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Top-Rated Radon detection and reduction specialists in Cincinnati - Updated Nov 2026

Avatar for Tri-State Radon and Mold, Inc.
Tri-State Radon and Mold, Inc.
4.8(
66
)
Radon Gas - AbatementRadon Gas - Testing

Serving Cincinnati, OH and surrounding areas

In business since 2010

Free estimates

Warranties offered

"Andy from Tristate was a real professional. He was prompt, knowledgeable and the entire analysis was completed on time with an easy to understand report. We will use this company every 2 years to monitor radon. We could not be more pleased with Andy and Home Builder! John Seifert"
Recommended by98%of homeowners
Avatar for Simply Radon, LLC
Simply Radon, LLC
4.8(
11
)
Radon Gas - AbatementRadon Gas - Testing

Serving Cincinnati, OH and surrounding areas

In business since 2008

Free estimates

Credit card accepted

"Our radon system fan needed to be replaced and we were able to get that done the day after I talked to this company. Very quick and courteous service and didn't cost as much as we were anticipating."
Inside
Roof top
Water  tight seal for roof
Outside
Outside

+11

Response time1 day
Recommended by100%of homeowners
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Radon Detection and Reduction FAQs, answered by experts

Mitigation reduces radon levels, protecting your health and complying with safety standards.

Installing a mitigation system reduces radon levels, which can cause lung cancer, providing peace of mind and long-term health benefits. It can also increase your home’s value, as many buyers prefer properties with radon safety measures in place. The investment is relatively low compared to the potential health risks associated with prolonged radon exposure.

Radon is a cancer-causing radioactive gas that poses serious health risks, infiltrating homes through foundation cracks and unnoticed spaces.

The cost to replace a radon fan ranges from $300 to $600 for the fan itself, with installation adding an additional $200 to $500. Overall, the total cost for replacement can range from $500 to $1,100, depending on factors such as the fan model, home size, and local labor rates. If the fan is part of a larger radon mitigation system, the price may be higher.

Ideally, no one will live in a house with elevated radon levels, as prolonged exposure increases the risk of serious health issues like lung cancer. However, homes with radon can be made safe through mitigation systems, such as active soil depressurization. Testing for radon regularly and addressing high levels helps ensure a safe living environment.

The Cincinnati, OH homeowners’ guide to radon detection and reduction services

From average costs to expert advice, get all the answers you need to get your job done.