Lithonia is the namesake of the Lithonia Gneiss, a geological formation that produced the highest measured radon rate of any gneiss in the 1995 AARST Atlanta-area radon study: 19.4 percent of tested homes exceeded the EPA action level. Arabia Mountain, within the Lithonia area, is underlain by the same metamorphic rock belt. A 2015 study found approximately 73 percent of homes in eastern DeKalb County had detectable radon levels. SafeAir provides independent, certified radon testing throughout Lithonia with same-day scheduling and results in 48-72 hours.
Jeremy Shelton has been testing Lithonia homes for indoor air quality problems since 2009. He founded SafeAir after discovering a mold infestation in his own crawlspace had affected his health for more than a year. Radon is different from mold in every way but one: you can’t know it’s there without a test.
SafeAir provides ACAC & IICRC-certified radon testing across Lithonia with results in 48-72 hours. We test and report. We do not mitigate.
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Yes, and Lithonia’s underlying geology makes it among the most relevant cities in DeKalb County for radon testing.
Lithonia and DeKalb County are classified as EPA Zone 2. The Lithonia Gneiss formation, named for this city after its granite quarry operations in the 1800s and early 1900s, produced a 19.4 percent elevated-home rate in the 1995 AARST Atlanta-area radon study, the highest of all gneiss formations surveyed in the metro area. Arabia Mountain and its surrounding residential areas are underlain by the same metamorphic belt.
A 2015 environmental health study found approximately 73 percent of homes in eastern DeKalb County had detectable radon levels. Stonecrest-area subdivisions from the 1990s and 2000s, including Eagles Ridge and the Shoals at Klondike, sit on crawlspace and slab foundations above the same Lithonia Gneiss documented in that research. Foundation type affects entry rate, but the underlying geology is consistent across all Lithonia-area neighborhoods.
Zone data gives you a probability. A test gives you your actual number.
According to the U.S. EPA, radon is the second leading cause of lung cancer in the United States.
Lithonia’s housing spans from early 20th-century structures above exposed gneiss to 2000s Stonecrest-era subdivisions on the same formation.
Residential areas near Arabia Mountain and the Panola Road corridor sit closest to the surface expression of the Lithonia Gneiss. Crawlspace homes in this zone have the most direct exposure to soil gas migration from the bedrock below.
Stonecrest-area development from the 1990s, including Eagles Ridge and Princeton Lakes, uses a mix of crawlspace and slab-on-grade construction. The elevated detectable-radon rate documented in eastern DeKalb applies to this era and location.
Later Stonecrest-era communities like Shoals at Klondike and Davidson Estates represent the slab-dominant 2000s phase. Slab homes in the Lithonia Gneiss zone test elevated more often than owners expect. Radon enters through concrete floor joints and utility penetrations in the same bedrock geology.
The historic Lithonia city core contains the area’s oldest housing, with pier-and-beam and early crawlspace homes that predate modern vapor barriers. These structures have the most direct connection to the Lithonia Gneiss formation and require testing for any reliable result.
Whatever your home type, the continuous monitor goes in your lowest livable level. The result is specific to your property, your foundation, your soil.
Jeremy or a SafeAir consultant places a calibrated continuous monitoring device in the lowest livable level of your home. The device records radon readings hour by hour over 48 hours.
Continuous electronic monitors produce significantly more data than charcoal canister kits. Their results are accepted by lenders, buyers’ agents, and real estate attorneys throughout Georgia. The $15 UGA Extension kit works for general awareness. It does not work for real estate transactions.
After device pickup, your written report arrives within 24 hours. It documents your radon level, testing conditions, and the inspector’s certification. A SafeAir consultant reviews the findings with you directly.
You do not need to be home during the 48-hour measurement period.
Calibrated continuous monitor set in your lowest livable level.
Hour-by-hour readings recorded. No need to be home.
Certified written report, reviewed with you directly.
Radon comes up on most Lithonia contracts now. Buyers’ agents request it. Some lenders require it. The due diligence window on most Georgia contracts runs 7–10 days.
What matters in that window: you need an independent result. A company that tests and sells mitigation has a financial reason to find a problem. SafeAir tests and reports only. If the result is below 4.0 pCi/L, you’re done. If it’s above, you know before closing and you negotiate from that position.
Mitigation in Lithonia typically runs $800–$2,500 depending on foundation type and system design. Knowing the number before you close is leverage. Discovering it after is not.
If scheduling is time-sensitive, note your closing date in the form. SafeAir prioritizes contingency-window requests.
SafeAir does not sell radon mitigation systems. That is a deliberate choice.
Most radon companies test and mitigate. That creates a conflict: the company that finds a problem also profits from solving it. Jeremy built SafeAir to remove that conflict. He reports what the monitor records, regardless of the result. If your test comes back elevated, he explains what the number means and what your options look like. You choose your mitigator independently.
Jeremy holds certifications through ACAC (Certified Indoor Environmental Consultant, Certified Microbial Consultant) and IICRC. He has been testing indoor air quality in Georgia homes since 2009.
SafeAir tests homes and properties throughout Lithonia, Stonecrest, and the surrounding eastern DeKalb County area, including:
If your neighborhood isn’t listed, we still test there.
Lithonia and DeKalb County are classified as EPA Zone 2. The Lithonia Gneiss formation, named for this city, produced a 19.4 percent elevated-home rate in the 1995 AARST Atlanta-area radon study, the highest of all gneiss formations surveyed in the metro area. Arabia Mountain and its surrounding neighborhoods are underlain by the same metamorphic belt. A 2015 environmental health study found approximately 73 percent of eastern DeKalb County homes had detectable radon levels. Stonecrest-area subdivisions from the 1990s and 2000s sit on crawlspace and slab foundations above this same formation.
There are none. Radon is odorless, colorless, and produces no symptoms you would connect to it. Long-term exposure is cumulative. The only way to know if radon is present at an elevated level is a certified test.
Contact SafeAir for current pricing. For context: professional continuous monitor testing in the Lithonia area typically runs $150-$300. The UGA Extension Program offers $15 charcoal kits for general screening, but those results are not accepted in most real estate transactions.
SafeAir uses 48-hour continuous electronic monitors. Your written report is typically delivered within 24 hours of device pickup. Most Lithonia clients have results in hand within 3-4 days of scheduling.
The EPA recommends mitigation at that level. SafeAir provides the test and the result. We do not sell mitigation systems. If your result is elevated, we explain what it means and what your options are. Mitigation in Lithonia typically costs $800-$2,500 depending on foundation type.
Georgia has no state law requiring radon disclosure or testing for home sales. However, buyers increasingly request it during due diligence, and some lenders require it on certain loan types. If a buyer requests a test and the contingency window is open, completing it before that window closes protects your transaction.
Jeremy has tested hundreds of Georgia homes since 2009.
No obligation. No upsell. Just a certified result you can trust.