Radon Testing Worthington OH | RC202 Licensed | 48-Hr Results

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If you're searching for Radon Testing Worthington OH, you're almost certainly in one of three situations: a home inspector handed you a reading above 4.0 pCi/L, a buyer's agent is asking for a radon test before closing, or you own property in Worthington and want to confirm your levels are safe. Radon Eliminator handles all three — and we do it under Ohio Mitigation License RC202, with EPA-aligned protocols and turnaround windows that match real-estate timelines, not contractor calendars.

Worthington sits in Franklin County, an EPA Zone 1 county — the highest-risk classification, where indoor radon screening averages exceed 4.0 pCi/L. That means homes in Old Worthington, Colonial Hills, Worthington Hills, and the neighborhoods around the Olentangy River are statistically more likely to test high than homes in lower-zone parts of the country. This isn't fear-mongering. It's the data Ohio Department of Health publishes every year, and it's why radon testing in Worthington isn't optional during a real-estate transaction — it's expected.

We test residential homes, commercial buildings, apartment complexes, and schools across central Ohio. If institutional clients trust our readings, your basement test is straightforward work.

Call (614) 689-9700 to schedule testing, or request a quote online. Most Worthington tests are placed within 48 hours.

There are a handful of companies offering radon testing in central Ohio. Here's what separates us — and why realtors, inspectors, and Worthington homeowners send us the deals that have to close on time.

• Ohio License RC202 — Lead with it, not buried in a footer. Ohio law requires a licensed mitigation professional for any system install, and you should expect the same standards from whoever runs your test. Many competitors don't list their license number anywhere on their site.
• Closing-deadline turnaround — Standard continuous radon monitor (CRM) tests run 48 hours. We post placement within 1–2 business days of your call, retrieve the device on schedule, and deliver the signed report the same day pickup. That's a 3–4 day total window from call to results.
• EPA-aligned protocols — Closed-house conditions, proper device placement (lowest livable level, 20 inches off the floor, away from drafts and exterior walls), and tamper-evident monitors. Reports include hourly pCi/L data, not just an average — which matters if a buyer's agent challenges the test.
• One company, full chain — If your test comes back at 4.0 pCi/L or higher, we install a permanent, code-compliant mitigation system. No handoffs, no second contractor, no missed deadlines. Most Worthington mitigation installs are completed within 5–7 business days of the test result.
• Multi-vertical proof — We test and mitigate Ohio schools, apartment buildings, and commercial properties. The same crew handling your Worthington split-level handles 200-unit complexes in Columbus.

This is the bulk of what we do in Worthington. A buyer's agent requests a radon test as part of the inspection contingency. We deploy a continuous radon monitor for 48 hours under closed-house conditions, then deliver a signed, dated report acceptable to lenders, agents, and title companies. If the result is at or above 4.0 pCi/L, EPA recommends mitigation — and we can quote and schedule that mitigation immediately so the deal stays on track.

Smart sellers in Worthington Hills and Colonial Hills test before listing. Why: Ohio's residential property disclosure form asks about known radon test results. Testing pre-listing gives you control over the timeline. If levels are high, you mitigate on your schedule (and at a fair price) rather than under pressure during a 7-day inspection window with a nervous buyer.

Not buying or selling — just want to know? Worthington homes built before the early 1990s rarely had radon-resistant construction features, and finished basements (common in this area) increase occupied time in the highest-risk zone of the house. A 48-hour CRM test gives you a defensible number. Long-term alpha-track testing (90+ days) is available for homeowners who want a fuller seasonal picture.

Multi-unit and institutional properties carry liability that single-family homes don't. We follow ANSI/AARST MAMF and MALB protocols for multifamily and large buildings, place the correct number of devices per square footage, and produce documentation that satisfies property managers, school boards, and insurance carriers.

After any mitigation system install — ours or someone else's — a follow-up test confirms the system dropped levels below 4.0 pCi/L. If a previous contractor did a cheap fan swap and the re-test failed, we'll diagnose the system, fix what's broken, and verify it works.

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Four steps, no surprises. Most Worthington customers go from first call to signed report in under a week.

1. Schedule and quote (Day 0). Call (614) 689-9700 or submit the online form. We confirm property type, square footage, and closing date if applicable. You get a flat-rate quote — no add-ons, no trip charges inside the I-270 belt.
2. Device placement (Day 1–2). A licensed technician places a calibrated continuous radon monitor at the lowest livable level. We document closed-house conditions, photograph placement, and leave clear instructions for occupants.
3. 48-hour monitoring (Day 2–4). The CRM logs hourly readings. We're not relying on a charcoal canister that gives you a single average — you get hour-by-hour data showing how radon levels fluctuated during the test window.
4. Pickup and signed report (Day 4–5). Technician retrieves the device, downloads data, and delivers a PDF report the same day. Reports include the average pCi/L, max and min hourly readings, closed-house compliance notes, and EPA action-level guidance.
5. Mitigation quote, if needed (same day). If your result is at or above 4.0 pCi/L, you get a written mitigation proposal within 24 hours — including system layout, exterior routing, fan model, warranty, and install date.

We've placed monitors in nearly every Worthington neighborhood. A few patterns worth knowing:

• Old Worthington — Pre-1950 homes around High Street and the Village Green often have stone or block foundations with unsealed sump pits. These properties tend to test in the 4–8 pCi/L range and respond well to standard sub-slab depressurization.
• Colonial Hills and Rush Creek — Mid-century slab-and-crawlspace combinations are common here. Mixed foundations require careful diagnostic work; a system that only addresses the slab will miss radon entering through the crawl.
• Worthington Hills and Worthington Estates — Larger split-levels and two-stories with finished basements. Higher occupied time in the lowest level means even moderate pCi/L numbers translate to higher exposure. We see plenty of 5–10 pCi/L readings here.
• Worthington Green and newer subdivisions north of I-270 — Post-1995 homes may have passive radon-resistant rough-ins. If you see a capped pipe in the basement going up through the roof, that's a passive system — and it can usually be activated with a properly sized fan rather than a full new install.

Because Franklin County is EPA Zone 1, we treat every Worthington home as a likely-positive until the data says otherwise. We've tested homes a block apart with readings of 2.1 pCi/L and 9.4 pCi/L — soil conditions and foundation details matter more than neighborhood averages.

Straightforward pricing, because deal anxiety is bad enough without a fuzzy estimate.

• Standard residential radon test (48-hour CRM): $150–$200 flat rate. Includes placement, monitoring, pickup, and signed PDF report. No trip charges inside Franklin County.
• Real-estate transaction test with expedited reporting: Same price, same turnaround — expedited reporting is standard, not an upcharge.
• Long-term alpha-track test (90+ days): $50–$100. Best for homeowners who want a year-round picture, not a closing-window snapshot.
• Commercial / multifamily / school testing: Quoted by square footage and number of devices required under ANSI/AARST protocols.
• Post-mitigation verification test: Included free when we install your mitigation system. $125 standalone if testing a system another contractor installed.

If your test result triggers mitigation, most Worthington single-family installations run $1,200–$1,800 for a standard exterior sub-slab depressurization system with a code-compliant fan, manometer, sealed sump, and labeled discharge stack — backed by a written warranty on the system and the post-mitigation re-test.

If you're a Worthington-area agent or inspector reading this, you already know the problem: a high radon number can stall a closing or kill a deal. We built our referral lane specifically for you.

• Direct scheduling line — no general queue.
• Same-week testing on transaction properties.
• Written mitigation quotes within 24 hours of a positive result.
• Mitigation systems installed within 5–7 business days when closing dates demand it.
• A named Inspector Referral Program with transparent terms — ask us about it directly.

We're not interested in being the cheapest. We're interested in being the company you can hand a deal to and stop worrying about.