Radon Eliminator provides Radon Mitigation in Columbus, OH. Ohio RC202-licensed radon mitigation in Columbus. Call (614) 333-0233 for a free consultation.

Last updated: June 2026

Columbus's RC202-Licensed Radon Mitigation Authority

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If your home inspection just came back at 4.2, 5.8, or 9.1 pCi/L, you don't need a scare campaign — you need a licensed professional who can install a permanent, code-compliant fix before your closing date slips. Radon Eliminator is Ohio's RC202-licensed radon mitigation contractor, and we handle Radon Mitigation Columbus OH projects every week — from Clintonville bungalows to Dublin new builds to multi-family properties off I-270.

Franklin County sits in EPA Radon Zone 1, the highest-risk designation. The Ohio Department of Health's data shows Columbus-area homes routinely test above the EPA's 4.0 pCi/L action level — particularly in older neighborhoods with limestone-rich soil like German Village, Upper Arlington, and Worthington. That's not a reason to panic. It's a reason to hire a licensed mitigator who installs systems that actually drop your number below 2.0 pCi/L and stay there.

We work directly with home inspectors, listing agents, buyer's agents, and title companies across central Ohio. When a deal is on the clock, we move on the clock. Call (614) 333-0233 for a same-day quote.

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Why Columbus Homeowners and Realtors Choose Radon Eliminator

Most radon companies bury their license number. We lead with ours: Ohio Mitigation License RC202. Here is what that license — and twenty-plus years of central Ohio installs — gets you:

  • Closing-deadline turnaround: Most Columbus mitigation systems are installed within 5–7 days of your signed proposal, with post-mitigation testing started the same day the system powers on.
  • Transparent, flat-rate pricing: Standard residential mitigation in Columbus runs $1,295–$1,895 for a typical sub-slab system. No surprise upcharges mid-install. You get the number in writing before we show up.
  • Multi-vertical credibility: We mitigate Ohio schools, apartment complexes, and commercial buildings. The same crews and engineering standards that satisfy a school district's compliance review handle your basement.
  • Aesthetic installation standards: We route exhaust stacks through garages, utility chases, or rear elevations whenever possible. No ugly white pipe across the front of your house unless physics demands it — and we'll tell you up front if it does.
  • Guaranteed post-mitigation results: Every system we install is warrantied to bring radon below 4.0 pCi/L. If it doesn't, we modify it at no charge until it does.

That combination — Ohio license, real-estate-speed scheduling, and a written results guarantee — is why we're the best Radon Mitigation Columbus homeowners and realtors recommend after their first transaction with us.

Our Radon Mitigation Services in Columbus

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We are a single-focus company. Radon testing and radon mitigation — nothing else. That focus is why our professional Radon Mitigation Columbus OH installations consistently outperform general-contractor side projects.

Pre-Sale and Real Estate Radon Testing

EPA-aligned 48-hour closed-house testing using calibrated continuous radon monitors (CRMs). Results delivered same day, formatted for lender, inspector, and Ohio disclosure requirements. Ideal when a buyer's agent has requested radon results before an inspection contingency expires.

Sub-Slab Depressurization (Active Soil Depressurization)

The gold-standard system for Columbus basements and slab-on-grade homes. We core through the slab, install a sealed suction pit, run schedule-40 PVC to a roof-line exhaust, and mount a sealed radon fan (RP145, RP265, or HP2200 depending on your soil permeability). System manometer mounted at eye level. This is the system the EPA recommends and the system that consistently pulls Columbus homes from 8+ pCi/L down to under 1.5.

Crawlspace Encapsulation and Sub-Membrane Systems

Many older Columbus homes — particularly in Clintonville, Old North, and Bexley — have crawlspaces or partial basements. We install 6-mil reinforced vapor barrier with sealed seams and tie it to an active depressurization fan. Doubles as moisture control, which Franklin County's clay soils make worthwhile on its own.

Commercial, Apartment, and School Mitigation

Large-building radon work requires engineered designs, multi-suction-point systems, and ongoing monitoring documentation. We handle multi-family properties, daycare facilities, charter schools, and commercial buildings throughout central Ohio. Property managers and facilities directors get a single point of contact and complete compliance documentation.

Post-Mitigation Verification Testing

Every system we install gets a 48-hour post-mitigation test before we consider the job complete. Required by Ohio code, required by lenders, and required by us. If your number isn't below 4.0 pCi/L, we adjust the system at no charge.

Our Radon Mitigation Process — From Call to Clear Re-Test

Here is exactly what happens when you book Radon Mitigation services Columbus OH with us. No mystery, no surprises.

  1. Day 1 — Free Phone Consultation and Quote. Call (614) 333-0233 with your initial test results and basic home details (basement type, square footage, slab vs. crawlspace). We give you a flat-rate quote on the call.
  2. Day 2–3 — On-Site Diagnostic Visit (if needed). For complex layouts, our RC202-licensed designer walks the property, identifies suction-point location, and finalizes the system route. Most standard homes skip this step.
  3. Day 4–7 — System Installation. One-day install for the majority of Columbus homes. Crew arrives between 8–9 AM, work is typically complete by 3–4 PM. We protect floors, clean up the work area, and walk you through manometer operation before we leave.
  4. Day 7–10 — Post-Mitigation Test. 48-hour CRM test confirms levels are below 4.0 pCi/L (typically we pull homes to under 1.5). Results documented for your real-estate transaction, lender, or records.
  5. Ongoing — Lifetime Customer Support. Fans are warrantied 5 years. Labor is warrantied. If your re-test ever shows elevated levels, we come back.

Local Expertise: Radon Across Columbus Neighborhoods

Columbus geology isn't uniform, and neither is its radon. We've installed thousands of systems across Franklin, Delaware, Fairfield, and Licking counties, and we know which neighborhoods produce which problems.

  • Upper Arlington, Marble Cliff, Grandview Heights: Older homes with stone foundations and partial basements. Common readings between 5–12 pCi/L. Sub-slab plus block-wall depressurization is often the right combo.
  • Dublin, Powell, New Albany: Newer construction with passive rough-ins already in place. Many of these jobs are simply activating the existing stack with the correct fan — faster and less expensive.
  • Clintonville, Beechwold, Old North: Crawlspaces, partial basements, and additions stacked together. These take design work but are bread-and-butter for our crews.
  • German Village, Italian Village, Schumacher Place: Tight lots, brick exteriors, and historic district aesthetic concerns. We route systems to be invisible from the street.
  • Hilliard, Westerville, Gahanna, Pickerington: Suburban slab-on-grade and finished basements. Standard sub-slab systems with interior chase routing through a closet or utility room.
  • Worthington and Delaware County: Higher average readings due to underlying carbonate bedrock. Plan on a slightly larger fan and verify with post-mitigation testing.

We serve every ZIP code from 43004 to 43240, plus surrounding communities — Reynoldsburg, Grove City, Whitehall, Bexley, Pataskala, and Lewis Center. Looking for Radon Mitigation near me in any of these areas? You're in our daily route.

Pricing — What Radon Mitigation Costs in Columbus

Most affordable Radon Mitigation Columbus projects fall into one of three pricing tiers, and we publish them openly because guessing games waste everyone's time:

  • $1,295 – $1,495: Standard sub-slab system, basement or slab-on-grade, single suction point, garage or rear-exterior fan location.
  • $1,595 – $1,895: Larger homes, multiple suction points, crawlspace component, or interior chase routing for aesthetics.
  • $1,995+: Complex layouts, finished basements requiring custom routing, drain-tile depressurization, or commercial-scale work (quoted individually).

Financing is available through our partner lender — most homeowners qualify for 0% interest for 12 months. Real-estate closings often roll mitigation cost into the transaction directly; we coordinate with your title company.

For Home Inspectors and Realtors — Our Referral Program

If you're a home inspector or licensed agent in central Ohio, you know how often radon kills momentum on a deal. Our referral partners get:

  • Same-day quoting for your clients
  • Priority scheduling inside closing windows
  • A named contact, not a call center
  • Co-branded leave-behind materials
  • A Special Offer program for repeat referrers

Contact us to be added to the referral roster — it takes about ten minutes and pays back the first time you have a 6.0 pCi/L surprise on a Tuesday with a Friday closing.

Frequently Asked Questions About Radon Mitigation in Columbus

How much does radon mitigation cost in Columbus?

Most Columbus homes fall between $1,295 and $1,895 for a complete, code-compliant sub-slab depressurization system installed by an RC202-licensed mitigator. Complex layouts, crawlspaces, or commercial buildings price individually. We quote flat-rate on the phone — no on-site sales pitch.

What is the best radon mitigation company in Columbus?

Look for three things: a current Ohio RC202 mitigation license, a written results guarantee below 4.0 pCi/L, and published pricing. Radon Eliminator meets all three. We've been the top Radon Mitigation Columbus homeowners and realtors choose for transaction-speed installs and permanent results.

How do I choose a radon mitigation provider in Columbus?

Verify their Ohio mitigation license number (it should start with RC). Ask whether they perform post-mitigation testing. Ask how the system will look on the exterior of your home. Ask about fan and labor warranties. If any of those answers are vague, keep calling.

What should I look for in radon mitigation services?

A sealed suction pit, schedule-40 PVC piping (not flex duct), a properly sized sealed radon fan mounted outside conditioned space, a roof-line exhaust above the eave, a visible manometer, and a written post-mitigation test. Skip anyone offering a 'fan in the basement' shortcut — those fail re-tests.

How long does radon mitigation take?

The installation itself is typically one workday, 6–8 hours. From signed proposal to verified clear post-test, plan on 5–10 days. We routinely meet 7-day real-estate closing windows in Columbus.

Is radon mitigation worth the investment?

Yes — and the EPA, Surgeon General, and Ohio Department of Health all agree. Radon is the second-leading cause of lung cancer in the U.S. Beyond health, a working mitigation system is a documented asset at resale and removes radon as a deal contingency in Ohio's disclosure-driven real-estate market.

Is 4.2 pCi/L actually dangerous?

4.0 pCi/L is the EPA action level — meaning the EPA recommends mitigation at or above that number. 4.2 isn't an emergency, but it's above the line. Anything above 2.0 pCi/L is also worth considering, particularly in a home with children or long-term occupants.

Will the mitigation pipe be visible on the front of my house?

Almost never. We route through garages, utility chases, or rear elevations on the vast majority of Columbus installs. If physics forces a front-elevation route on a specific home, we tell you before we start and discuss options.

Schedule Your Columbus Radon Mitigation Today

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Whether you're staring at a high inspection number with a closing date looming, or you're a property manager working through compliance, we'll get you a quote today and a clean post-test next week. Call (614) 333-0233 or request a written quote online. RC202-licensed. EPA-aligned. Built to pass the re-test.

Request Your Free Quote  |  Schedule Radon Testing  |  Realtor & Inspector Referral Program

Find Radon Eliminator Near Columbus, OH

Frequently Asked Questions About Radon Mitigation in Columbus

How much does radon mitigation cost in Columbus?
Most Columbus homes fall between $1,295 and $1,895 for a complete, code-compliant sub-slab depressurization system installed by an RC202-licensed mitigator. We quote flat-rate over the phone — no surprise upcharges.
What is the best radon mitigation company in Columbus?
Look for a current Ohio RC202 mitigation license, a written results guarantee below 4.0 pCi/L, and published pricing. Radon Eliminator meets all three and is the top-referred radon mitigation contractor in central Ohio.
How do I choose a radon mitigation provider in Columbus?
Verify their Ohio mitigation license number, ask whether they perform post-mitigation testing, confirm fan and labor warranties, and ask about exterior aesthetics. Any vague answer is a red flag.
What should I look for in radon mitigation services?
Sealed suction pit, schedule-40 PVC, exterior-mounted sealed radon fan, roof-line exhaust, visible manometer, and a written post-mitigation test confirming levels below 4.0 pCi/L.
How long does radon mitigation take?
Installation is typically one workday. From signed proposal to verified clear re-test, plan on 5–10 days. We routinely meet 7-day real-estate closing windows.
Is radon mitigation worth the investment?
Yes. Radon is the second-leading cause of lung cancer in the U.S., and a working mitigation system is a documented asset at resale that removes radon as a deal contingency under Ohio disclosure law.

Get a Flat-Rate Radon Mitigation Quote for Your Columbus Home Today

RC202-licensed. EPA-aligned. Installed fast enough to close on time. Call now for a same-day quote.

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Radon Eliminator Near Columbus

Visit our nearest location or call us at 330-622-0434 for service in Columbus.