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Rodent control products on a counter: mouse killer, rat trap, and pest repeller

Overview

Rodents aren’t just unwanted house guests, they can damage property, contaminate food, and pose health risks to your family. If you suspect you’ve got rats or mice moving around, acting early can make all the difference. Here’s a step-by-step guide to help you tackle a rodent infestation effectively and keep them from coming back. 

Safety tip: Always wear the appropriate safety equipment (safety glasses, gloves, ear muffs and a mask, for example) and always follow the instructions for the product or equipment. 

Steps

1Identify the signs of rodent activity

Before you can control rodents, you’ll need to confirm they’re actually there. Look out for small dark droppings in cupboards, under sinks, or near skirting boards. Gnawed food packaging, bite marks on wood, and greasy smear marks along walls or floors are also tell-tale signs. You might even hear scratching noises in the walls or ceiling, particularly at night when rodents are most active. Spotting one or more of these signs means it’s time to take action. 
dry goods cereal into an airtight container

2Eliminate their food sources

Rodents are resourceful scavengers, so removing their food supply is a crucial early step. Store dry goods like cereals, pasta, and pet food in airtight containers, and avoid leaving food uncovered on benches. Keep your kitchen tidy by wiping down surfaces regularly and sweeping up crumbs from floors and corners. Compost and rubbish bins, particularly those containing food scraps, should be emptied often to reduce tempting smells that attract pests. This simple routine can go a long way toward making your home less inviting. 
Remove potential rodent food sources

3Block off possible entry points

Rodents can squeeze through surprisingly small gaps, so it’s important to thoroughly inspect your home’s exterior and interior. Pay close attention to the areas around pipes, vents, cables, and even under doors. Use a torch to spot gaps in less visible areas like behind appliances or under the house. For smaller holes, steel wool or gap filler works well. Larger gaps can be covered with wire mesh or secured with metal flashing. By sealing off these entry points, you’re cutting off the main way rodents enter your home.
Rodent proofing supplies including steel wool, expanding foam and mesh

4Set the right type of trap

Once you’ve removed food and blocked off access, traps are your best bet for getting rid of any remaining rodents. Snap traps are affordable and effective but can be messy and should be handled with care. Live traps are a more humane option but require frequent monitoring and responsible release. Electronic traps offer a cleaner solution, delivering a quick and humane kill with easy disposal, though they’re pricier and best suited to indoor use. Place your traps along walls where you’ve seen signs of rodent traffic. Rats tend to follow the same path, so set traps along walls in low-traffic areas like garages or beside the house. Mice are more curious and often explore tighter spaces indoors, such as kitchen cabinets or behind appliances. Use bait like peanut butter or dried fruit to attract them, and be sure to check and reset traps regularly.
Rodent control products including trap and repellents

5Use rodenticides with care if traps don’t work

If traps haven’t solved the problem, rodenticides rat poison may be necessary—but they must be used with caution. Always follow the manufacturer’s instructions closely, and wear gloves when handling bait. Rodenticides should be placed in secure, inaccessible locations where pets and children cannot reach them. If you’re unsure about the safest placement or handling of these products, it’s a good idea to seek professional pest control advice. Remember, these products are designed to be a last resort, not a first step.
Use rodenticides with care if traps don’t work

6Understand the difference between rats and mice

Although they’re both rodents, rats and mice behave very differently and require slightly different control methods. Rats are cautious, prefer to nest outdoors, and tend to avoid new objects. They also require stronger traps and larger portions of bait. Mice, on the other hand, are curious and often nest indoors, making them easier to trap using smaller devices and smaller quantities of bait. Identifying which rodent you’re dealing with will help you tailor your control approach more effectively.
Understand the difference between rats and mice

7Maintain your home to prevent future infestations

Once you’ve controlled the current problem, the final step is prevention. Keep your garden tidy by mowing the lawn regularly and trimming overgrown shrubs that could provide cover. Remove unnecessary clutter from around the house and shed, and store firewood off the ground. Make a habit of inspecting your home periodically for new entry points and sealing up any gaps as they appear. With consistent maintenance, you’ll make it much harder for rodents to return.
Prevent future infestations by setting a rodent trap by a garden bed

8Now that you’ve controlled rodents around your home…

Health & Safety

Please make sure you use all equipment appropriately and safely when following the advice in these D.I.Y. videos. You need to be familiar with how to use equipment safely and follow the instructions that came with the equipment. If you are unsure, you may feel it is safest to consult an expert, such as the manufacturer or an expert Bunnings Team Member.

Grave health hazards are linked to asbestos, which may be in homes built up to 1990. Health hazards may result from exposure to lead-based paints in older materials and copper chromium arsenic (CCA) treated timber. For information on the dangers of asbestos, lead-based paint and CCA treated timber and tips for dealing with these materials contact your local council's Environmental Health Officer.