Anyone who has contended with a rodent infestation in their home will know that rats and mice are incredibly adept at finding their way into attics and wall cavities. Once they get into these areas, they can be hard to dislodge. It’s particularly frustrating to hear them scratching and scurrying about behind your walls and in your ceiling without an obvious way of getting to them. To deal with the problem effectively, you need to drive the rodents from their hiding place and out into the open.
The first thing you should do is ensure no more rats can get in. If you have rats in your walls and ceiling, there must be an entry point somewhere. Search the perimeter of your home for any holes or gaps that rats could use. Seal any breaches you come across, but make sure you don’t trap the rats completely; if you do, you’re going to have to deal with dead rodents inside your walls.
Once you’ve identified all the gaps rats could use to get into your walls, you can lay down traps and set up bait stations to ensnare the rodents as they make their way in or out. These are effective methods for dealing with more minor infestations.
Rats won’t usually emerge from their hiding spots during the day. You might be able to detect activity behind your walls from the noise they make, but rats are unlikely to come out until night. When they do come out from behind the walls, it’s mostly to scavenge for food. If they can’t find any in your home, they will have to search elsewhere. Make sure you tidy up after yourself and your pets thoroughly; it might be worth double-bagging your rubbish before you throw it in the bin,
For larger infestations, you may need a professional pest control contractor to clear it out for you.