Radon Mitigation Westerville OH | Licensed RC202 Pros

Westerville sits squarely inside the EPA's Zone 1 — the highest-risk radon category in the country. Delaware and Franklin County homes routinely test above the EPA action level of 4.0 pCi/L, and we've measured Westerville basements north of 20 pCi/L more times than we'd like to count. If your home inspector just handed you a radon report you didn't expect, you are not alone, and you are not stuck.

Radon Eliminator is Ohio's licensed radon authority (Ohio Mitigation License RC202) providing Radon Mitigation in Westerville OH for homeowners, buyers, sellers, agents, commercial property owners, schools, and apartment complexes. We don't do basement waterproofing, HVAC, or pest control on the side. Radon is what we do — every job, every day, every system.

Most Westerville homeowners find us mid-transaction: the inspection report flagged elevated radon, the closing is 10 days out, and the deal is suddenly wobbling. That's our specialty. We test, design, install, and post-test on timelines built around closing dates — not the convenience of the installer.

Call (614) 333-9609 for same-week scheduling, transparent flat-rate pricing, and a system backed by lifetime-grade workmanship.

There are contractors in Central Ohio who install radon systems. There is one company in Ohio whose entire license, training, equipment, and reputation is built on doing it right the first time. Here's what separates us from the generalists.

• Ohio License RC202 — We publish our license number because we earned it. Ask any other radon company in Westerville for theirs in writing.
• EPA & AARST-aligned protocols — Every test follows EPA measurement protocols. Every system meets the ANSI/AARST SGM-SF-2017 standard for soil gas mitigation in existing homes.
• Closing-deadline scheduling — We routinely complete the full test → install → post-test cycle in under 10 business days. We won't blow up your closing.
• Transparent flat-rate pricing — Most Westerville single-family mitigation systems fall between $1,295 and $1,895. You'll get a written quote before we touch your home.
• Residential + commercial depth — We're one of the few Ohio firms credentialed and equipped to handle apartment buildings, schools, and commercial real estate transactions, not just three-bedroom ranches.
• Post-mitigation testing included — Every system we install gets re-tested to confirm we drove radon below 4.0 pCi/L (we usually land under 2.0).
• System transferability — Our installations come with documentation that satisfies lenders, underwriters, and future buyers.

Whether you're a homeowner near Hoover Reservoir, an agent with a deal on Polaris Parkway, or a property manager with an apartment complex off Schrock Road, the right system depends on your foundation, soil, and goals. Here's what we offer.

Continuous radon monitors deployed for a minimum 48-hour closed-house test, with same-day results delivered to you, your agent, and your lender. We test pre-purchase, post-mitigation, and on a scheduled cadence for commercial clients. No charcoal canisters mailed to a lab — we use professional-grade CRMs that log hourly readings, temperature, humidity, and tamper alerts.

The gold standard for Westerville basements and slab-on-grade homes. We core through the slab, excavate a suction pit, and install sealed PVC piping connected to a quiet exterior radon fan that pulls soil gas out from under the foundation before it ever enters your living space. Properly sized fans for your soil permeability — not a one-size-fits-all install.

Older Westerville homes — especially in Uptown Westerville and the Old Westerville Historic District — frequently have dirt or partial crawl spaces. We install a sealed 12-mil reinforced vapor barrier and tie it into a depressurization system that handles both radon and moisture in one pass.

Multi-zone diagnostic testing, engineered system design, and compliance documentation for property owners legally responsible for safe radon levels. We serve apartment complexes, condo associations, daycares, schools, and commercial buildings throughout Westerville and the greater Columbus metro. This work requires licensing and operational capacity most local radon contractors don't have.

Our most-requested service in Westerville. We coordinate directly with your agent, the buyer's agent, the inspector, and the title company. You get a system installed, post-tested, and documented in time for closing. We provide the paperwork lenders need — every time.

Every job follows the same disciplined sequence. No shortcuts, no improvisation, no surprises on your invoice.

1. Diagnostic Site Visit (or Inspector Report Review). We review your existing radon test results, photograph your foundation, identify suction points, and map the path of least resistance for fan placement and piping. If you don't have a test yet, we deploy one same- or next-day.
2. Written System Design & Flat-Rate Quote. You get a fixed-price proposal — typically within 24 hours — that specifies fan model, pipe routing, exterior termination point, electrical work, and warranty terms. No hourly surprises.
3. Installation Day (Usually 4–6 Hours). A single licensed crew completes the install in one visit. We core the slab, seal sumps and floor cracks, run schedule-40 PVC, mount the fan, install the U-tube manometer, and label the system per AARST standards.
4. Post-Mitigation Verification Test. A continuous radon monitor runs for 48 hours after installation. We deliver the results in writing — and if we don't have you under 4.0 pCi/L, we tune the system at no charge until we do.
5. Documentation & Handoff. You receive system specs, post-test results, warranty paperwork, and (for real estate transactions) a closing packet your lender and title company will accept without follow-up questions.

Westerville isn't one housing stock — it's at least four, and each one mitigates differently.

Uptown Westerville and the Historic District are dense with century homes featuring stone foundations, partial basements, and crawl spaces. These houses almost always require sub-membrane systems combined with foundation sealing — a generic basement system won't move the needle.

Highlands, Heatherdown, and the neighborhoods east of State Street are mid-century ranches and split-levels on slab or shallow basements. Standard ASD systems work well here, but fan sizing matters because the glacial till under much of Westerville has variable permeability.

Newer developments around Polaris, Cherrington, and the corridor north of County Line Road were built with passive radon-ready stub-ups under code. We can frequently activate these passive systems for a fraction of a full install — but only if the stub-up was installed correctly. We've seen plenty that weren't.

Commercial corridors along Schrock Road, Cleveland Avenue, and Westerville Road contain multi-tenant buildings, schools (Westerville City Schools and South-Western), and apartment complexes that fall under Ohio's commercial radon compliance expectations. We handle the full design-build-document cycle.

We also work throughout the surrounding Central Ohio market — including Columbus, Dublin, Worthington, New Albany, Gahanna, and Cleveland — and across Northeast Ohio out of our Canton and Akron operations.

We publish pricing because you asked for it and competitors won't.

• Standard single-family ASD system: $1,295 – $1,895
• Crawl space sub-membrane system: $1,895 – $2,795
• Multiple suction points / complex foundations: $2,295 – $3,495
• Passive system activation: $695 – $895
• Pre- or post-mitigation 48-hour CRM test: $145
• Commercial / multi-family: Custom-quoted after diagnostic visit

Every quote includes the post-mitigation verification test, system labeling, manometer, warranty paperwork, and closing documentation. No add-ons at the end.

Whether your inspection just came back hot, your closing is next week, or you've been meaning to test for years, the call takes five minutes and the fix is permanent. Licensed (RC202), insured, AARST-aligned, and built around your timeline.

Call (614) 333-9609 or request a free quote online. Same-week scheduling available throughout Westerville and Central Ohio.