Radon Mitigation Cadiz OH | Licensed RC202 | Fast Install

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Cadiz, Ohio sits squarely inside EPA Radon Zone 1 — the highest-risk category, where indoor radon levels are predicted to exceed 4.0 pCi/L. Harrison County's clay-heavy soils, fractured shale bedrock, and the region's mining history create exactly the soil-gas conditions that push radon into basements, crawl spaces, and slab-on-grade foundations. If you live near US-250, off Cadiz-Dennison Road, or on one of the older homes around Charleston Street, your house is statistically more likely than the national average to have a radon problem.

Radon Eliminator is an Ohio-licensed radon mitigation contractor — License RC202 — and Cadiz is squarely inside the service territory we run out of our Akron operations base. We don't sell fans. We sell a code-compliant system, a clean install, a post-mitigation test, and a documented number under 4.0 pCi/L that your real-estate attorney, school board, or property manager can put in a file and forget about.

For Radon Mitigation Cadiz OH work, here's what separates us from the part-time operators and out-of-state chains:

• Ohio License RC202 — stated upfront, on every quote, on every permit. Most competitors bury or omit theirs.
• Real-estate-deadline specialist — we time testing and mitigation to your closing date, not our convenience.
• EPA-aligned protocols — testing follows EPA 402-R-92-003 and AARST-NRPP standards. The results hold up.
• Multi-vertical capability — single-family homes, apartment complexes, commercial buildings, and schools across Harrison County and the surrounding Jefferson, Belmont, and Tuscarawas counties.
• Transparent pricing — most Cadiz residential mitigation systems land between $1,200 and $1,800, with commercial and multi-unit quoted on-site. You'll get a number, not a runaround.

Call (330) 998-1736 for a same-day quote, or scroll down to request a written estimate.

Every property is different. A 1940s farmhouse on Lincoln Avenue with a stone foundation needs a different mitigation strategy than a slab-on-grade ranch off OH-9 or a four-unit rental near Cadiz Elementary. Below are the core services we deliver across the Cadiz area.

ASD is the EPA-recommended gold standard for permanent radon reduction and the system we install in roughly 90% of Cadiz homes. We core through the basement slab or crawl-space membrane, install a sealed suction point, run schedule-40 PVC vent piping to roof level, and mount a properly sized radon fan — typically a Radonaway RP145, GP201, or GP501 depending on soil permeability and pressure-field extension testing. The system pulls soil gas from beneath the foundation and exhausts it safely above the roofline, well away from windows and HVAC intakes per code.

If your home inspection in Cadiz came back at 4.2, 7.8, or 22 pCi/L and you're 10 days from closing, this is the service you need. We prioritize real-estate jobs: short-term test within 48–72 hours, mitigation install within 5–7 business days of contract signing, and post-mitigation clearance test results delivered as a signed PDF you can forward directly to your lender, attorney, or agent. We work directly with Harrison County title companies and home inspectors to keep the deal alive.

Ohio Revised Code and federal guidance hold commercial property owners, multi-family landlords, and school districts responsible for indoor air quality. We design and install large-scale mitigation systems for apartment complexes around Cadiz, daycare facilities, schools in the Harrison Hills City School District footprint, and commercial properties along OH-22 and Lincoln Highway. These projects include multi-suction-point design, manometer monitoring at every riser, and a documented commissioning report.

We deploy continuous radon monitors (CRMs) and EPA-approved passive devices for both pre-mitigation diagnostics and post-install clearance. Every mitigation we install includes a free 48-hour follow-up test confirming levels are below the EPA action threshold of 4.0 pCi/L. If we don't hit that number, we return and modify the system at no additional cost. That guarantee is in writing on every contract.

Many older Cadiz homes — particularly those built before 1970 in neighborhoods around Jamison Avenue and Market Street — have dirt-floor crawl spaces. These require a 6-mil reinforced vapor barrier sealed to the foundation walls with a suction point integrated into the membrane. We do this work with proper respirators and confined-space protocols, and we leave the crawl space dryer, cleaner, and radon-free.

Photo by AI Generated (Grok Imagine)

Here's exactly what happens from your first phone call to a signed clearance report. No surprises, no scope creep.

1. Phone consultation & quote (Day 1): Call us at (330) 998-1736. We'll ask for your address, your test result number if you have one, and your timeline. Most Cadiz quotes are issued the same day.
2. On-site diagnostic visit (Day 2–4): A licensed technician inspects your foundation, identifies the best suction location, evaluates electrical access, and confirms the exterior or interior vent stack routing.
3. Installation (Day 5–7, typically a single day on-site): Our crew arrives in a marked truck, lays drop cloths, cores the slab, installs piping, mounts the fan, wires it to a dedicated circuit, seals all penetrations, and installs a U-tube manometer for ongoing performance verification.
4. Post-mitigation testing (Day 8–10): We deploy a continuous radon monitor for 48 hours after a 24-hour closed-house equilibration period. Per EPA protocol.
5. Documentation & warranty (Day 11): You receive a PDF clearance report showing pre- and post-mitigation pCi/L levels, system specifications, fan model, warranty terms (5 years on the fan, lifetime on the system design), and our RC202 license number for your records.

Cadiz isn't a random pin on a service map for us. Harrison County is part of what Ohio Department of Health data identifies as the state's highest-radon corridor — a band running through eastern and central Ohio where average indoor radon levels exceed the national average by a wide margin. Ohio has one of the highest radon exposure levels in the United States, and Harrison County specifically has tested at averages well above 4.0 pCi/L in residential surveys.

We've installed mitigation systems on homes from the historic district near the Harrison County Courthouse down through the residential streets around Cadiz City Park, and out to the rural properties along Cadiz-Piedmont Road and Tappan Lake. We know the soil conditions you're working with: shallow shale, abandoned mine subsidence zones, and clay layers that trap and pressurize soil gas. We've also worked on properties tied to the Utica and Marcellus shale activity in the region — drilling and fracking don't cause radon, but the underlying geology that makes the shale productive is the same geology that produces elevated radon.

For real-estate professionals: we coordinate directly with home inspectors, agents at the major brokerages serving Harrison, Jefferson, and Belmont counties, and the title and escrow companies handling closings in Cadiz, St. Clairsville, and Steubenville. Our home inspector partner program includes a published referral structure — ask your inspector if they're enrolled, or have them call us.

We also serve nearby communities including Hopedale, Jewett, Scio, New Athens, Bowerston, Freeport, and the larger markets in Canton, Columbus, and Cleveland. If your inspector or agent has referred you here from outside Cadiz proper, we likely already cover your area.

One of the most common complaints we hear: "I called three companies and none of them would give me a straight price." Here's our straight answer.

• Standard residential exterior system (basement, single suction point): $1,200–$1,500
• Interior routed system (vent through garage or interior chase): $1,500–$1,800
• Crawl space with sub-membrane depressurization: $1,800–$2,600
• Combination basement + crawl space: $2,200–$3,200
• Short-term real-estate radon test (48-hour CRM): $150–$195
• Commercial, multi-family, and school systems: Quoted on-site after diagnostic visit

Financing is available on installations over $1,500 for qualified homeowners. Most jobs are also reimbursable through a seller credit at closing — we'll provide the documentation your title company needs.