Radon Testing & Mitigation in Columbus
Columbus sits atop a complex mix of glacial till, limestone, and shale geology that drives some of the highest radon concentrations in Ohio. Our licensed team has tested and protected thousands of Franklin County homes — from Hilliard to Pickerington, Dublin to Grove City.
Why Columbus Homeowners Need to Know
Approximately 40% of Franklin County homes test at or above 4.0 pCi/L. Neighborhoods with older construction like Upper Arlington, Clintonville, and Bexley consistently show the highest readings in Carl’s experience across the Columbus metro.
Columbus sits above limestone and dolomite bedrock layered with glacial till from the Wisconsin Glaciation — conditions that continuously produce and migrate radon upward into homes. Just east, a 2025 Harvard study identified Licking County (Newark, ZIP 43055) as having the highest residential radon concentration in the entire country — and it sits inside our service area.
Radon is invisible, odorless, and tasteless. The only way to know if your family is at risk is to test. It takes 48 hours and costs less than a tank of gas.
WHAT THE EPA SAYS ABOUT OHIO
- Ohio is EPA Zone 1 — the highest radon risk designation.
- The EPA action level is 4.0 pCi/L — above this, mitigate.
- Radon is the #1 cause of lung cancer in non-smokers.
- ~21,000 Americans die from radon-induced lung cancer each year.
- No color, smell, or taste — testing is the only detection method.
RADON LEVEL RISK SCALE
- 0 – 2.0 pCi/LLow Risk
- 2.0 – 4.0 pCi/LModerate — Consider Mitigation
- 4.0 – 8.0 pCi/LHigh — EPA Action Level
- 8.0+ pCi/LVery High — Mitigate Now
Related reading
- Radon Testing in Westerville, OHDelaware County — nearly 50% of homes above EPA limit.
- Radon Testing in Dublin, OHHigh real estate volume, educated buyers, active testing market.
- Radon in Newark & Licking CountyThe highest-radon county in America per a 2025 Harvard study — ~75% of homes above EPA limits.
- Radon Testing in Dayton, OHServing the Miami Valley — Montgomery, Greene, and Clark counties.
- Radon Testing in Cincinnati, OHServing Greater Cincinnati — Hamilton, Warren, and Butler counties.
- About Carl WoolwineODH #RC362 & #RS579 — Carl’s credentials and three decades protecting Ohio families.
We serve Franklin County and all surrounding counties
Don’t see your community? Call us — we likely serve you or can point you to a trusted partner.
FRANKLIN COUNTY
- Columbus
- Dublin
- Westerville
- Hilliard
- Grove City
- Reynoldsburg
- Gahanna
- Upper Arlington
- Worthington
- Bexley
- Whitehall
- Groveport
- Canal Winchester
- New Albany
FAIRFIELD COUNTY
- Pickerington
- Lancaster
- Baltimore
- Carroll
LICKING COUNTY
- Pataskala
- Granville
- Heath
- Newark
DELAWARE COUNTY
- Powell
- Westerville
- Lewis Center
- Delaware City
- Sunbury
UNION COUNTY
- Marysville
- Plain City
A simple, honest process
We make protecting your Columbus home straightforward and stress-free.
Schedule
Call or request online. We confirm within 24 hours — often same day for Columbus, Dayton, and Cincinnati area homes.
Test
Our licensed technician places a continuous radon monitor in the lowest livable area. Results in 48 hours.
Results
You receive a detailed report with your radon level, risk context, and clear recommendations — in plain English.
Protect
If needed, we install a custom mitigation system with results guaranteed below the EPA action level of 4.0 pCi/L.
“We had dangerously high radon levels in our basement — 12.4 pCi/L. Buckeye State Radon installed a mitigation system in one day and our levels dropped to 0.8. The team was honest, professional, and genuinely cared about our family’s safety.”
Sarah M.Dublin, OH“As a Columbus-area realtor, I’ve referred dozens of buyers and sellers to Buckeye State Radon. They always deliver fast, accurate results and top-quality installations. They’re my go-to for every transaction.”
Patricia D.Grove City, OH“We were buying our first home in Westerville and the inspector flagged potential radon risk. Buckeye State Radon came out quickly, tested, and had a mitigation system installed before our closing date. Couldn’t have been smoother.”
Mark & Julie T.Westerville, OHHonest, plain-English answers
The radon questions we hear most from Columbus-area residents.
Have a question we didn’t answer? Call us directly — we’re always happy to talk.
☎ (614) 686-0000Sources: U.S. EPA — Radon · Ohio Dept. of Health Radon Program
How common is high radon in Columbus and Franklin County?
Very common. Approximately 40% of homes in Franklin County test at or above the EPA action level of 4.0 pCi/L. Apartment communities and HUD portfolio deals: see multifamily radon testing. The Columbus metro’s glacially deposited soils and underlying limestone bedrock make it one of Ohio’s highest-risk areas. Neighborhoods with older homes and basements — like Clintonville, Bexley, and Upper Arlington — tend to see the highest readings.
I’m buying a home in the Columbus suburbs — should I require a radon test?
Absolutely. Radon testing has become standard practice in Central Ohio real estate transactions. Whether you’re buying in Dublin, New Albany, Pickerington, or Hilliard, we strongly recommend including a radon test in your inspection contingency. We offer expedited 48-hour testing specifically for real estate timelines.
Does the age of my Columbus home affect radon risk?
Radon can enter any home regardless of age — it’s determined by the underlying geology and your foundation type. However, older Columbus-area homes (pre-1980) may have more foundation cracks, unsealed utility penetrations, and less airtight construction, which can allow more radon entry. Newer homes built to modern radon-resistant construction standards may still test high.
What neighborhoods in Columbus have the highest radon levels?
Radon levels vary even street-by-street, so neighborhood averages are only a guide — your specific home must be tested. That said, homes in Upper Arlington, Clintonville, Bexley, and older Westerville neighborhoods have frequently shown elevated readings in our experience, as have many homes in suburban Franklin County.
How does radon mitigation work in Columbus-area homes?
Most Columbus-area homes with basements are good candidates for Active Sub-Slab Depressurization (ASD) — the most effective mitigation method. We drill a small hole through the basement slab, insert a PVC pipe, and attach a specialized fan that draws radon from beneath the foundation before it enters your living space, venting it safely above the roofline. For homes with crawl spaces, we also provide encapsulation and ventilation solutions.
How quickly can Buckeye State Radon serve Columbus customers?
We typically schedule testing within 1-3 business days for Columbus and Franklin County customers. After a 48-hour test period, you’ll have results within 24 hours. If mitigation is needed, most systems are installed within 1-2 business days of your decision to proceed.
Central & Southwest Ohio
From Columbus through Dayton to Cincinnati — and every community in between.
Westerville, OH
Delaware County radon risk is among Ohio’s highest — nearly half of Westerville homes test above the EPA limit.
Dublin, OH
One of Central Ohio’s most active real estate markets. Radon testing is now standard practice in virtually every Dublin transaction.
Dayton, OH
The Miami Valley’s limestone geology drives above-average radon levels across Montgomery, Greene, and Clark counties.
Cincinnati, OH
Greater Cincinnati’s Ordovician limestone bedrock creates significant radon risk in Hamilton, Warren, and Butler counties.
Ready to test your Columbus home?
Radon exposure is cumulative. Every day without knowing is a day of unnecessary risk. Testing is simple, affordable, and fast.
Mon–Fri 8am–6pm · Sat 9am–2pm