Why do pests make a home in your home? It's because they find conditions that they like. For example, Cucarachas can come and live in your house because they find scraps of food lying about. To make sure they don't live in your home anymore, it's important to create conditions they don't like!
There are many ways to control pests, and while the more traditional methods involve blitzing the pests with unspeakably toxic poisons, there are other ways which can be more humane and use naturally derived pesticides.
Whether it's in your apartment or house or garden, it's important to understand why the infestation has happened in the first place. For example, damp wood boards can invite wood worms to live in your home. It's important to deal with such problems to avoid a re-infestation.
There are pest-control companies that can help you get rid of the pests as well as solve any root problem that may be causing the infestation. You can find pest control companies locally by looking in the yellow pages or better still, looking online.
If you can't solve the problem yourself and the problem keeps recurring, this is probably because the root cause is not being addressed. Protect your apartment and garden from future infestation by hiring a professional pest control company.