Radon Mitigation Delaware OH | Licensed RC202 Pros

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Delaware County sits in EPA Radon Zone 1 — the highest-risk designation in the country. Average indoor radon readings in this part of central Ohio routinely test between 4.0 and 8.0 pCi/L, well above the EPA action level. That's not a scare tactic; it's the soil geology under your basement.

Radon Mitigation in Delaware OH is what we do every day. Radon Eliminator holds Ohio Mitigation License RC202 — the credential the Ohio Department of Health requires for anyone installing a mitigation system in this state. We test using EPA-aligned protocols, we install systems that pass post-mitigation re-tests on the first try, and we schedule around real-estate closing deadlines, not contractor calendars.

Whether you're a homeowner on Sandusky Street with a 5.2 pCi/L reading, a buyer's agent in Polaris trying to save a closing, or a property manager on US-23 responsible for an apartment building, we treat radon as what it is: a solvable problem with a permanent fix.

• Ohio RC202 licensed — verifiable with the Ohio Department of Health
• 48-hour testing turnaround on real-estate contingency timelines
• Same-week mitigation installs when a closing is on the line
• Permanent, code-compliant systems — not fan-swap shortcuts
• Trusted by Ohio schools, apartment owners, and commercial properties — the same engineering on your home

Call (330) 836-1186 for a same-day quote or request a written estimate online.

We don't offer a generic checklist. Every mitigation system is designed for the specific home — basement, slab, crawlspace, or combination — and every install is sealed, labeled, and documented for resale.

We run 48-hour continuous radon monitor tests that meet EPA real-estate transaction protocols. You get a written report with hourly readings, average pCi/L, and tamper data — the documentation Delaware-area title companies and lenders expect. Long-term alpha-track testing is available for homeowners who want a full-season average rather than a snapshot.

This is the gold-standard mitigation method for the typical Delaware home with a poured basement or slab. We core a suction point, seal the slab, run schedule-40 PVC vent piping to a roof-line discharge, and install a sealed inline radon fan rated for Ohio winters. Most ASD installs drop indoor radon from 8–12 pCi/L down to under 2.0 pCi/L.

Older homes near downtown Delaware and out toward Ostrander often have dirt or partial crawlspaces. We install a sealed 6-mil reinforced vapor barrier, mechanically fasten it to the foundation walls, and pull radon-bearing soil gas out from beneath the membrane. The bonus: drier crawlspace, lower humidity, fewer mold complaints.

We design and install mitigation for apartment complexes, schools, daycare facilities, and commercial buildings across Delaware County. These projects involve ANSI/AARST CC-1000 commercial standards, multiple suction points, and engineered fan sizing. If schools in Ohio trust our work, a 2,400 sq ft ranch in Delaware is straightforward.

One of the most common worries we hear: "Is the pipe going to look ugly on the front of my house?" Almost never. We route through garages, utility chases, and rear elevations whenever the home allows. Real-estate professionals appreciate that our installs photograph well in listing photos.

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Straight numbers — no "call for pricing" runaround:

• Standard residential ASD system: $1,395 – $1,895 installed
• Crawlspace sub-membrane system: $1,795 – $2,895 depending on square footage
• Complex multi-suction-point installs: $2,495 – $3,995
• EPA-protocol 48-hour real-estate test: $150 – $195
• Post-mitigation re-test: included with every install

What changes the price? Foundation type, suction-point count, electrical access for the fan, and pipe routing distance. We give a firm written price before any work begins — not a range that creeps up on install day. Financing is available for qualifying homeowners and investors.

From the first phone call to the post-install re-test, here's exactly how a Delaware project runs.

You give us your test number, foundation type, and square footage. We give you a firm price range over the phone and a written quote by email — usually within 2 hours. If you're under contract, tell us the closing date. We schedule backward from it.

An RC202-licensed technician walks the home, performs a sub-slab communication test if needed, identifies the optimal suction point and pipe route, and confirms the final price. No surprises on install day.

Most Delaware homes are mitigated in 4–6 hours. We core the slab, seal cracks and the sump (if present), run PVC vent piping to roof-line discharge per Ohio code, mount the fan in an exterior or attic location, install a manometer for ongoing monitoring, and run a dedicated electrical circuit.

We deploy a re-test 24 hours after start-up and provide a signed report showing the post-mitigation pCi/L level — the document your buyer, lender, or title company needs. Our systems average 1.3 pCi/L after install, well below the EPA 4.0 action level.

Delaware sits on a mix of Columbus Limestone and Ohio Shale bedrock, with glacial till deposits across most residential lots. That combination produces some of the highest naturally occurring radon levels in the state. The Ohio Department of Health classifies all of Delaware County in the highest-risk Zone 1 — the same zone as Franklin, Licking, and Union Counties.

We work across every Delaware neighborhood and surrounding community:

• Downtown Delaware and the historic Sandusky Street district
• Glenross, Stratford, and the developments around US-23
• Olentangy school district homes north toward Powell
• Sunbury Road and Berkshire Township properties
• Lewis Center, Powell, Galena, Ostrander, and Ashley
• Properties near Ohio Wesleyan University and the Delaware State Park area

Older homes near downtown — many with stone foundations and partial basements — tend to need custom routing. Newer construction in subdivisions off Cheshire Road typically takes a straightforward sub-slab system. We've installed in both, hundreds of times.

We also work directly with Delaware-area home inspectors and real-estate offices. Our inspector referral program includes a named Special Offer for referred clients — ask your inspector or agent if they're already partnered with us.

• Ohio Mitigation License RC202 — verifiable with the Ohio Department of Health
• NRPP and/or NRSB certified technicians
• 5-year system warranty, transferable to next homeowner — a resale advantage
• Lifetime fan warranty options available on select models
• Post-mitigation re-test included with every install
• Fully insured — general liability and workers' comp documentation provided on request
• Thousands of Ohio installs across residential, commercial, school, and multi-family properties