The answer to 'pest extermination cost in Illinois' is that the cost can vary widely depending on several factors. In general, pest control services in Illinois can range from around $100 to $500 or more per treatment, with the average cost typically falling between $200 to $400.
The exact cost will depend on the size of your home, the type of pest problem, the extent of the infestation, the type of treatment needed, and the experience level of the pest control company. Larger homes, more severe infestations, and more complex treatments will generally cost more. Additionally, the location within Illinois can impact pricing, with services in urban areas typically being more expensive than rural areas.