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Learn about our screening process

19 Years In Business

Company Details


  • Mon: 8:00 AM - 5:00 PM
  • Tue: 8:00 AM - 5:00 PM
  • Wed: 8:00 AM - 5:00 PM
  • Thu: 8:00 AM - 5:00 PM
  • Fri: 8:00 AM - 5:00 PM
  • Sat: Closed
  • Sun: Closed
View All Details & Credentials


Service Details

  • Residential Work
  • Commercial Work
  • Small Jobs Welcome

Areas of Expertise

  • Helping people to stop wasting money on "mold only" testing services.
  • IAQ Testing for over 500+ contaminants, not just mold testing !
  • Get answers and solutions, not just test results !
  • Certified Mold Inspector, Certified Mold Remediation Contractor
  • Licensed Asbestos Abatement, Repair, Testing, and Encapsulation
View All Offerings and Cities Served

Cost Information

  • Credit Cards Accepted


41 Verified Reviews
  • 5
  • 4
  • 3
  • 2
  • 1

Highly rated for

  • Quality
  • Value
  • Customer Service
Showing 1-10 of 41 results
5.0 Patricia H. Downers Grove, IL

Excellent! It is a Family owned business. Matt is very personable and explained everything with the whole process. I needed someone right away, and he genuinely seemed like he wanted to help. He fit us in his schedule immediately, even right before Memorial weekend. We got results very quickly, within 2-3 days and we were able to move along closing on our house. I would definitely recommend them as well as the testing for your home.

5.0 Louanne F. Aurora, IL

I don't know what I would have done without John. I am battling the renovation of a 1950s house. With it comes many issues. John has stepped in and stepped up, to help ease my worries and put a plan into place to make the house safe and in tip-top shape. What I really appreciate is that he's not an alarmist. He will give you his honest, professional assessment, even if it means he walks away not making a single dime. But he also listened to my concerns and helped me put a plan in place. They did an extraordinary job, and followed up with appropriate and necessary testing. Could not have found a better person and team for the job! Thank you Great Environmental! Thank you John!! Thank you to his fabulous crew. I'm eternally grateful!!

5.0 Kim O. Braidwood, IL

Is this business even open any more? I've tried calling several times and the phone rings twice and then there is silence. There is an option to contact them on their website, but when I leave my info and click submit, nothing happens. Can anyone recommend another service similar to this one? The mold smell is coming out of my hvac ducts again. I'm in the Joliet area .

5.0 Patricia P. Gary, IN

Everything was done professionally, left for 21/2 hours. I came back to clean return ducts. Did not realize that the other vents did not contain abestos. I remembered all vents, return or otherwise being counted.

5.0 David T. Odell, IL

Recently bought a house with mold in the crawl space. John went above and beyond to get us into our house as soon as possible. Even worked on a Saturday to get us into our new home. Would highly recommend him and his company to everyone with mold issues. Thanks John and crew!!!

5.0 Greg U. Philadelphia, PA

Great service and John is great guy as is his team. There was an unforeseen issue after the first visit and John and his team went way out of their way to make everything right. Highly recommended.

5.0 Elizabeth G. Forest Park, IL

John came out to inspect our old house for asbestos. We thought there might be something there and indeed John found it. He offered a number of solutions, and rather than selling a service just to sell, he spent time to educate and strategics about the best treatment option. We haven't committed to full removal but are grateful for John's expertise and patient outline of options.

5.0 Delton C.

John pointed out that mold spores are always present in all homes. The problem arises at what level and more specifically what type of spores are present. After visual inspection and a number of questions he asked of me, he did not seem overly concerned about my situation. He gave me the option to proceed with the testing for my own peace of mind. I opted to proceed. The results turned out a low mold count. I appreciate Johns honest and candid assessment. I recommend his services.

5.0 Edward K.

work was done quickly and effectively. Calls returned quickly and professionally.

5.0 Brie T.

John was very knowledgeable and helpful. He walked us through the whole process and gave us a clear understanding of all of our options. Would definitely recommend!


Great Environmental, Inc.
IAQ Home Survey
IAQ Home Survey
IAQ Home Survey
IAQ Home Survey
IAQ Home Survey

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Seal of Approval

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  1. Verify Trade License
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  2. Verify Insurance
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  3. Verification of State Business Filings
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