Radon Mitigation Arcanum OH | Licensed RC202 Pros

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Radon Eliminator provides Radon Mitigation Arcanum OH homeowners, real-estate professionals, and commercial property owners can trust to deliver a defensible result. We hold Ohio Radon Mitigation License RC202, follow EPA-aligned protocols on every job, and build active soil depressurization systems engineered to bring indoor radon below the EPA action level of 4.0 pCi/L — with post-mitigation testing to prove it.

Darke County sits squarely in EPA Radon Zone 1, the highest-risk classification. Ohio Department of Health data has consistently shown homes throughout west-central Ohio, including Arcanum, Greenville, Versailles, and the surrounding Village of Arcanum corridor, testing well above the 4.0 pCi/L threshold. Glacial till soils, limestone bedrock fissures, and the tight construction of newer homes off State Route 49 and US-127 all push radon indoors. This isn't a coastal-Ohio problem — it's a Darke County problem.

We don't sell fans. We sell a permanent system, a clean install, and a documented number under 4.0 pCi/L. Call (937) 884-1075 or request a written quote online.

Most Arcanum homeowners calling us have already phoned two or three competitors. Here's what makes our work different, and why agents from Darke County to Montgomery County refer us by name.

• Ohio License RC202 — stated upfront. Ohio law requires anyone installing a radon mitigation system to hold a state-issued mitigation license. We lead with our number. Many local outfits bury it or work under an expired credential. Ask any contractor for theirs before signing.
• Closing-Date Radon Service. Real-estate deadlines are not an inconvenience to us — they're a productized service. Tell us your closing date and we work backward: install, 48-hour post-mitigation test, certified report to your agent and lender before contingency expiration.
• Clear, written pricing. Most Arcanum single-family installs fall between $1,150 and $1,850, depending on foundation type, suction-point requirements, and exterior routing. We quote in writing. No surprise add-ons at the truck.
• Multi-vertical experience. We mitigate single-family homes, but also apartment complexes, school buildings, daycare facilities, and commercial properties — verticals most local radon shops simply can't handle.
• Two-year system warranty + lifetime workmanship. Our fans carry manufacturer warranties up to 5 years; our installation workmanship is guaranteed for as long as you own the home.

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Our Arcanum service area covers everything from century farmhouses on Hollansburg-Tampico Road to newer subdivisions east of George Rogers Clark Park. Each foundation behaves differently, and we engineer accordingly.

Active Soil Depressurization (ASD) is the EPA-recommended standard, and it's what we install on roughly 95% of Arcanum homes. We core through the slab, seal the suction point, route 3- or 4-inch Schedule 40 PVC to an exterior radon fan above the eave line, and discharge above the roofline per ANSI/AARST SGM-SF-2017. Crawlspaces get a sealed sub-membrane system. Combo foundations get a hybrid approach.

Commercial buildings and multi-family properties carry legal exposure that single-family homes don't. We design multi-fan, multi-point ASD systems for apartment complexes, school buildings, and commercial properties — with engineered drawings, ANSI/AARST CCAH-2020 compliance, and documentation suitable for licensing inspections and ODH submission.

Pre-mitigation diagnostic testing, real-estate transaction testing (48-hour closed-house protocol), and post-mitigation verification. We use continuous radon monitors with hourly logging, tamper alerts, and chain-of-custody documentation accepted by every lender and underwriter we've worked with in Ohio.

Bought a home with a system already installed? We inspect the manometer, verify suction at each point, check fan amp draw, confirm discharge location meets code, and re-test the home. About 30% of the existing systems we inspect in Darke County are either underperforming or non-compliant with current Ohio code.

For time-sensitive transactions and commercial emergencies, we dispatch a licensed technician for same-day or next-day on-site assessment anywhere in Darke, Preble, Montgomery, or Miami County.

Every job follows the same five-step protocol, whether it's a 1,200 sq ft ranch on South Main Street or a 40-unit apartment building.

1. Phone consultation and written quote. We review your test results, foundation type, and timeline. You receive a written, fixed-price quote within 24 hours — usually same day.
2. Pre-install diagnostic. Our licensed technician arrives, performs a sub-slab communication test, identifies optimal suction points, and confirms exterior routing that maintains your home's curb appeal.
3. System installation. Most Arcanum installs complete in 4–8 hours. We core the slab, seal all penetrations with polyurethane sealant, install PVC and the radon fan, and mount a U-tube manometer for ongoing system monitoring.
4. Post-mitigation testing. A 48-hour closed-house test using a continuous monitor verifies levels are below 4.0 pCi/L — the EPA action level. We aim for under 2.0 pCi/L whenever building dynamics allow.
5. Documentation package. You receive the installation report, post-mitigation test results, warranty paperwork, and — for real-estate transactions — everything your agent, buyer, and lender require.

Arcanum sits at roughly 1,020 feet of elevation on the glaciated till plain of west-central Ohio. The combination of fractured limestone bedrock under shallow soil, a high water table along Painter Creek, and the airtight construction of homes built after 1990 creates ideal conditions for radon accumulation. Ohio Department of Health county-level data shows Darke County averaging well above the state mean — and the state mean already exceeds the national average.

We've mitigated homes throughout the 45304 ZIP code, including properties near Arcanum-Butler High School, the historic Wayne Trail neighborhoods, and rural parcels stretching toward Pitsburg and Gordon. We also serve nearby communities: Greenville, Versailles, Union City, New Madison, Bradford, Gettysburg, and Ansonia. If your inspection report came back hot during a transaction at any property between Indiana state line and Brookville, we can be on site quickly.

For home inspectors and real-estate agents working the Darke County market, we maintain a partner program with priority scheduling and a published referral structure. Call our office to enroll.

We're one of the few Ohio radon contractors that publishes price ranges. Hiding pricing wastes everyone's time.

• Standard single-family ASD system: $1,150 – $1,850
• Crawlspace sub-membrane system: $1,650 – $2,800
• Combination foundation (basement + crawl): $1,950 – $3,200
• Real-estate testing (48-hour closed-house, CRM): $145 – $185
• Post-mitigation verification test: included with every install
• Commercial / multi-family / school systems: custom-engineered quote

Financing is available for systems over $1,500. Most jobs qualify for 0% promotional terms through our financing partner.