ACAC COUNCIL-CERTIFIED · IICRC CERTIFIED · INDEPENDENT RADON TESTING SINCE 2009
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Winder is the seat of Barrow County in northeast metro Atlanta, where the Inner Piedmont’s granite-gneiss bedrock contributes to radon potential across a housing stock that ranges from 1890s pier-and-beam cottages near downtown to new slab subdivisions along the growth corridor. Barrow County’s testing data shows elevated readings in a meaningful share of homes.
Jeremy Shelton has been testing Winder 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 Winder with results in 48-72 hours. We test and report. We do not mitigate.
Know your number
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Yes, and Barrow County’s test results run higher than the zone designation suggests.
Winder and Barrow County are classified as EPA Zone 2, which predicts average indoor radon levels between 2 and 4 pCi/L. However, the UGA Radon Program groups Barrow among Georgia counties with notably elevated test results relative to that zone classification. The underlying bedrock is Inner Piedmont granitic gneiss, migmatite, and amphibolite, all uranium-bearing crystalline formations. A thick saprolite layer provides an efficient radon migration pathway from bedrock to foundations.
Winder’s housing stock spans four distinct eras: 1890s to 1930s pier-and-beam cottages near the North Broad Street Historic District, mid-century ranch homes on crawlspace foundations, 1990s to 2000s suburban subdivisions with mixed foundations, and current new-construction communities predominantly on slab. Each era and foundation type carries its own radon profile.
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.
Winder’s housing ranges from 1890s downtown cottages to active new-construction subdivisions, and each construction era carries a different radon entry profile.
Winder’s 1990s and early-2000s subdivisions were built on vented crawlspace foundations standard for that era. In these homes, radon migrates upward through the saprolite, enters through the crawlspace floor, and accumulates in the subfloor cavity before entering living areas. Barrow County’s notably elevated test results make crawlspace testing a priority here.
Winder’s newer subdivisions from the 2000s onward are predominantly slab-on-grade. Homes in Ashebrooke, Sims Crossing, and Stonehaven sit atop disturbed Piedmont saprolite that was graded during construction, which can increase soil gas permeability. A post-construction radon test is the only way to confirm whether a slab home in Barrow County is safe.
Winder’s hillier terrain supports basement construction on select lots, particularly in Bellingrath Plantation and sections of Anchor Heights. Basements place living space in direct contact with radon-producing Piedmont saprolite, and basement spaces in Barrow County should be tested regardless of their current use.
Winder’s oldest homes, including Victorian-era and Craftsman bungalows in the North Broad Street Historic District, were built on wood or brick piers with open or semi-enclosed crawlspaces. Historic homes updated with added insulation can paradoxically increase radon accumulation by reducing natural air exchange while leaving soil-gas entry points unaddressed.
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 Winder 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 Winder 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 Winder and Barrow County, including:
If your neighborhood isn’t listed, we still test there.
Winder and Barrow County are classified as EPA Zone 2, but the UGA Radon Program groups Barrow among Georgia counties with notably elevated test results relative to that designation. The Inner Piedmont's granitic gneiss, migmatite, and thick saprolite create consistent radon migration potential across Winder's housing stock, from 1890s pier-and-beam cottages near downtown to new slab subdivisions on the growth corridor. A calibrated, certified test is the only way to know any specific home's radon level.
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 Winder 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 Winder 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 Winder 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.
