Certified radon testing & mitigation in Saint Augustine, FL
Radon Mitigation in Saint Augustine, FL
Same-week appointments, guaranteed post-mitigation levels, and upfront pricing from a licensed local crew.
If you are wondering whether your Saint Augustine home has a radon problem, there is only one way to find out: test it. Radon is an odorless, colorless radioactive gas that seeps up out of the soil and collects indoors. The EPA recommends fixing any home that measures 4.0 picocuries per liter (pCi/L) or higher.
Radon forms as uranium in soil and rock breaks down. It travels through cracks in the slab, gaps around plumbing penetrations, and expansion joints, and once it is inside a house it has nowhere to go. Two homes on the same street can test very differently, because what matters is the soil underneath and how your particular house breathes.
Florida homeowners are often surprised by this. There is a stubborn belief that radon is a northern, basement problem and that a slab-on-grade house in a warm climate is somehow exempt. It is not. Elevated radon has been documented in every region of Florida, and a concrete slab is not a seal.
Why it is worth your afternoon: radon is the second leading cause of lung cancer in the United States, and the leading cause among people who have never smoked. The EPA attributes roughly 21,000 lung cancer deaths a year to it. The risk is cumulative rather than acute, which is exactly why it is worth fixing once and fixing properly.
We handle the whole path. A measured test with a calibrated monitor, a result explained in plain English, and if you need it, a mitigation system that vents radon out from under your foundation before it reaches your living space. Most installations take a single day, and we retest afterward so you are not taking our word for it.
Our radon mitigation services in Saint Augustine
Radon Testing
Short-term and long-term radon measurement for Saint Augustine homes, with a clear written result in pCi/L.
Learn more →Radon Mitigation System Installation
Active sub-slab depressurization systems that vent radon out from beneath your foundation, usually installed in a single day.
Learn more →Radon System Inspection & Repair
Diagnostics and repair for radon systems that have failed, weakened, or were never installed correctly.
Learn more →Real Estate Radon Testing
Fast, documented radon testing for Saint Augustine home sales, sized to fit closing timelines.
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Frequently asked questions
How much does radon mitigation cost in Saint Augustine?
Most residential radon mitigation systems in this area land between roughly $900 and $2,500. The final number depends on your foundation type, the home's layout, how far the vent pipe has to travel to a legal discharge point, and whether more than one suction point is needed. We quote after a short walkthrough, itemized, before any work begins.
Is radon actually a problem in Florida?
Yes. Elevated radon has been documented in every region of Florida. It comes from uranium decaying in the soil and rock beneath the house, and levels vary house to house even on the same street. A slab-on-grade foundation does not protect you; radon enters through shrinkage cracks, expansion joints, and the gaps around plumbing penetrations.
What radon level is considered dangerous?
The EPA's action level is 4.0 pCi/L. At or above that, mitigation is recommended. Between 2.0 and 3.9 pCi/L the EPA suggests you consider it. No level of radon is considered completely risk-free, so decisions below 4.0 come down to how much time you spend in the home and your own tolerance for long-term risk.
How long does a radon test take?
A short-term test runs two to seven days, and forty-eight hours is standard for a real estate transaction. A long-term test runs ninety days or more and gives a truer picture of your year-round exposure. You get a written report within a day of the monitor coming out of the house.
How long does it take to install a mitigation system?
Most Saint Augustine homes are finished in a single day, typically four to eight hours. Larger homes, or those needing more than one suction point, can run into a second day. We schedule a post-mitigation test afterward to confirm the levels actually dropped.
Does a slab-on-grade home really need radon mitigation?
It can. Slab-on-grade is the most common foundation we mitigate here. Radon-laden soil gas sits under the slab at slightly higher pressure than the air inside your house, and your air conditioning helps draw it upward through any crack or penetration it can find. The only way to know is to test.
Will a radon system hurt my home sale?
Generally the opposite. Florida requires a radon disclosure in residential sale contracts, so the topic comes up regardless. A documented system with a passing post-mitigation test tells a buyer the issue was found, fixed, and verified, which is a far stronger position than an untested house.
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