"Dawn was professional and extremely nice. She arrived at our home on time and returned 2 days later to read the test results. She immediately forwarded these results to us for our records. I highly recommend Radon Tec."

"Prompt replies and timely work. Very cooperative and easy to work with. Results available same day test ended."

"Mat is the inspector realtors hate... tongue-in-cheek. He is extremely knowledgeable, has great attention to detail, and is very honest. If there is something wrong with the property, you better believe he's going to find it. He takes the time and does a thorough job. I highly recommend him!"

"This is a high quality mold/fungi/fungus testing company, with excellent customer service and follow-up. The phones were picked up on the first call each time, and arranging for an appointment was very easy. They arrived on time, were efficient, informing, and friendly in their work, and brought commercial equipment to perform the test samples. The follow up phone call and email on the test results was good, and they provided a potential remediation plan for us to follow on the test results. The third party lab utilized by them had easy to understand numbers, graphs, and descriptions of what was tested. We will do business with Gardner Services again in the near future, and will recommend them to others."

"Work went smoothly: (1) Old sump pump was replaced with new battery backup sump pump system. USW extended sump pump warranty to 4 years from manufacturer's 3 years. Sump pump has been working fine since installation. It is much quieter than old sump pump. At my request, technician installed new cover over sump pit. (2) Four cracks in foundation were sealed by epoxy/ urethane injection. We have had considerable rain on two occasions since the injection with no evidence of water or moisture in former crack areas."

"I rarely post reviews. Sidad came out a day after I called about our 9.5 radon level to inspect and tell us about the installation route of his mitigation system in our basement. He returned the next morning, installed the system & our 3rd party test report came back at 0.3 which she said was super low. I can not say enough about Clue Radon and his excellent job! And on top of that he is honest and very kind! BTW I first called 3 well known Radon Companies in Lake and Dupage County and they all said I'd be looking at a 2-3 week wait because they are that busy. Call Clue Radon:)"

"Completely satisfied. Would certainly recommend them for Radon mitigation work. They worked efficiently, were neat and clean and the price was quite reasonable."

"He was very good! He discussed with the seller all of what he found in his inspection and was very professional. I will highly recommend him. He's a great guy!"

"The techs were very professional and thorough. They sealed the sump and installed a Radon mitigation system."

"Technician explained everything about Radon in terms we could totally understand. He was patient, polite, totally knowledgeable and professional."