Whether you are currently residing in Chicago, Aurora, or Naperville Illinois, you can benefit from substance abuse programs that are offered free of charge. Such programs provide addiction treatment services as well as behavioral modification therapy. Family support services in the major cities in Illinois aid applicants in the recovery process as well. While the accommodations at the free rehab centers are not as upscale as the facilities that charge for their services, you will still find that you or a loved one can benefit from their treatment plans. Services at the Salvation Army, rescue missions and state-sponsored facilities can all be accessed for free.