Radon Testing

Florida Certified radon measurement businesses can test your home for radon.  Homeowners may also test their house using over-the-counter (OTC) radon proficient devices available at local home improvement stores or through the internet. The OTC kits are simple to use and are relatively inexpensive (around $20 for short term tests and around $50 for long term tests). To purchase a do-it-yourself kit, check with your local home improvement hardware store or discount department store. Frequently they display radon test kits with the lead test kits, smoke alarms and carbon monoxide detectors. Reliable radon test kits are listed with the National Radon Proficiency Program or the National Radon Safety Board. Additionally, any test kit purchased and deployed needs to be returned to the laboratory for analysis. If you cannot find test kits available locally, search and purchase one online.

Another option is to hire a state certified radon testing company. Anyone offering professional radon services must have a Florida Department of Health Radon Certification. See a complete list of Radon Measurement Businesses by County Need more options? Consider looking at businesses that have 'statewide' as their service area. Some companies have specialists and technicians in several areas or travel to different parts of the state as part of their normal business.

A complete list of Radon Measurement Businesses by County can be found at our Florida certified radon measurement business list. If you decide you want more options, consider looking at businesses that have 'statewide' as their service area. Some of those companies have specialists and technicians in several areas or travel to different parts of the state as part of their normal business.

My home was recently tested for radon by a person that is not listed on your website as being "certified". Could they be certified if they are not on your list? Can I report them if they are not certified?

Every person hired to test or fix radon problems must be certified by the Florida Department of Health. Please report any violations to 1-800-543-8279. It is possible that the person may be a new specialist who has not been added to our website, so please ask us and we will be glad to check our database.

Testing by a Florida Certified radon measurement businesses is easy. Test kits have easy to follow directions. Testing is as simple as opening a package, placing a radon detector in your home in a designated area, and, after the prescribed number of days, sealing the detector back in the package and mailing it to a lab. The whole process only takes a few minutes of your time! If you conduct the test as specified you should obtain accurate results.

Yes. The only way to know for sure if you have a radon problem, and to protect your family from radon, is to test your home. Various federal and state agencies have conducted radon surveys through the United States. In addition, the EPA has broken the state down into three zones according to their potential for high indoor radon levels, with Zone 1 having the highest radon potential. Homes in Zones 1 and 2 have a statistically higher chance of having elevated levels of radon. However, elevated levels of radon have been found in homes in many counties designated as low radon potentials (zone 3).

Yes. Radon levels can vary greatly from house to house, even on the same street. It is nearly impossible to predict the exact nature of geologic soil deposits and the extent to which soil gasses can seep into and be retained by a specific house. The only way to know whether radon exists in elevated levels in your home, and to protect your family from radon, is to test.

The only way to know if a particular structure has elevated radon levels is to test it. Radon problems are found throughout Florida and no area is immune to it. The Department of Health does provide zip code based statistics of radon levels in buildings in Florida. You may visit our Radon Data by Zip Code page, to view information on radon testing results for other zip codes. This data is taken from reports submitted by state certified radon testing companies, and may not be up to date (for the latest information call 1-800-543-8279). As such, it is not based on any scientific sampling methodology but sampling driven solely by those willing to pay for professional radon testing. This data cannot be used to predict radon levels in untested properties.

Radon is found everywhere, and the only way to know the levels in any particular building is to test that structure.  Florida Statute 404.056(5) requires the following notification about radon in real estate transactions: "RADON GAS: Radon is a naturally occurring radioactive gas that, when it has accumulated in a building in sufficient quantities, may present health risks to persons who are exposed to it over time. Levels of radon that exceed federal and state guidelines have been found in buildings in Florida. Additional information regarding radon and radon testing may be obtained from your county health department." Radon is like any other issue encountered in a real estate transaction, and elevated levels can be reduced. To further discuss radon measurement in real estate transactions or for any other issues please call 1-800-543-8279.

For real estate transactions: follow mitigation guidance as outlined in the US EPA Homebuyers and Sellers Guide to Radon.

For short term test:

• If your results are below 4 pCi/L, continue testing your home every 2 years.
• If your results were twice the EPA Action level or greater, it is suggested that you perform another radon test in the same area and for the same duration, and then average the results of the 2 tests.
• If the average of these two tests is below 4 pCi/L, then retest your home every 2 years.
• If the average is above 4 pCi/L, consult with a certified mitigator regarding your next step.
• If the result is above 4 pCi/l but less than 8 pCi/l, choose between either a short term or a long term follow-up test. A long term test would be preferred. A long term test lasts over 91 days and provides a better representation of the long term average radon concentration in your home. It takes into account variations in radon concentration that naturally occur over time.
• If the follow up test result is over 4 pCi/L, consult with a certified mitigator regarding your next step.

Long term test:

• If the result is less than 4 pCi/L, continue testing your home every 2 years.
• If the result is greater than 4 pCi/L, it is suggested that you perform another short term test in the same area and average the results.
• If the results of both tests or the average of both tests are greater than 4 pCi/L, consult with a certified mitigatorregarding your next step.