Radon Eliminator provides Radon Mitigation in Windham, OH. Licensed Ohio radon mitigation (RC202) in Windham, OH. Call (330) 836-3322 for a free consultation.
Last updated: June 2026
Licensed Radon Mitigation in Windham, OH — Done Right, Done on Time
Photo by AI Generated (Grok Imagine)If your inspection report came back at 4.2, 6.8, or 12.0 pCi/L and you're staring down a closing date in Windham, you need two things: a licensed contractor who can be on-site this week, and a mitigation system that will pass a post-install test the first time. Radon Eliminator is Ohio's licensed radon authority (Ohio Mitigation License RC202), and Radon Mitigation in Windham, OH is what we do every single day across Portage County and the surrounding region.
Windham sits in a part of northeast Ohio where the underlying glacial till and shale bedrock release radon gas at rates well above the EPA action level of 4.0 pCi/L. Ohio is officially classified as having one of the highest radon exposure profiles in the United States, and Portage County properties — from older farmhouses near State Route 82 to newer builds off East Center Street — routinely test high. This isn't a scare tactic. It's the geology under your foundation.
We install permanent, code-compliant active sub-slab depressurization systems built to ASTM E2121 and the Ohio Department of Health mitigation standards. Every job includes a written scope, a clean exterior or interior run, a manometer for verification, and a post-mitigation radon test to prove the number dropped below 4.0 pCi/L. That last document is what your buyer, lender, or attorney actually needs.
Why Choose Radon Eliminator for Radon Mitigation in Windham
Most Windham homeowners call three contractors and get three vague answers. Here's what makes us different — and why agents, inspectors, and property owners across Portage County put us on speed dial:
- Ohio License RC202, stated upfront. Ohio law requires a licensed mitigation specialist for any installed system. We lead with our license number because most competitors bury theirs or aren't licensed at all. Ask anyone you're considering for their RC number before you sign.
- Closing-Date Radon Service. We schedule mitigation and post-tests around your real-estate timeline. If you close in 10 days, we work to that date — install, charcoal-cool, and re-test in a documented sequence that satisfies underwriters and buyer agents.
- Clear, written pricing. Most Windham single-family homes fall between $1,150 and $1,800 for a complete active mitigation system. Complicated foundations (multiple slabs, crawlspaces, finished basements) are quoted in writing before we start. No day-of surprises.
- Multi-vertical experience. We mitigate single-family homes, apartment complexes, schools, daycares, and commercial buildings. If you own a multi-unit property in Windham or operate a school facility in the Windham Exempted Village School District boundary, we understand the legal exposure and the multi-point testing protocol you actually need.
- Post-mitigation testing included. Every install includes EPA-aligned post-mitigation testing so you have a defensible, dated document showing the system works. That's the only number that matters to your bank.
Searching for the best Radon Mitigation Windham homeowners trust, or trying to compare top Radon Mitigation Windham OH options? Look at three things: license number, written pricing, and whether a post-test is included. We're confident in all three.
Our Radon Mitigation Services in Windham, OH
Photo by AI Generated (Grok Imagine)We don't sell fans. We sell engineered systems. Here is the full scope of professional Radon Mitigation Windham OH property owners can hire us for:
Residential Active Sub-Slab Depressurization (ASD) Systems
The gold-standard mitigation method for Windham homes with basement or slab-on-grade foundations. We core through the slab, excavate a suction pit, run sealed PVC to an exterior or attic-routed radon fan, and discharge above the roofline per EPA guidance. Includes a manometer (U-tube pressure gauge), system labeling, and sealing of foundation cracks and sump lids.
Crawlspace Mitigation with Membrane Encapsulation
Many older Windham homes — especially the farmhouses along Hayes Road and rural Windham Township parcels — have dirt or partial crawlspaces. We install a 6-mil reinforced vapor membrane, seal it to the foundation walls, and tie it into an active suction system. Cleaner air, lower radon, and a drier crawlspace as a bonus.
Commercial, Apartment, and School Radon Mitigation
Multi-family and commercial buildings require multi-point testing and often multi-suction-point systems. We handle apartment complexes, condo associations, daycares, and school buildings in and around Windham — including ANSI/AARST-CCAH and MS-QA protocols for schools. Property managers in Portage County legally responsible for tenant safety should call us before a complaint forces the issue.
Existing System Diagnosis and Upgrades
Bought a Windham home that already has a radon system but the test still came back high? We diagnose underperforming systems — failed fans, undersized piping, broken seals, improper discharge — and bring them into compliance. Often a $300–$500 fix instead of a full reinstall.
EPA-Aligned Radon Testing (Pre and Post)
Short-term continuous radon monitor (CRM) tests for real-estate transactions — results in 48 hours with a chain-of-custody document. Long-term tests for homeowners who want a year-round average. All testing follows EPA Protocol for Radon Measurement in Homes.
Our 5-Step Radon Mitigation Process
- On-site assessment (same-week in Windham). A licensed technician inspects your foundation type, soil access, electrical, and aesthetic preferences. You get a written, fixed-price quote before anyone touches a tool.
- System design. We engineer the suction point location, fan size (typically RP145 or RP265 depending on slab permeability), and discharge route. For Windham's typical glacial-till soils, suction point placement matters more than fan horsepower.
- Installation (one day for most homes). Core drilling, pit excavation, PVC routing, fan mount, electrical hookup by a licensed electrician where required, exterior weatherproofing, and crack/sump sealing. Crews clean up; you'd never know we were there.
- System startup and manometer calibration. We confirm negative pressure under the slab, label the system per Ohio code, and walk you through how to read the manometer monthly.
- Post-mitigation radon test. A 48-hour CRM test confirms levels below 4.0 pCi/L. You get a signed PDF report — the document your buyer's agent, lender, or property manager needs.
Local Expertise: Radon in Windham and Portage County
Windham Village and the surrounding Windham Township sit in EPA Radon Zone 1 — the highest-risk classification, with predicted average indoor radon levels above 4.0 pCi/L. We've mitigated homes throughout the village, from the older housing stock near North Main Street and the Windham Cemetery, out to newer construction along Bauer Road, and across the rural parcels stretching toward Garrettsville and Newton Falls.
What we've learned in this corner of Portage County: basement bedrooms are common in Windham homes, which dramatically increases family exposure time. The combination of clay-heavy soils, shallow water tables in some areas, and the prevalence of sump pits creates strong pathways for radon entry. A house that tested 2.0 pCi/L in July can read 8.0 pCi/L in February — pressure differentials during heating season pull more gas into the living space.
We also serve nearby communities including Garrettsville, Hiram, Mantua, Ravenna, Streetsboro, Newton Falls, Warren, and the broader Trumbull and Portage County area. If you're searching Radon Mitigation near me from a Windham ZIP code (44288), we have crews working in the area weekly.
For Windham home inspectors and Realtors: we run a referral program with transparent pricing and a 24-hour quote turnaround so you can tell your client what to expect on the same call. Ask us about our inspector partner offer.
Affordable Radon Mitigation in Windham — Real Pricing
One of the most common complaints we hear: 'I called three companies and none of them would give me a straight price.' Here's how to think about affordable Radon Mitigation Windham OH pricing:
- Standard single-family home (basement or slab): $1,150 – $1,800 installed, including post-test.
- Crawlspace with membrane encapsulation: $1,800 – $2,800 depending on square footage.
- Complex foundations (multiple slabs, finished basement with limited access, additions): $1,900 – $2,600.
- Existing system repair or upgrade: $250 – $750 typical range.
- Real-estate short-term radon test: $145 – $195 with 48-hour documented results.
- Commercial, apartment, and school projects: quoted per building after on-site walkthrough.
Financing is available for qualified homeowners, and all installations carry a transferable system workmanship warranty plus the manufacturer's fan warranty (typically 5 years on the radon fan itself).
Frequently Asked Questions About Radon Mitigation in Windham
How much does radon mitigation cost in Windham?
Most Windham single-family homes fall between $1,150 and $1,800 for a complete, code-compliant active sub-slab depressurization system, including post-mitigation testing. Crawlspaces, complex foundations, and commercial buildings are quoted individually after an on-site assessment. We provide all pricing in writing before work begins — no day-of surprises.
What is the best radon mitigation company in Windham?
The best radon mitigation provider in Windham is a contractor who (1) holds a current Ohio Department of Health mitigation license — ours is RC202, (2) provides written, fixed pricing, (3) installs to ASTM E2121 and EPA standards, and (4) includes a documented post-mitigation test. Radon Eliminator does all four. Always ask for the RC license number before signing any contract in Ohio.
How do I choose a radon mitigation provider in Windham?
Verify their Ohio mitigation license, ask whether post-mitigation testing is included, get the price in writing, confirm they install an active system (not just sealing), and ask where the fan and discharge will be located. A reputable contractor will walk you through all of this before quoting.
What should I look for in radon mitigation services?
Licensed installer, written warranty, code-compliant exterior discharge above the roofline, a manometer for ongoing monitoring, and a post-install short-term test that confirms levels below 4.0 pCi/L. Avoid anyone who proposes only crack sealing or interior venting — those approaches do not meet EPA standards.
How long does radon mitigation take?
Most Windham home installations take 4–8 hours in a single day. After installation, the system needs 24 hours to stabilize before a 48-hour post-test. Total timeline from quote to documented result is typically 5–10 days — fast enough to fit inside most real-estate closing windows.
Is radon mitigation worth the investment?
Radon is the second-leading cause of lung cancer in the U.S. according to the EPA and Surgeon General. A $1,500 mitigation system reduces lifetime exposure by 50–95% and adds documented value to your home at resale. For real-estate transactions, it's often required to close. For families with basement bedrooms, it's straightforward risk reduction.
Find Radon Eliminator Near Windham, OH
Frequently Asked Questions About Radon Mitigation in Windham
How much does radon mitigation cost in Windham, OH?
What is the best radon mitigation company in Windham?
How do I choose a radon mitigation provider in Windham?
What should I look for in radon mitigation services?
How long does radon mitigation take?
Is radon mitigation worth the investment?
Get Licensed Radon Mitigation in Windham — Fast, Documented, Under 4.0 pCi/L
Whether your closing is in two weeks, you just saw the Portage County radon map, or you manage an apartment building that needs multi-unit testing — call Radon Eliminator. Ohio License RC202. Written pricing. EPA-aligned post-test included. Service across Windham and all of Portage County.Call now for a same-week assessment or request a written quote through our online form. We'll tell you the price, the timeline, and the expected post-mitigation number on the first call.
Radon Eliminator Near Windham
Visit our nearest location or call us at 330-622-0434 for service in Windham.
