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North Royalton, OH Radon Levels

Check local North Royalton radon levels and find certified testing and mitigation professionals to keep your home safe


North Royalton, OH Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)
County Cuyahoga County, OH
Zip Code 44133

Positioned in Cuyahoga County as part of the Cleveland Metro area, North Royalton rests on glacial till deposits over Ohio shale that can contribute to radon gas production. The suburban community in zip code 44133 features predominantly post-1960s housing with full basements typical of northern Ohio construction. While specific radon testing data is currently unavailable, residents should consider testing given the area's geological conditions and Ohio's moderate-to-high radon potential.

North Royalton, OH Radon Mitigation

Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.

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Radon FAQ for North Royalton, OH

What EPA Radon Zone is North Royalton in?
North Royalton and the 44133 zip code are in Cuyahoga County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.
How much does radon mitigation cost in North Royalton?
Radon mitigation in North Royalton typically costs between $800 and $2,000. Most homes with standard basements can be mitigated with a sub-slab depressurization system in the $1,000–$1,500 range. Factors that can increase cost include complex foundations, crawl spaces, or very high radon levels.
Should I test for radon if I'm buying a home in North Royalton?
Yes. Radon testing should be part of every home purchase. A short-term radon test is typically included as part of the home inspection process and costs $150–$250. If elevated levels are found, you can negotiate mitigation as part of the sale.

Most Active Radon Markets in Ohio

Cities in Ohio with the most user-submitted radon test data, ranked by number of submissions.

CityAvg User Radon LevelSubmissions
Marietta 8.00 pCi/L 5
Cincinnati 5.20 pCi/L 5
Hilliard 11.75 pCi/L 4
Wilmington 5.25 pCi/L 4
Newark 15.00 pCi/L 3
Athens 11.33 pCi/L 3
Findlay 10.33 pCi/L 3
Perrysburg 9.67 pCi/L 3
Powell 8.33 pCi/L 3
Columbus 6.00 pCi/L 3