Commercial Radon Services Big Island OH | Licensed RC202

Ohio sits on some of the highest radon levels in the United States. The Ohio Department of Health classifies all 88 counties — including Marion County and the Big Island area — as Zone 1, the EPA's highest-risk designation. For commercial property owners, that's not a trivia point. It's a liability exposure.

Commercial Radon Services Big Island OH isn't a side hustle for us. Radon Eliminator holds Ohio Mitigation License RC202, and our entire operation is built around one thing: accurate, EPA-aligned radon measurement and permanent, code-compliant mitigation for buildings that have legal occupants, tenants, students, or buyers depending on them.

Most local radon contractors are HVAC companies or basement waterproofers who added radon as a line item. They aren't structured to handle multi-zone commercial buildings, multi-family complexes, or schools — and they can't move fast enough to save a closing. We are, and we can.

• Licensed Ohio specialist (RC202) — not a generalist. Radon is what we do.
• Real-estate transaction speed — 48-hour testing turnaround and mitigation timed to your closing date, not our calendar.
• Multi-vertical depth — office buildings, retail, schools, apartments, assisted living, and industrial.
• Transparent pricing — written scopes and flat-rate quotes. No "call for a price" runaround.
• Code-compliant systems — every install meets ANSI/AARST CC-1000 for commercial buildings.

Big Island sits in a part of Ohio where uranium-bearing shale and glacial till push radon into basements, slab-on-grade buildings, and crawl spaces at concerning rates. The EPA action level is 4.0 pCi/L. We routinely document Big Island commercial buildings testing between 6 and 18 pCi/L before mitigation. After our systems are commissioned, we deliver post-mitigation results below 2.0 pCi/L — and we put that in writing.

Our commercial scope is broader than what most radon contractors will quote, because we're built for it. Whether you own a 6,000 sq. ft. office on Marion-Williamsport Road, a 48-unit apartment complex, or a K-12 school facility, the work is governed by ANSI/AARST measurement and mitigation standards — and we execute to them.

We deploy continuous radon monitors (CRMs) and long-term alpha-track detectors per ANSI/AARST MAH-2019 and MALB-2014 protocols. For real-estate transactions, we run 48-hour CRM tests with hour-by-hour data logging — defensible results a buyer's agent and underwriter will accept. For schools and apartments, we follow MALB sampling density: every ground-contact room, every frequently occupied space.

ASD is the gold-standard mitigation method for commercial slabs. We core the slab, install sealed suction points connected to a sized commercial radon fan (typically RP260 or RP380 class for larger footprints), and exhaust above the roofline. Every system includes a U-tube manometer, labeled service disconnect, and post-mitigation verification testing.

HUD now requires radon testing for many multifamily transactions under Notice H 2013-25. We handle the full compliance package: ground-floor unit testing, mitigation design for shared foundations, post-mitigation diagnostics, and the documentation your lender or HUD reviewer needs to clear the file.

The Ohio Department of Health and EPA both recommend radon testing in every school. We design phased testing and mitigation programs that work around the academic calendar, with summer-break installation windows and board-meeting-ready reporting.

The inspector's report flagged 4.8 pCi/L and you close in 10 days. That's our specialty. We can be on-site for testing within 48 hours, have a mitigation system installed within 5–7 business days, and deliver post-mitigation clearance results in time to send to the title company. We won't blow up your closing.

Commercial radon work has more moving parts than residential. Here's how we run it — the same way every time, whether you're in Big Island, the surrounding Marion County area, or one of the other Ohio markets we serve.

We review building drawings, foundation type, HVAC zoning, and occupancy. For real-estate deals, we get the closing date first and back-schedule from there. We then write a test plan that meets ANSI/AARST density requirements — not the bare minimum.

Continuous radon monitors are placed in every required location, calibrated, and data-logged. Reports include hourly pCi/L readings, average concentration, tamper indication, and a clear pass/fail against the 4.0 pCi/L EPA action level. Results in your inbox within 24 hours of pickup.

If results require mitigation, you get a written proposal with system layout, fan specification, exhaust routing, and a flat-rate price. No hourly billing surprises. No "we'll figure it out on site."

Our crews install to ANSI/AARST CC-1000 for commercial mitigation. That means proper suction-point sizing, sealed slab penetrations, PVC sized for the building footprint, fan placement outside the building envelope, exhaust 10 feet above grade and away from openings, and visible system monitoring.

Within 24 hours to 30 days of commissioning (per protocol and your timeline), we re-test to confirm levels are below the EPA action level — and ideally below 2.0 pCi/L. You get a signed verification report suitable for buyers, lenders, HUD, school boards, or insurance carriers.

Big Island sits in Marion County on the edge of Ohio's central glacial plain, between Marion to the east and the Scioto River drainage to the south. The local geology — Ohio Shale, Olentangy Shale, and overlying glacial till — is a textbook radon source. Uranium concentrations in these formations release radon gas that migrates upward into building foundations through soil gas pressure differentials.

What that means in practice: commercial buildings along State Route 95, properties near the Big Island Wildlife Area, and older agricultural and industrial structures throughout the township tend to test elevated. Slab-on-grade buildings aren't immune — we've documented post-tensioned slab buildings in this region testing above 10 pCi/L because cracks, expansion joints, and utility penetrations let soil gas in.

We serve commercial clients throughout Big Island Township and the surrounding Marion County area, and we coordinate with Ohio commercial real-estate brokers, property managers, and home inspectors across central Ohio. As Ohio's professional Commercial Radon Services Big Island OH provider, we bring the same RC202-licensed crew to a 200,000 sq. ft. distribution facility that we bring to a four-unit duplex. The standard doesn't change.

Looking for the best Commercial Radon Services Big Island property managers and asset owners rely on? It's a short list in this market — and the criteria are simple: published Ohio license number, written flat-rate quotes, ANSI/AARST-compliant installations, and the ability to close on a real-estate deadline. We meet all four.

We publish pricing ranges because hiding them wastes your time and ours. Final cost depends on building size, foundation type, and number of suction points required.

• Commercial radon testing (CRM, 48-hour): Starting at $195 for small commercial spaces; multi-zone and multi-building tests quoted per scope.
• Apartment / multifamily testing: Per-unit pricing decreases with volume — typically $35–$75 per ground-contact unit on larger properties.
• Single-point commercial mitigation system: Typically $1,800–$3,500 installed, including commercial-grade fan, monitoring, and post-mitigation verification.
• Multi-point and large-footprint systems: Quoted by site visit. Most fall in the $4,500–$12,000 range.
• School and large institutional mitigation: Engineered scope; written proposals after walk-through.

Financing is available for qualifying commercial projects. Every system carries a workmanship warranty, and the radon fan itself carries a manufacturer warranty of 5 years.

We run a dedicated referral program for Ohio home inspectors and commercial inspectors. If radon comes up in your report and you need a licensed mitigator who won't embarrass you in front of your client, send them to us. Ask about our inspector Special Offer — it includes priority scheduling, co-branded result reporting, and a flat referral structure that's been live since we opened.