Google reviewers rate Certified Radon of Kansas City 4.9 out of 5 based on 542 reviews, with the owner responding to 70% of feedback. Customers frequently praise the company for punctual scheduling, professional installation of radon mitigation systems, and clear communication regarding pricing. Positive notes often highlight quick turnaround times and the effectiveness of the services in lowering radon levels. However, some lower-rated reviews criticize the business for missed appointments, delayed quote follow-ups, and occasional issues with workmanship quality or office staff communication.
Data from Google, last updated October 26, 2026.
Reviews from Google, shown as published (original wording, unedited).
Jeremy got our radon mitigation appointment scheduled very quickly and in no time our system was installed in a professional and friendly manner. Top notch service, fair price, will recommend to all my neighbors.
Great work, super fast turn around, and the price was right. Thanks a ton for getting the system installed thru the attic, hope the days get a bit cooler soon for you all. Have a great day and thanks again.
Very polite at my house clean, put everything back. Great guys . Thank you so much.😃😃😃😃😃five stars
Excellent service!
Best Randon Company ever or company for that matter. Customer care was off the chart on how they will work to get your randon levels where they need to be. Jeremy and his crew go above and beyond. Super nice, answers your calls fast and loves animals which is awesome. Highly recommend! Wish everyone else would care and work this hard for you.
The fan for our radon mitigation system began rattling after last night's storm. I called Certified Radon of Kansas City and a service man explained the process of making an appointment and quoted me a price. I followed his directions and was called to schedule an appointment for tomorrow. This afternoon he contacted me and said he was in our area and could do the job today. He came promptly and had installed the new fan in a matter of minutes! This company is tops in my book!
Thank you so much for your wonderful review, Joann! We're thrilled to hear you had a great experience with our team. If you need anything else, just let us know!
We did a free quote and a guy came out but its been 2 weeks and we NEVER got an estimate back. What a complete waste of time!
Thank you for your feedback, and we sincerely apologize for the frustration. After looking into the situation, it appears there may have been an issue with the estimate being finalized and sent after the onsite visit, which is not the experience we aim to provide. We have attempted to reach out multiple times by phone and voicemail to resolve the matter and make things right, but unfortunately we have not been able to connect. We truly value every customer’s time and understand how disappointing it can be to wait for information that should have been delivered promptly. We would still welcome the opportunity to speak with you directly, answer any questions, and provide the estimate if you are still interested.
Quote was 50% more than the other highly rated Radon Mitigation companies. Consequently, we didn't select. I recommend calling around for other bids for your job.
Thank you for taking the time to share your feedback. We understand that comparing estimates from multiple companies is an important part of the decision process. Our proposal was designed specifically around the radon levels and property details that were provided to us, with the goal of creating a more effective and efficient long-term mitigation solution rather than simply offering the lowest-cost option. After receiving your review, we attempted to reach out several times by phone, voicemail, and email to further explain the differences in the proposed system and answer any questions, but unfortunately we were unable to connect. We respect your decision and always encourage homeowners to gather multiple estimates so they can make the choice that best fits their needs and budget. We wish you the best moving forward and appreciate the opportunity to provide a consultation.
Can you tell by my attached graph pic when they installed the radon mitigation system? Our house tested in the acceptable range when we bought it years ago but after reading an article that radon can increase seasonally, we decided to buy and try a disposable mail-in test. The results were in the mid 20’s!! (Above 4 is bad). So as someone that likes to do my own research and often DIY small projects, I bought a device to continuously test radon levels and the results confirmed we needed to address it. I did more online research leading me to reach out to 2 companies, CERTIFIED Radon of KC being one of them and they were quick to email an estimate (similar price and description to the other estimate I eventually received). They were willing to come in person to review my basement and describe the project, on time for the work, courteous, clean, and also did their own follow up test to confirm their work fixed the issue (we are now well below the 4.0 level). The attached image is from my personal device.
Thank you so much for your detailed review, Brian! We’re thrilled to hear that our radon mitigation system made such a difference in your home. If you need anything else, feel free to reach out!
The guys were in, performed the work and explained the system. I didn't know anything about radon before this, but their review of the system exceeded my expectations.
Thank you, M Mend! We're glad to hear you had a great experience and found our team helpful in explaining the radon mitigation system.