Updated August 2026 · Reviewed by Adams, Cameron & Co.
No, Florida law does not require an actual radon test as part of a home sale. What Florida law does require, under Florida Statute 404.056(5), is a specific written radon gas disclosure statement in every contract for sale and purchase and every rental agreement for a building. That disclosure informs the buyer or tenant that radon is a naturally occurring radioactive gas that can accumulate in a building and, over time, may present health risks, and it points them toward their county health department for more information. The statute stops there. It obligates disclosure of the general risk, not testing, and not remediation. A buyer is always free to order a radon test as part of due diligence, and some do, but it isn't a mandatory step the way a home inspection or an appraisal often is, and it's meaningfully less common in Florida than in states with higher naturally occurring radon levels.
- Florida Statute 404.056(5) requires a specific written radon gas disclosure statement in every real estate sale contract and every rental agreement for a building, before or at the time the contract is signed.
- The statute requires disclosure, not testing. Florida law does not obligate a seller, buyer, or landlord to actually test for radon or to remediate it if levels are elevated.
- Radon testing in Florida real estate is optional and buyer-initiated. A buyer can order a test during their inspection period, and inspectors and specialized radon testers offer it, but it isn't a routine or required part of most Florida transactions.
- Radon risk varies significantly by geography, and Florida generally sits in lower EPA radon risk zones compared to many northern and mid-Atlantic states, which is part of why testing is far less routine here than in states like Pennsylvania or Iowa.
- A new agent should know the disclosure language exists in the standard contract, understand it isn't a testing requirement, and be ready to explain to a buyer that ordering a radon test is optional but available if they want that peace of mind.
Does Florida require a radon test in a home sale?
No. This is one of the more commonly misunderstood points in Florida real estate, because the state does require something radon-related in every sale, just not a test. What's actually required is disclosure, and the difference matters. A seller or landlord in Florida has to give the buyer or tenant a specific written statement about radon, but nothing in state law obligates anyone to hire an inspector, run an actual test, or fix anything if a test happens to be done and comes back elevated. Understanding that distinction, disclosure required, testing optional, is the whole answer to whether a Florida sale needs a radon test.
What Florida law actually requires: the radon disclosure
Florida Statute 404.056(5) requires that every building sale contract and every rental agreement include a specific radon gas notification, provided at or before the contract is signed. The required language explains, in the statute's own words, that 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, and that levels of radon that exceed federal and state guidelines have been found in buildings in Florida. It directs the buyer or tenant to their county health department for additional information about testing. This language shows up as standard boilerplate in Florida's most commonly used residential contract forms, which is why most buyers and sellers see it without necessarily registering what it does and doesn't obligate anyone to do.
What radon actually is and why it gets disclosed at all
Radon is a colorless, odorless radioactive gas that occurs naturally from the breakdown of uranium in soil and rock. It can seep into a building through foundation cracks, gaps around pipes, or a crawl space, and because it's undetectable without testing equipment, it can accumulate indoors without anyone noticing. Long-term exposure to elevated radon levels is a recognized health concern, which is exactly why the legislature built a mandatory disclosure into every Florida real estate contract rather than leaving it to chance whether a buyer ever hears about it. The disclosure exists to make sure every buyer at least knows radon is a real, naturally occurring possibility and knows where to go if they want to learn more or test for it, even though the law doesn't force that next step.
How common is radon testing in Florida, really?
Radon risk isn't uniform across the country. It's tied to local soil and rock geology, and the EPA's radon zone maps generally place most of Florida in lower to moderate risk categories compared with a number of northern and mid-Atlantic states where radon testing is far more routine and, in some jurisdictions, effectively expected as part of a normal home sale. That geographic reality is a big part of why radon testing hasn't become a standard step in Florida transactions the way it has elsewhere. It isn't that radon can't be present in a Florida home, it can, and some homes do test with elevated levels, it's that the baseline risk profile across most of the state is lower, so fewer buyers, agents, and lenders treat it as an automatic must-do the way they treat a wind mitigation or 4-point inspection on an older home.
What a new agent should actually know and tell a buyer
A new Florida agent doesn't need to become a radon expert, but should be able to say three things clearly and correctly when a buyer asks. First, the radon disclosure language in the contract is required by law and isn't optional paperwork the agent is choosing to include, so there's nothing unusual or alarming about seeing it. Second, that disclosure does not mean a test has been done or is required, it's informational, and the buyer is free to decide whether they want to order one. Third, if a buyer wants a radon test, it can typically be arranged through a specialized radon tester or, in some cases, added on by a general home inspector, usually during the inspection period, and the buyer should ask directly about cost and turnaround since it isn't automatically bundled into a standard home inspection the way some other add-ons are. Getting this right matters because a buyer who's anxious about radon deserves a straight, accurate answer, not a vague reassurance that skips past what the law actually says, and an agent who confuses disclosure with testing can end up giving a client bad information at exactly the moment they're trying to make a real decision.
What this means for how a deal actually moves
Because testing isn't mandatory, it rarely becomes a point of negotiation in a typical Florida transaction the way roof condition, wind mitigation features, or 4-point inspection results often do. When a buyer does choose to test and levels come back elevated, mitigation systems exist and are a fairly standard, solvable fix, generally involving a sub-slab depressurization system that vents gas safely away from the home. It's rarely a deal-killer the way a failed 4-point inspection or an uninsurable property can be. Most Florida transactions proceed without radon testing ever entering the conversation beyond the required disclosure sitting quietly in the contract, and that's a normal, legally compliant way for a Florida sale to close.
What a radon test actually measures
When a buyer does order a radon test, it typically involves placing a testing device in the lowest livable level of the home for a set period, commonly a short-term test of two to four days, though longer-term tests exist for more precise readings. Results are measured in picocuries per liter (pCi/L), and the Environmental Protection Agency has set 4 pCi/L as its recommended action level, the point at which it suggests taking corrective steps. A reading below that level generally doesn't call for any action at all. This is useful context for a new agent to have on hand, because a buyer who's never dealt with radon before often doesn't know what a “bad” number actually looks like, and being able to explain the action level in plain terms, rather than just saying “ask your inspector,” is the kind of small competence that builds real trust with a client.
What is your next step?
Knowing exactly what Florida law does and doesn't require, on radon and on every other disclosure, is exactly the kind of precise, practical knowledge that lets a new agent answer a buyer's question with confidence instead of a guess. If you haven't started the licensing process yet, our step-by-step Florida real estate license guide walks through the course, the exam, and what comes after. If you're closer to deciding where you'll actually practice, that's a decision worth a real conversation.
Adams, Cameron & Co., the largest brokerage in Volusia and Flagler counties since 1963, trains new agents on the disclosure requirements and practical details that actually come up in Florida transactions, not just what it takes to pass the exam. Start a conversation if you want to talk through what that training actually looks like.
Radon disclosure requirements are set by Florida Statute 404.056 and can be interpreted differently depending on your brokerage's specific forms and policies. Confirm current requirements with the Florida Department of Health and your broker. Educational only, not legal advice.
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