There are several ways that you can prevent rats from entering your house. First, make sure that your windows and doors are tightly sealed. This will keep the rats out, and they will not be able to find food or shelter inside.

1. Use Traps: Trap rats by setting out a trap filled with food and water. Make sure the trap is set in an area where rats are frequent. The trap will kill the rats and release their bodies nearby so you can take them away. You can easily find swift mice & rat control services in Sydney from many online sites.

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2. Poison: Rat poison is a safe and effective way to get rid of rats. You can buy rat poison in stores or online. To use it, mix the poison with water and pour it into a spray bottle. 

3. Repellents: Another way to get rid of rats is to use repellents. There are many different types of repellents, so find one that works best for you. Sprinkle the repellent around areas where you see rats.

There are many ways your house can get rid of rats, but the most important thing is to prevent them from coming in the first place. Keep your garbage securely closed and covered. This will keep food out of the reach of rats and other animals, and it will make it harder for them to build nests.