Radon Mitigation Versailles OH | Licensed RC202 Pros

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If your inspection report came back at 4.2, 6.8, or 14 pCi/L, you're not unlucky — you live in Darke County, which the EPA classifies as Zone 1 (highest potential) for radon. Ohio averages 5.8 pCi/L indoors, nearly 50% higher than the EPA action level of 4.0 pCi/L. In western Ohio's clay-and-limestone soils, elevated radon is the rule, not the exception.

Radon Eliminator is the licensed authority Versailles families, agents, and property managers call when the number on the report is too high and the closing date is too close. We hold Ohio Mitigation License RC202, install systems built to ASTM E2121 and AARST-ANSI standards, and verify the result with a post-mitigation test. No fan-in-a-box upsells. No vague pricing. A documented number under 4.0 pCi/L.

Call (866) 383-4826 for same-week Radon Mitigation in Versailles OH — or request a written quote and timeline online.

Most radon work in the Versailles, Greenville, and Sidney corridor is done by general HVAC subs or out-of-state chains that won't put their Ohio license number on the truck. We do things differently — and we publish the receipts.

• Ohio License RC202 — stated upfront. Every mitigation system we install in Versailles is performed under our active Ohio Department of Health radon mitigation license. Ask any contractor for their RC number before you sign.
• Closing-Date Radon Service. If your purchase contract closes in 10, 14, or 21 days, we build the install and post-mitigation test around your calendar — not ours. We've saved deals from Versailles to Russia to Fort Loramie.
• Guaranteed under 4.0 pCi/L. Every residential install includes a post-mitigation test. If the number isn't below the EPA action level, we re-engineer the system at no charge.
• Multi-vertical depth. We mitigate single-family homes, multi-unit apartments, commercial buildings, and Ohio schools — most local shops only touch houses. If you manage Versailles rental property or a Darke County commercial building, you have a qualified Ohio call.
• Clean, code-compliant installs. PVC routed through the garage or exterior chase, sealed sump covers, manometer mounted at eye level, electrical to NEC. The system looks like it belongs there.
• Transparent, written pricing. No "come out and we'll see." Standard Versailles residential systems are quoted in a single phone call.

The standard Versailles home — slab-on-grade, full basement, or crawlspace — gets a sub-slab depressurization (SSD) system. We core a 5-inch suction point through the slab, seal all penetrations and the sump pit with a gas-tight lid, run schedule-40 PVC up through a closet or garage chase, and mount a quiet inline radon fan (Radonaway RP145, GP501, or HP2200 depending on soil draw) in the attic or on an exterior gable. A U-tube manometer confirms continuous negative pressure. Most Versailles homes finish in 4–6 hours.

Ohio Revised Code requires schools and licensed childcare facilities to act on elevated radon, and apartment owners carry premises liability. We design multi-point active soil depressurization systems for larger Versailles-area footprints — Versailles Schools facilities, Darke County commercial buildings, and apartment complexes along SR-121 and SR-47. Every commercial project includes a diagnostic communication test, engineered drawings, and post-mitigation testing in each occupied zone.

For real-estate transactions we deploy continuous radon monitors (CRMs) — Sun Nuclear 1028 and Corentium Pro units — for a 48-hour test that produces an hour-by-hour graph, tamper detection, and an EPA-aligned protocol report. Charcoal kits get rejected by careful buyers' agents; CRM reports do not. Post-mitigation, we re-test 24 hours after fan startup and again at 30 days to confirm long-term performance.

Bought a Versailles home that already has a radon system but the level is still high? We diagnose dead fans, undersized fans, missed suction points, broken pipe seals, and improperly terminated discharges. Most repairs are completed same-day. We also re-permit and re-document orphaned systems from out-of-business contractors.

Versailles and Greenville-area home inspectors: we run a published referral program with same-week turnaround, co-branded reports, and a flat referral structure. Call the office to enroll.

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This is the process that turns a scary inspection number into a closed transaction and a safer home.

1. Phone diagnostic & written quote (same day). Tell us the pCi/L result, foundation type (basement, slab, crawl), and closing date. You get a flat-rate quote and an install date — usually within the week.
2. On-site pressure & communication test. Before we core a hole, we verify sub-slab airflow to confirm a single suction point will do the job (most Versailles homes) or whether a second point is required.
3. System installation (4–6 hours typical). Suction point cored, sump sealed, PVC routed, fan installed above the living space (never in it — per AARST-ANSI), manometer mounted, electrical tied in, exterior penetrations flashed.
4. Post-mitigation test (48 hours). Continuous radon monitor placed in the lowest livable area. EPA-aligned report delivered to you, your agent, and the buyer.
5. Documentation package. System diagram, fan model and warranty, RC202 license documentation, and the post-mitigation test report — everything title companies and FHA appraisers ask for.

Versailles sits on Wisconsinan glacial till — a mix of clay, silt, and fractured limestone bedrock that traps and channels radon gas straight into basements. We see consistent elevated readings throughout the 45380 ZIP code, including homes near Ward Park, the Versailles Health Care Center area, the older streets around St. Denis Catholic Church, and newer builds north of SR-185 toward Russia and Frenchtown.

Darke County's average indoor radon level exceeds 6 pCi/L in test data reported to the Ohio Department of Health — well above the EPA's 4.0 pCi/L action level. Homes with finished basements (very common in Versailles) often test highest because the lowest livable area is also the area with the greatest soil contact.

We also serve Greenville, Ansonia, Rossburg, Fort Loramie, Minster, New Bremen, Sidney, Piqua, and Troy — typically dispatching to Versailles from our western-Ohio service route. If you're inside a 30-minute drive of downtown Versailles, we can usually be on-site within 2–4 business days, and faster for real-estate deadlines.

Most Versailles single-family homes fall into a predictable price band:

• Standard basement or slab home (single suction point): $1,295 – $1,795 installed, including post-mitigation test.
• Crawlspace with vapor barrier sub-membrane depressurization: $1,795 – $2,495 depending on square footage.
• Multi-point systems (large or finished basements, walkout designs): $2,200 – $3,400.
• Real-estate 48-hour CRM test: Flat fee, scheduled to fit your inspection contingency window.
• Commercial / apartment / school: Engineered proposal after a site walk.

Financing is available for qualified Versailles homeowners, and most systems pay back in resale value alone — homes with documented mitigation systems and a post-test under 4.0 pCi/L sell with one less contingency on the table. That makes professional Radon Mitigation Versailles OH one of the highest-ROI repairs on any inspection report.