The answer to 'ant control extermination cost in Illinois' is that the cost for professional ant control and extermination can vary widely, but typically ranges from $100 to $500 or more. The exact cost will depend on factors like the size of the infestation, the type of treatment needed, and the location of the home.
For smaller infestations, DIY ant control methods may be an option, but for larger or persistent problems, it's usually best to hire a professional pest control company. They have the expertise and equipment to effectively eliminate ants and prevent them from returning.