Top-rated radon gas testers.

Get matched with top radon gas testers in Dayton, OH

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Radon gas testers in Dayton

Avatar for Simply Radon, LLC
Simply Radon, LLC
4.8(
11
)

Serving Dayton, OH and surrounding areas

In business since 2008

Free estimates

Credit card accepted

"Simply Radon was great. They were very responsive, professional and friendly. I bought a radon detector to test our basement and got readings well over 4 pCi/L. After Simply Radon installed a mitigation system it dropped to below 1 pCi/L. I strongly recommend them for anyone considering radon mitigation."
Inside
Roof top
Water  tight seal for roof
Outside
Outside

+11

Response time1 day
Recommended by100%of homeowners
A1 Property Pros LLC
4.6(
11
)

Serving Dayton, OH and surrounding areas

In business since 2024

Free estimates

Credit card accepted

"Wayne from A1 Property Pros did an outstanding job of mitigating my home. Took the Radon level from 11.8 down to less than 1.6 They ran all the pipes inside my home and fan in an attic. Looks great and no more worries. Wayne is a very kind and trustworthy man. He was very competitive in price and great on quality. He should be the only company you call for getting rid of radon. ....Gary V."
Response time7 hrs
Response rate96%
Recommended by40%of homeowners
Avatar for Security First Home Inspections & Remediation
Security First Home Inspections & Remediation
4.8(
9
)

Serving Dayton, OH and surrounding areas

Free estimates

Credit card accepted

"I just put a brand new roof on my home and i called a security first inspection to come out and make sure it was done properly and he found major issues with the ventilation the roofers put on so it was worth my money to call someone out that did identify problems and i got it straightened out before it caused an issuea,"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+2

Recommended by100%of homeowners
FAQs for radon gas testing projects in Dayton, OH

Radon is the second leading cause of lung cancer in the U.S. The gas seeps through cracks in foundations and collects in basements and other low areas. Once you breathe it in, radioactive particles lodge in lung tissue and do long-term damage. Because you can’t see or smell radon, the EPA recommends testing your home every two years—and after major renovations—to keep your family safe.

Yes—every home should be tested. The EPA advises doing it at least every two years and any time you remodel, buy, or sell. On average, one in 15 houses nationwide sits above the recommended limit, and the only way to know where yours stands is a formal test. The equipment simply measures gas levels and won’t change your indoor environment, so the process is completely harmless.

Certified radon professionals—often home inspectors or dedicated radon mitigation contractors—handle testing. These radon testing professionals follow EPA protocols and use calibrated instruments to check levels throughout your house. Hiring a certified radon specialist means results you can trust for real estate deals, insurance requirements, and, most importantly, your family’s health.

Inspectors specialize in measuring radon gas levels, while licensed mitigation contractors design and install the systems that remove it. If your test comes back high, your inspector can point you to a qualified mitigation pro who will size and install the right fan, piping, or other equipment to bring levels down.

No—standard home air purifiers don’t touch radon. They’re built to trap dust and pollen, not radioactive gas. If testing shows high levels, you’ll need a dedicated mitigation system that vents the gas from beneath your home to the outdoors. Relying on a room purifier alone won’t keep your indoor air safe.

Opening a few windows in your home might dilute radon for a short time, but the gas seeps back in as soon as they’re closed. For a lasting fix, you’ll need a professional mitigation system—often a sub-slab depressurization fan—that pulls radon from beneath the foundation and safely vents it outside.

The Dayton, OH homeowners’ guide to radon gas testings

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