Duluth’s residential market spans six decades of construction, from Berkeley Lake’s 1940s lake cottages and Cardinal Lake’s 1960s ranches to the 1990s-2000s estates of Sugarloaf Country Club. The Brevard Fault Zone runs directly through Duluth, fracturing the granite-gneiss bedrock and creating migration pathways for radon into every foundation type in the city. SafeAir provides independent, certified radon testing in Duluth with same-day scheduling and results in 48-72 hours.
Jeremy Shelton has been testing Duluth 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 Duluth with results in 48-72 hours. We test and report. We do not mitigate.
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Yes, and Duluth’s geology and housing range both warrant testing.
Gwinnett County is EPA Zone 2, and Duluth’s measured radon average of approximately 4.3 pCi/L exceeds the EPA action level of 4.0 pCi/L. The Brevard Fault Zone, a 600-kilometer Appalachian tectonic feature confirmed in Georgia EPD Bulletin B-77, runs directly through Duluth and continues through Buford and Gainesville. Along this fault, crystalline rocks were crushed and fractured under tectonic pressure, creating cataclastic gneisses and schists that accelerate radon migration from bedrock toward building foundations. Piedmont granites typically contain 2 to 5 parts per million uranium, higher than sedimentary rock formations.
The UGA Radon Education Program estimates 22 to 28 percent of tested Gwinnett County homes have elevated radon levels. Duluth’s clay-rich Piedmont soils are permeable to soil gas, providing an upward migration path from uranium-bearing granite to foundations. Foundation type is the primary differentiator: the crawlspace stock in 1970s-1980s communities like Sweet Bottom Plantation differs in risk profile from the finished basements in Sugarloaf Country Club and Stonebrier at Sugarloaf, but all foundation types warrant a certified test.
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.
Duluth’s residential market spans six decades: Berkeley Lake’s 1940s lake cottages, Cardinal Lake’s 1960s ranches, the 1970s-1980s suburban communities of Sweet Bottom Plantation and Ives Country Club, and the 1990s-2000s estates along the Sugarloaf Parkway corridor. The Brevard Fault Zone fractures the bedrock beneath every neighborhood.
Sweet Bottom Plantation (late 1970s) and the Ives Country Club area (1970s to mid-1980s) represent Duluth’s first suburban wave. Ranch-style homes from this era in Gwinnett County were built predominantly with vented crawlspace foundations over Piedmont clay soils. The crawlspace creates a direct pathway for soil gas from below the living floor.
Berkeley Lake’s original lakeside cottages (built from 1948) and Cardinal Lake’s homes (built from 1960) were constructed with crawlspace and pier-and-beam foundations, standard for that era in the Georgia Piedmont. Many of these properties have remained in family ownership for decades with no radon test on record.
Sugarloaf Country Club (1996-2024) and Stonebrier at Sugarloaf were built on hillside terrain that drove basement and daylight-basement construction. Finished basements along the Sugarloaf corridor sit in direct soil contact with Piedmont granite-gneiss on the uphill side, the configuration with the most direct radon entry pathway.
River Plantation (1993+) and Riverbrooke (1980s-1990s) were built when slab-on-grade became standard in Gwinnett County construction. Slab homes still carry radon risk through control joints, utility penetrations, and slab cracks. The Brevard Fault Zone fractures beneath Duluth are geological and independent of foundation selection.
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 Duluth 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 Duluth 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 Duluth and surrounding Gwinnett County communities, including:
If your neighborhood isn’t listed, we still test there.
Gwinnett County is EPA Zone 2, with a measured Duluth city average of approximately 4.3 pCi/L above the EPA action level of 4.0 pCi/L. The Brevard Fault Zone runs directly through Duluth, verified in Georgia EPD geology documentation, fracturing the granite-gneiss and schist bedrock and accelerating radon migration upward toward foundations. Approximately 22 to 28 percent of tested Gwinnett County homes exceed 4.0 pCi/L per the UGA Radon Education Program. Crawlspace homes in Sweet Bottom Plantation and Berkeley Lake, and finished basements in Sugarloaf Country Club, carry different risk profiles but all warrant a 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 Duluth 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 Duluth 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 Duluth 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.