1. Rats are very flexible and good at climbing, and can crawl quickly on trees or wires. Rats will crawl down electrical wires into your home. Hard to guard against.
2. Buckets and sewer pipes are one of the ways for rats to enter the house. The floor is not high and the sewer pipes are relatively old, which will become a dirty nest for rats. Rats are natural swimmers and can go directly indoors through sewers, usually at night.
3. When installing an air conditioner, a pipe opening is usually made in the outer wall. This opening is not closed all year round, allowing rats to take advantage of it. Therefore, after installing the pipe, be sure to seal the hole. Do not use soft pinched newspapers, but seal it with cement or glue.
Methods to prevent mice from entering the house:
1. Close the door.
Close the door to prevent mice from entering. Rats are most active at night, so it's best not to leave the door open overnight. If you like to leave your doors open in the summer to let the breeze in, install a screen door to keep mice out.
2. Seal the windows.
Rice are good at crawling and can enter a house through windows without any difficulty, especially second-floor windows. Always keep windows closed or have screens installed. Window screens are easily damaged after being used for a period of time. Rusty holes or cracks in the screen can allow mice to enter. If some windows cannot be closed tightly, or there is a gap between the window and the frame, steel wool or wire mesh can be used to block the gap.
3. Check the bottom of the house.
Go around the outside of your home and check the walls for cracks or holes that could allow mice to get inside. Plug any holes found larger than 6.4 mm. It's best to use a sturdy patching material, such as sheet metal, steel mesh, or concrete mortar.
Inspect the wall that separates the garage from the rest of the house. Because garage doors are more difficult to seal than other smaller doors, mice sometimes gain entry through that area and later find their way into the main house.
4. Block cable outlets, drains, vents and chimneys.
If the cable outlet is large enough for mice to fit through, they can easily follow the cable into the house. They can also enter the house through manholes designed for water pipes and drains, or enter vents and chimneys. Stuff stainless steel velor into small holes around water pipes and cables, then seal the holes with caulking material.
Steel wool forms a rough, frictional barrier that keeps mice out, and can be easily shredded with scissors to fit into smaller areas. Install screens to keep rats out of pipes, vents and chimneys.