rats as mice generally only create small scratch marks.
  1. Rodent Nests: Mice generally shred paper, cardboard, string, and other materials they can use to build their nest in your home. On the other hand, rats can either burrow deep in the ground or nest above ground in trees, attics, or dense vegetation. 
  1. Rodent Runways: You can spot rodent runways along interior walls, ledges, conduits, building foundations, pipes, tree branches, fence rails, etc. 
  1. Unusual Pet Behaviour: If you have an existing rodent problem, whether it’s mice or rats, you might notice your pets acting unusual, especially when they smell or hear rodents inside the house. Your dogs or cats can look extremely alert or paw at spaces underneath stoves, refrigerators, or low pieces of furniture.


Once you have done a thorough home inspection, saw any of the signs listed above, and determined whether it’s a rat or a mice infestation, it’s time to call a pest control service to address the situation immediately. The earlier you can solve your rodent problem, the less damage they can cause. 

Frontline Pest Services provides general pest control and termite inspections and management services. We are a licensed pest control service in the Sunshine Coast, committed to providing every customer with the proper management of your pest problem with the right program and price. 

We are here to address your problem and give you complete peace of mind. If you need an immediate response to your pest problem, call us at 04 2301 1106 today!