Rodent Infestation Prevention: How to Deter Mice and Rats

Rodents are always on the lookout for ideal places to live in. As they seek food and warmth, they may find solace within your home. When this happens, you and your family may be at greater risk of health problems. 

As mice and rats leave urine and feces behind, they can contaminate food and cause allergic reactions. Their droppings can also spread disease-causing bacteria and lead to bubonic plague, Salmonellosis, hantavirus, and rat-bite fever. Thankfully, there are effective ways to ward off the spread of rodent-related diseases. Here are strategies for rodent prevention and control:

1. Watch Out for Warning Signs of a Rodent Infestation

Rodents search for shelter, food, and warmth, especially during the fall and winter months. To protect your home from mice and rats, keep an eye out for these signs of a rodent infestation:

  • Chewed wires or materials
  • Rodent droppings, particularly on the floor and in the back of drawers and cabinets
  • Holes in food packaging
  • Urine stains, especially on shelves and in the back of drawers and cabinets
  • Footprints and tail-drags 
  • Nesting materials, including paper, cardboard, insulation, other fibrous materials
  • Scratching in walls

2. Eliminate Potential Sources of Food

Rodents are attracted to homes that can provide them with food. Since many items in the trash can be considered food for mice and rats, keep your trash cans tightly closed and be sure to empty trash frequently. If you have pets, take the dishes up right after feeding them. Instead of placing bird seeds on the ground, keep them in feeders.

Besides food, rodents need water. Eliminating pooled water can serve as a water source for mice and rats, which is why you must address areas of water accumulation in your home as soon as possible to prevent rodent infestation.

3. Get Rid of Potential Nesting Materials

Warmth and shelter are important for rodents. Random objects in your yard can give them what they need to stay safe and comfortable. If you have woodpiles and construction materials, they can be used for cover and shelter by rats and mice. Prevent this from happening by elevating them or storing them away from the exterior walls.

4. Seal up Points of Entry

Vulnerable areas like softened wood or broken walls can serve as entry points for rats and mice into your home. To gain access to a building, mice only need one-fourth inch of a hole, while rats can fit through a half-inch hole. If a hole is too tiny, they can make it bigger by nibbling it with their strong teeth. Because of this, inspect your exterior walls for insect damage and wood rot and repair any holes with rodent-resistant materials. 

5. Keep Your Home Clean

Hard-to-clean areas, like the back of the shelves and under and behind appliances, can hide sources of food for rodents. For this reason, pay special cleaning attention to these spots and prioritise consistent sanitation and cleaning.


Rodent infestation is a common problem among homeowners. Removing sources of food, water, and shelter is the best way to prevent rodent infestation in the home. Besides following these suggestions, another foolproof way to make your house pest-proof is to seek preventive pest control.

Contact Cosmic Pest Control if you need rat control. Our pest control experts are trained and experienced in effectively eradicating mice and rats using scientific, results-based, and eco-friendly solutions. Get a quote today!

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