Your family deserves safe, clean air at home.
Professional radon testing and mitigation for Ohio homeowners. Licensed, caring service across Columbus, Dayton, Cincinnati, and all of Central & Southwest Ohio.
Real installCentral Ohio home
Complete radon protection, start to finish.
From the first test to the final verification reading, every step is handled by Ohio-licensed, NRPP-certified professionals who treat your home like their own.
48 hrsto resultsRadon Testing
We use EPA-approved continuous radon monitors — not charcoal canisters — to give you accurate, time-stamped results in as little as 48 hours. Every report is written in plain English, with a clear recommendation and no pressure.
- Continuous radon monitor (CRM)
- 48-hour short-term tests
- Long-term 90+ day testing
- Real estate transaction testing
- Post-mitigation verification
- Timestamped data log included
Radon Mitigation
We design and install custom sub-slab depressurization systems that draw radon from beneath your foundation before it ever enters your home. Every installation is backed by a written guarantee: below 4.0 pCi/L, or we fix it at no charge.
- Active sub-slab depressurization
- Sump pit sealing & ventilation
- Crawl space encapsulation
- Fan warranties up to 5 years
- Post-install verification test
- Guaranteed below 4.0 pCi/L
99%reduction possible
1 in 3OH homes test highReal Estate Radon
Radon can make or break a transaction in Ohio’s Zone 1 market. We understand real estate timelines — results within your inspection period, documentation that satisfies lenders, and quick-turn mitigation when it’s needed before closing.
- Inspection-period scheduling
- Certified CRM testing
- NRPP-compliant reports
- Pre-listing testing for sellers
- Fast-turn mitigation installs
- Lender-ready documentation
New Construction Radon
Passive RRNC features in new Ohio homes often aren’t enough in Zone 1 geology. Carl coordinates with builders pre-drywall, establishes your post-construction baseline, and converts passive systems to active when needed — before your family moves in.
- Pre-drywall rough-in inspection
- Post-construction baseline CRM test
- Passive-to-active RRNC upgrade
- Builder coordination included
- Warranty-ready documentation
- Guaranteed below 4.0 pCi/L
~1 in 4new OH homes test high
8 hrsavg. daily worker exposureCommercial Radon
Workers and students spending 8+ hours daily in a high-radon building accumulate exposure faster than most homeowners. We provide multi-point commercial testing, compliance-ready written reports, and scaled mitigation systems for Ohio businesses.
- Multi-point CRM protocol
- Schools & daycares prioritized
- Compliance-ready written report
- Multi-unit rental properties
- Commercial mitigation systems
- Licensed ODH professional #RS579
Ohio neighbors protecting Ohio families.
Buckeye State Radon is owned and operated by Carl Woolwine, a licensed Ohio radon professional. Across 30+ years inside Ohio homes — including years of licensed radon testing and mitigation —, we’ve seen firsthand how often radon is overlooked — until it shouldn’t be.
Ohio is classified as a Zone 1 state by the EPA — meaning radon levels are predicted to be at their highest. We’ve personally measured levels exceeding 20 pCi/L in homes that looked perfectly safe from the outside. Roughly 1 in 3 homes across our service area test above the EPA’s recommended action level of 4.0 pCi/L. We built this company around one commitment: honest answers and a guaranteed fix. Buckeye State Radon continues the radon practice of Air Duct Cleaning & Radon Co. — the company Carl founded in 1990.
CARL’S VERIFIED CREDENTIALS
- ODH Radon Contractor License #RC362
- ODH Radon Measurement Specialist #RS579
- NRPP Certified Professional
- Serving Ohio Homes Since 1990
Family owned & operatedThe name on the truck is the family behind it
Licensed. Guaranteed. Local.
Licensed & Licensed
Ohio Dept. of Health licensed (#RC362 & #RS579) and NRPP certified — credentials that meet the highest standards set for radon professionals in the state.
Guaranteed Results
We guarantee radon levels below the EPA action level of 4.0 pCi/L after every mitigation install. If we don’t hit it, we fix it at zero cost to you.
Fast & Responsive
Results in 48 hours. Most mitigation systems are installed within 1–2 business days. We know you can’t always wait — and we don’t make you.
Locally Owned
We’re not a national franchise — we’re your neighbors. We’ve lived with Ohio’s geology, its winters, its housing stock, for over 30 years.
The work speaks for itself.
Every photo below is from an actual Buckeye State Radon job in an Ohio home — no stock photos, no staging.
Columbus to Cincinnati — and everywhere in between.
We cover the entire Central and Southwest Ohio corridor. Every community, every county, one licensed team.
Columbus Metro
Franklin County & Central Ohio- Columbus
- Dublin
- Westerville
- Hilliard
- Grove City
- Upper Arlington
- Worthington
- Powell
- +4 more
Dayton Metro
Montgomery & Greene Counties — Miami Valley- Dayton
- Centerville
- Beavercreek
- Kettering
- Fairborn
- Huber Heights
- Xenia
- Troy
- +4 more
Cincinnati Metro
Hamilton, Warren & Butler Counties- Cincinnati
- Mason
- West Chester
- Liberty Township
- Fairfield
- Hamilton
- Middletown
- Lebanon
- +4 more
The Columbus–Dayton–Cincinnati corridor
Every community along the I-70 / I-71 / I-75 triangle.
- Springfield
- London
- Marysville
- Delaware
- Lancaster
- Newark
- Granville
- Circleville
- Chillicothe
- Washington C.H.
- Wilmington
- Urbana
18 Ohio counties, one licensed team
All within Ohio’s EPA Zone 1 — the highest radon risk designation.
- Franklin
- Delaware
- Licking
- Fairfield
- Pickaway
- Union
- Madison
- Montgomery
- Greene
- Clark
- Miami
- Warren
- Butler
- Hamilton
- Clermont
- Knox
- Champaign
- Fayette
Don’t see your area?
We may still serve you — just ask. One call settles it.
Building our record
Every radon-free home we protect is a story worth telling. If Carl has helped your family, we’d love to share your experience with other Ohio homeowners who are weighing the same decision.
— Sarah M., Dublin, OH
Leave a Google Review
Help Ohio homeowners find Carl. Your honest experience helps the next family make an informed decision.
Leave a Google ReviewVERIFIED CREDENTIALS
- ODH Radon Contractor #RC362
- ODH Measurement Specialist #RS579
- NRPP Certified Radon Professional
- 30+ Years in Ohio Homes
- Fully Insured & Bonded
Questions we hear from Ohio homeowners every day
We believe informed homeowners make better decisions. Here are honest, plain-English answers to the most common radon questions.
Still have questions?
We love talking to homeowners. No scripts, no sales pressure.
Read the full Ohio Radon Guide →
Sources: U.S. EPA — Radon · Ohio Dept. of Health Radon Program
What is radon and why is it dangerous?
Radon is a naturally occurring radioactive gas that rises from the decay of uranium in soil and rock. It’s colorless, odorless, and tasteless. When radon seeps into your home through cracks and openings in the foundation, it can accumulate to dangerous levels. The EPA and the Surgeon General identify radon as the second leading cause of lung cancer in the U.S., responsible for about 21,000 deaths each year.
What is the EPA action level for radon?
The EPA recommends action to reduce radon at or above 4.0 picocuries per liter (pCi/L). However, even levels between 2.0 and 4.0 pCi/L carry some risk, and homeowners may want to consider mitigation. The average outdoor radon level is about 0.4 pCi/L — which illustrates just how concentrated indoor accumulation can become.
How common is high radon in Ohio?
Very common. Ohio is an EPA Zone 1 state, meaning radon levels are predicted to be at their highest. Across Central and Southwest Ohio — from Columbus through Dayton and Cincinnati — approximately 1 in 3 homes test above the EPA action level of 4.0 pCi/L. The underlying geology of limestone and shale makes our region especially prone.
How does radon testing work?
We place a continuous radon monitor (CRM) in the lowest livable level of your home for a minimum of 48 hours. The device takes hourly readings and provides a precise average. During testing, we ask that you maintain closed-building conditions. After the test, you receive a detailed report with your results, the full hourly data log, and clear recommendations — in plain English.
How does a radon mitigation system work?
The most effective method is Active Sub-Slab Depressurization (ASD). We drill a small hole through the basement floor, insert a PVC pipe, and connect it to a specialized radon fan. This creates negative pressure beneath the slab, drawing radon from the soil before it enters your home and venting it safely above the roofline. The system runs continuously and uses about as much electricity as a 75-watt light bulb.
How long does installation take?
Most residential mitigation systems are installed in 3–5 hours. More complex foundations, crawl spaces, or homes requiring multiple suction points may take a full day. We always schedule a post-mitigation test to verify performance before we consider the job done.
How much does radon testing and mitigation cost?
Radon testing typically costs $125–$175 for a standard 48-hour professional test. Mitigation system installation generally ranges from $800–$1,500 depending on foundation type, home size, and system complexity. We provide free estimates with all costs explained upfront — no surprises.
Do you serve the Cincinnati and Dayton areas?
Yes — we serve the entire Central and Southwest Ohio corridor, from Columbus and its suburbs through Springfield, Dayton, and all the way to Cincinnati and surrounding communities. If you’re unsure whether you’re in our service area, just give us a call.
Let’s protect your home.
Every inquiry gets a personal response within 24 hours — often same day. No bots, no call centers. Just a real Ohio radon professional.
Serving all of Central & Southwest Ohio — Columbus, Dayton, Cincinnati, and everywhere in between.
WHY HOMEOWNERS TRUST US
- ODH Radon Contractor License #RC362
- ODH Measurement Specialist License #RS579
- NRPP Certified Professional
- Results guaranteed below EPA limits
- Free estimates, upfront pricing
Request a Free Estimate
Fill out the form — we’ll be in touch within 24 hours.
Radon is invisible.
The risk is not.
The only way to know if your family is at risk is to test. A professional radon test costs less than a tank of gas and takes 48 hours. If levels are high, we fix it — and we guarantee the result.