Real Estate Radon Testing That Protects Every Party
Whether you’re a buyer, seller, or agent, radon testing is one of the most important steps in any Ohio home transaction. Carl delivers fast, accurate, documented results that satisfy lenders, buyers, and closing timelines.


Real Estate Radon Testing in Ohio
In Ohio’s Zone 1 market, roughly 1 in 3 homes test above 4.0 pCi/L. Radon can delay closings, derail deals, and expose buyers to long-term health risk. Buying or refinancing a multifamily property? See HUD & agency radon testing. Carl has built a reputation across Central and Southwest Ohio for fast, professionally documented results that keep transactions moving.
48-hour CRM testing, lender-ready written reports, and mitigation installed within 1–2 business days when needed. Carl coordinates directly with all transaction parties — buyers, sellers, agents, and title companies.
WHAT’S INCLUDED
- 48-hour professional CRM radon test
- Tamper-resistant, EPA-compliant methodology
- Detailed written report for all transaction parties
- Clear pass/fail interpretation against EPA standards
- Expedited scheduling for tight closing timelines
- Mitigation installation within 1-2 business days (if needed)
- Post-mitigation verification test & documentation
- Mitigation warranty documentation for real estate file
Related reading
- Radon Testing Methods ExplainedUnderstand CRM testing, closed-building conditions, and how to read results.
- Radon Mitigation SystemsHow mitigation works, installation timelines, and our written guarantee.
- For Home BuyersWhat buyers need to know about radon before and after closing.
- For Home SellersHow proactive radon testing and mitigation protects your sale.
- New Construction RadonIndependent testing for newly built homes before closing.
- About Carl Woolwine — ODH #RS579 & #RC362Carl’s credentials, including his Ohio measurement specialist license.
Our Real Estate Radon Process
Transparent, professional, and designed around your family — not around our schedule.
Request & Schedule
Call or contact us online with your closing date. We prioritize accordingly and coordinate access directly with your agent or the listing agent.
48-Hour Test
Carl places a CRM in the lowest livable area. The seller maintains closed-building conditions. Carl retrieves the monitor and analyzes the data.
Report Delivery
You receive a detailed written radon report within 24 hours of monitor pickup — showing the average level, testing conditions, and Carl’s recommendation.
Mitigation if Needed
If results exceed 4.0 pCi/L, Carl provides a free estimate and can install within 1–2 business days with full transaction documentation.
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
Is radon testing required to buy or sell a home in Ohio?
Ohio law doesn’t mandate it, but radon testing has become the de facto standard — especially in Central and Southwest Ohio. Most buyers’ agents now include it as a standard inspection contingency. Sellers who test proactively avoid last-minute negotiation friction.
What happens if the radon test comes back above 4.0 pCi/L?
A high result is solvable — not a deal-killer. Options include the seller installing mitigation before closing, a credit toward mitigation, or a renegotiated purchase price. Carl can work on expedited timelines to keep your transaction on track.
How quickly can you get a radon test done for a closing?
Carl typically schedules within 24–48 hours for most Columbus, Dayton, and Cincinnati locations. The test requires 48 hours minimum, plus 24 hours for report delivery — roughly 3–4 days total. Call directly for extremely tight timelines.
The home I’m buying already has a radon mitigation system. Do I still need to test?
Yes — always. An existing system reduces radon but doesn’t guarantee it stays below 4.0 pCi/L. Fans wear out over time. Get a current test before closing; don’t rely on old results.
As a listing agent, how should I advise sellers on radon?
Test proactively, mitigate if needed, then disclose with documentation. A professionally mitigated home eliminates radon as a negotiating point and prevents closing delays. The combined cost of testing and mitigation ($900–$1,700) is almost always recovered in a cleaner transaction.
Do lenders or FHA/VA loans have radon requirements?
FHA and VA loans don’t specifically require radon testing, but if a radon issue is identified during inspection, lenders may require mitigation before closing. Check with your lender early if radon is a concern.
Can you work directly with both the buyer’s agent and listing agent?
Yes. Carl coordinates with all parties — buyer, seller, both agents, and title company. He understands transaction communication sensitivities and maintains strict professionalism with everyone involved.
Do you offer discounted packages for real estate agents who refer regularly?
Yes. Carl works with many Central and Southwest Ohio agents on an ongoing basis and offers volume pricing for regular referrals. Contact us directly to discuss an arrangement.
Explore more
Every service we offer, and every community we serve, is connected to one mission: protecting Ohio families from radon.
RELATED SERVICES
Radon Testing
Learn about Carl’s testing methods, equipment, and what results mean — including how to interpret numbers for a transaction.
Radon Mitigation
When a test comes back elevated, Carl’s team installs a custom system — often within 1–2 business days — with full transaction documentation.
New Construction Radon
Buying a newly built home? Get an independent baseline test before closing rather than relying on the builder’s passive RRNC assurance.
SERVICE NEAR YOU
Real Estate Radon in Columbus, OH
Active real estate markets in Dublin, New Albany, Hilliard, and Westerville — all in Ohio’s highest-risk radon zone.
Real Estate Radon in Dayton, OH
Centerville, Beavercreek, Kettering, and Springboro — Miami Valley real estate with Ohio’s highest average radon concentrations.
Real Estate Radon in Cincinnati, OH
Mason, West Chester, Lebanon, and Hyde Park — active Cincinnati markets where radon testing is increasingly expected by buyers.
Ready to get started?
We respond within 24 hours. No pressure, no jargon — just honest guidance from Ohio’s radon experts.
Mon–Fri 8am–6pm · Sat 9am–2pm