House lizards are well known for entering homes through holes or cracks. If you own a house and can visually see any cracks or holes around the perimeter of your house, so can the geckos. They are very intelligent when it comes to finding entrances to our homes. Once inside, if they find a new food source, and they often do, they aren't going to leave on their own. You will need to take some form of action in order to resolve the problem.
These little creatures can easily enter cracks in the foundation or holes in the side of your house. Even if the space seems too small, it's really not. House lizards can also enter your home through the cracks around your windows. If you see one on the wall or ceiling, in close proximity to one of your windows, you should inspect the area around the window very closely.
If you don't take the time to seal or patch any holes, and allow them to live in your home, the problem won't go away. Source: Facebook
You will never see Wall Gecko in your house again if you do this:
Simply mix SALT and BLENDED GALIC and pour at all corners of your room.