Alpharetta’s rapid growth in northern Fulton County spans three decades of residential construction, from established 1980s-1990s subdivisions along Old Milton Parkway to newer mixed-use developments near GA-400. Radon levels vary by home, soil, and foundation type regardless of when the house was built.
Jeremy Shelton has been testing Alpharetta 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 Alpharetta with results in 48-72 hours. We test and report. We do not mitigate.
Know your number
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Yes, but levels vary by property.
Alpharetta and Fulton County sit in EPA Zone 2, which predicts average indoor radon screening levels between 2 and 4 pCi/L. The EPA recommends taking action when levels reach 4.0 pCi/L. Results vary significantly between neighboring properties depending on soil composition, foundation type, and home construction.
Alpharetta’s geology is part of Georgia’s Piedmont Plateau, where granite, gneiss, and schist contain naturally occurring uranium. As uranium decays, it produces radon gas that migrates upward and enters homes through crawlspace openings, slab gaps, and foundation penetrations. Two homes on the same street can test at completely different levels depending on soil, foundation, and ventilation.
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.
Alpharetta’s mix of construction eras and foundation types is what makes block-level generalizations unreliable.
Areas like Haynes Bridge, Kimball Bridge, and the Old Milton corridor include many open crawlspace homes where soil gases have a direct pathway into the living space. Without a sealed vapor barrier, radon accumulates in the lowest livable level.
Newer developments near North Point Parkway and Windward use slab-on-grade construction. Radon enters through concrete joints and plumbing penetrations; slab homes test elevated more often than owners expect.
Modern energy-efficient homes in Alpharetta’s mixed-use and master-planned areas are tightly sealed. Less air exchange concentrates whatever radon enters through the foundation, making certified testing especially worthwhile here.
Larger custom homes in the Crabapple and Windward Parkway areas include basements where radon concentrates first. Basements are always the priority test location. Radon is rarely detected without a certified test.
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 Alpharetta 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 Alpharetta 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 Alpharetta and North Fulton County, including:
If your neighborhood isn’t listed, we still test there.
Alpharetta and Fulton County fall in EPA Zone 2, which predicts average indoor radon screening levels between 2 and 4 pCi/L. The EPA recommends taking action when levels reach 4.0 pCi/L or above. Results vary significantly between neighboring homes depending on foundation type, soil composition, and ventilation. The only way to know your home's actual radon level is a calibrated, certified test.
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 Alpharetta 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 Alpharetta 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 Alpharetta 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.