If you hire this pro, you’re covered by a money-back guarantee. Learn more
If you hire this pro, you’re covered by a money-back guarantee. Learn more
About
We are a family operated small business who prides itself on timelyness, exceptional customer service and professionalism.
Meeting new people and educating them on the risks of radon exposure and why you should test and mitigate!
Overview
Hired 12 times
Serves Wayne, IL
Background checked
5 employees
11 years in business
Business hours
Sun8:00 am - 7:00 pmMon8:00 am - 7:00 pm
Payment methods
This pro accepts payments via Cash, Check, Credit card, PayPal, Venmo, and Zelle.
Customers rated this pro highly for responsiveness, professionalism, and work quality.
Exceptional 5.0
51 reviews
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Your trust means everything to us. Learn about our review guidelines.
Read reviews that mention:
Mo R.
Sep 22, 2026
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Hired on Thumbtack
We had a great experience with this company for our radonmitigation system. Before the installation, our radon readings were above 2 pCi/L most of the time, generally in the 2-4 range, with some readings going as high as 8 pCi/L.
Mr. Steve was very thorough in explaining the project and answered all of our questions. The installation team showed up on time, was professional, and did a great job. Once they were finished, they walked us through everything they had done and explained how the system works.
It has now been about two months since the installation, and we are extremely happy with the results. Our readings are now below 1 pCi/L most of the time, with only an occasional reading above 1, and they have consistently stayed below 2 pCi/L. The improvement has been significant and gives us a lot of confidence in the system.
Very happy with the quality of the work, professionalism, and most importantly, the results. Highly recommend!
Radon Mitigation
Mandar P.
Oct 19, 2017
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Hired on Thumbtack
My radon system had a very minor issue which was solved super efficiently and smartly by them. Great job, will surely call them when needed for any mitigation issues.
Radon Mitigation
Tim W.
Apr 13, 2018
•
Hired on Thumbtack
Steve was super responsive in our need for a fast radon test while purchasing our home and providing results back quickly. His services are affordable and is very easy to work with. Thanks Steve!
Details: Buying, selling, or leasing property • 3,000 - 4,000 sq ft • 2001 - Present • No, I do not have a Radon Mitigation System in my property • Residential
Radon Testing
Don N.
May 2, 2026
•
Hired on Thumbtack
I would certainly recommend Steve and his team to others.
Radon Mitigation
Bradley S.
Jan 1, 2018
Steve at TestITChicago was on time, informative, and the follow up with the report was timely and professional. The ease of scheduling and value of the work was great as well. Thanks for taking care of my radon readings! Highly recommend.
Credentials
Background Check
Steve Kostro
FAQs
What should the customer know about your pricing (e.g., discounts, fees)?
$195 per residential test, does not matter how many monitors needed.
What is your typical process for working with a new customer?
schedule srop off time, pick up time and e-mail report.
What education and/or training do you have that relates to your work?
licensed through the state of Illinois + continued education, member of CANSAR, Radonleaders.org, St. Charles Chamber, Fox Valley Realtor Assoc, Midwest AARST