Great Environmental Asbestos Removal
Licensed by The Illinois Department of Public Health
Asbestos Removal Services
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Great Environmental has a history of satisfied customers, but don't take our word for it, take theirs!

We realize that referrals are earned, and our goal is to earn yours! Here are some samples of our typical Customer Comments that we have received.

These are actual reviews from our customers.




"Called John when we had mildew issues found during a home sale inspection.  He helped us resolve the issue quickly and affordably, and our house sale closed on time with a clean re-inspection!" - Andy M., Vancouver WA

"John was very professional and prompt.  Was extremely helpful with our issue and explained what he was doing at each point in time.  Price was much more reasonable than other companies." - Sue B., Plainfield IL

"John came to us with a very high recommendation from many people in the area.  We are presently living in Florida and we needed a company which had the knowledge and experience to do the job without us having to be at our home.  After all the work was completed, I can only say John and his company went well beyond our expectations for a job well done!  We would highly recommend John and Great Environmental in the future!!" - Bill B., Sandwich IL

"Mr Gezik came to my home to inspect for mold. We have an older home that has a basement with a storm door egress. He was honest, and I felt very comfortable with his assesment. He took the time to inspect, and inform me of mold, and it's growing habits. I am very pleased to say the least! How refreshing to find someone who is honest and straight forward with you and not trying to rip you off!. I would recommend this company, very highly in fact. I looked on BBB has an A+ rating! I got lucky and my concerns were put to ease that we do not have a mold problem...but, I certainly will use his buisness in the future if I ever do...or know someone who has a problem with mold or is concerned! Thank you so much!!!" - Jennifer M., Channahon, IL.

"When I found out how bad my asbestos problem was, I panicked. I was ready to hire the first company at whatever cost. The first bid came my way, my jaw dropped! Calls to other places were not much better. Great Environmental was the last call I made, it should have been my first! I talked to John, and a few days later he was at my house evaluating my situation. He was very thorough with his inspection, and gave me a quote. Great Environmental saved me a lot of money, and did an AWESOME job! Even after the job was completed, John was available to answer the few remaining questions I had. I would recommend Great Environmental to anyone and everyone."- Twanzilla


“We have used Great Environmental's ozone services several times to ensure mold removal in properties we have listed for sale as well as under contract to sell. John's results consistently meet required testing standards. In addition, with every project, he goes that extra step and ensures excellence in his results. He is prompt, wonderful to work with, competitively priced and obtails successful results!!” -Bill TeVogt,


"The response to my question was the same day. They were very knowledgeable, friendly and honest with me and left me with peace of mind. I would recommend them to everyone and have no problem with calling them in the future if needed as I fully trust all that they have told me thus far." - J. R. Waukegan, IL


“Based on BBB files, Great Environmental, Inc has a BBB Rating of A+ on a scale from A+ to F.”(Better Business Bureau)


"Of all the contractors I talked to, Great Environmental was the best by far. Very professional throughout the entire process. John explained everything that needed to be done on the front end, and I had no “surprises”. They did what they said they would do, and everything looked great upon completion. For the service they provided and the hassle-free experience, I got a great deal! Highly recommended!"- Evgeni


"After our basement flooded, we pulled out the carpet and found some old asbestos-containing floor tile underneath. I chose Great Environmental to remove these old tiles, because they provided the most clear explanation of the work needed to be done and associated cost. They came up to Wilmette from Joliet just a few days after my request and did a fantastic job. I would definitely use these guys again." - Chip C. Wilmette, IL


"John was very professional and my initial appointment was prompt. He was very thorough in detailing what work would be done and I felt his prices were competitive. When he submitted his proposal he suggested that I might consider getting the tile tested before I commit to any work. We followed his advice and found out the tile was asbestos free or negative. His honestly saved me a lot of money which I was able to apply towards my basement project. I wish everyone was as honest and knowledgeable as John. Highly recommended!!" - John T. LaGrange Park, IL


"Very personable, very professional, quick service." - Mr. S. Aurora, IL


"John Gezik (of Great Environmental) is very personable and great to work with. He communicates well and is responsive to questions and phone calls about the work. We worked into an agreeable timetable for the task of removing siding from our house on the second floor. His workers arrived on time on the scheduled start date and work was completed ahead of schedule. The work was done well and the clean-up of the yard/garden and other areas around the house was superb. Great Environmental used creative thinking in how to get the work done on our house that enabled them to come in with the lowest bid of the 4 companies we took bids from. They earned their VERY GOOD rating." - Don G. Glen Ellyn, IL


"On July 19th I had asbestos tiles removed from my kitchen floor. They were found when I was preparing to get new vinyl flooring. I was very pleased with the communication, knowledge, cleanliness and timeliness of everyone that I dealt with from the company. I called 3 other companies and left a message and none of them called back. I was very excited when I got to talk to John in person!! I would highly recommend them!!" - Laura B. Joliet, IL


"Extremely professional and prompt service. The company was very willing to provide service which accommodated our schedule. The owner is knowledgeable and took time to answer several questions. Would highly recommend Great Environmental to others." - Margaret O. Chicago, IL


“Absolutely Awesome!!!! I was moving back to Illinois to live with my mom. I planned on turning her basement into a mini apt for myself. The basement had the old 9x9 tiles which I knew had asbestos in so they needed to be removed. I found Great Environmental in the phone book and talked with John. He took the time to explain everything to me. We emailed back and for and since I was out of state he came to the house to inspect the area and ended up meeting practically the entire family. They were very impressed and it seemed like they were talking to an old friend, HIRED!. I came home once they started the project and it was gone with great perfection and professionalism. I took before and after pics and what a transformation. CALL TODAY!” (Google Reviews)


“Quick, Thorough & Helpful Having a 125 year old house comes with "charm" and over a decade of home building repairs, including asbestos wrapped steam pipes. John provided an estimate and explained the procedure in great detail. He and his team were responsive and stayed in communication during the entire process. The work site was prepared according to requirements and left pristine. Highly recommend Great Environmental.” –Dawne (Google Reviews)


“I highly recommend John and Great Environmental. I was concerned about having a healthy environment in my home, and was worried that any mold or fungus may be making me sick. I discovered that the service that John at Great Environmental does is NON-TOXIC. I felt very comfortable with John and even trusted him enough to leave my home for a weekend while I was away on business for him to come in. The results are in...NO MOLD any where in my home!! I believe that if anyone wants to make sure their home is safe to live in, you need to call John right away to get on his calendar”. -Trish Kroner


“John is great at what he does! He is very knowledgeable in the field of enviromental safety!” Rick G., Realtor, Coldwell Banker Honig-Bell

“John provides the highest quality service of all the remediation companies out there.” -Gary Monfeli, The Home Inspection Man


“I hired John Gezik, President of Great Environmental to handle mold remediation in our basement. Following home inspections, and after reviewing two other company's proposals, I was very surprised at the high cost associated with mold removal. Having two younger children at home, I was also concerned with the use of chemicals that the other companies were using to eliminate mold from our basement. However, Great Environmental, offered a chemical free alternative that was substantially less then its competitors.
John was my main point of contract throughout the process. John returned my calls and emails promptly, and thoroughly discussed the whole process with me in great detail. John and his crew showed up on time each day and completed the work two days sooner than what his competitors were offering. During the whole process, John's crew were very professional and courteous. After the work was completed, the basement was SPOTLESS! I was thoroughly impressed throughout all phases of the project. If you are considering mold remediation in your home, I would highly recommend Great Environmental.” -Craig B.


“Having a house built in 1959, I'm always concerned about the "Health of my Home". I couldn't imagine living through the Winter breathing the stale air & allowing the mold to continue breeding.


Your totally 'GREEN' process is 100% environmentally friendly and doesn't utilize any chemicals.


Thank you for totally eliminating the pet odors, killing the mold in my attic and making suggestions for overall home health improvement.


You made the process so easy and now I have the peace of mind I didn't believe was even possible!” -Michael H.

“After having our basement infested with asbestos fibers by a careless HVAC contractor, John was there to collect samples for analysis and offered us a quote for a cleanup. His quote was very competitive, and even if we chose to buy equipment and clean up the area ourselves, John was there for us throughout all this, we called him several times, and he always offered free and valuable advice. John is very knowledgeable on the subject and honest. We will hire him to remove some mold in the attic.” Marius D.

“I'm honored to have been part of John's success over the last year. He has done a fabulous job, transforming his small company into the thriving business that is today. John's technical skills and expertise have put him in a class by himself. His focus on solving customer problems is second to none. The value he delivers is unmatched. He has become the "Trusted Advisor" of the industry!” -Chris Condon, Associate, ASA- Alliance for Strategic Advantage


“John Gezik provides an unmatchable passion for his industry. His excitement is evident when quality results are produced. I, as I’m sure many others, trust John that when he says he can improve a living environment, he delivers. John’s years of professional experience and expertise in the asbestos removal and clean air/mold remediation industries make me proud to say that we are professional colleagues.” -Jason R., Founder, www.JayRodChicago.com

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