About us

Great Environmental is a family-owned and locally-operated company that brings decades of experience to every project. We provide cost-effective indoor air quality solutions for residences, businesses, commercial properties, and industrial properties.

“Our goal is to provide a custom solution for your specific situation, knowing that having airborne contaminants in your home or business can be a major concern.”

Our professional staff will evaluate your needs on an individual basis, and make honest recommendations to help you solve your problem. “We will make sure that you are not spending money on something you don’t need. We will help you sort through the facts, the pros and cons of each alternative, and help you make the best decision for you.”

You have my word on it! Make it a Great Day! Call us (815) 725–7726


John G. Geziik | President 


Our Credentials

  • Licensed Asbestos Abatement Contractor by the Illinois Department of Public Health
  • All of our Asbestos Workers are licensed by the Illinois Department of Public Health
  • Fully insured, including “Contractor’s Pollution Liability for Asbestos Abatement”
  • Consistently rated “5 stars” by our customers, making them comfortable and confident when referring friends and family.
  • Member of the Indoor Air Quality Association
  • Certified Mold Remediation Contractor
  • Certified Mold Inspector
  • Better Business Bureau “Complaint Free” Award since 2005
  • Decades of experience brought to every project!
Asbestos Abatement
Asbestos Abatement