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EPA Zone 1 High-Radon Area NRPP / NRSB Verified

Radon Mitigation
in Cleveland, Ohio

Find certified radon contractors in Cuyahoga County — 1 verified mitigators

Radon Risk in Cleveland

Cleveland and Cuyahoga County sit in EPA Zone 1, an area with elevated radon risk. The U.S. EPA estimates that approximately 40% of Cleveland-area homes test above the 4 pCi/L action level, driven by Erie lakeshore geology and glacial deposits that concentrate radon from underlying shale and limestone bedrock. Testing and mitigation are strongly recommended for all homes with basements or ground-floor living spaces.

Why Radon Testing & Mitigation Matter in Cleveland

Older Housing Stock

Many Cleveland homes, especially in Lakewood, Rocky River, and the eastern suburbs, were built before 1950. These older homes often have unfinished basements, poor weatherproofing, and direct soil contact — all conditions that allow radon to accumulate.

Geology & Climate

Northeast Ohio's glacial deposits and limestone bedrock naturally release radon. Cold winters mean homes are sealed tight for months, maximizing radon accumulation indoors.

Health Risk

Radon is the second leading cause of lung cancer after smoking. The EPA action level of 4 pCi/L is a safety threshold — any level above it warrants testing and potential mitigation.

Affordable Mitigation

Most Cleveland-area homes can be mitigated in a single day with sub-slab depressurization or crawl space sealing. Costs are typically $1,200–$2,500 for a standard system.

Ohio requires state licensing for radon mitigation contractors. All contractors shown are NRPP or NRSB certified. To verify state licenses, visit the Ohio Department of Health Radon Contractors Directory.

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Certified Radon Contractors in Cleveland

Radon Mitigation in Cuyahoga County Neighborhoods

Radon risk varies slightly across Cuyahoga County neighborhoods, but testing is recommended everywhere. Areas with historically higher readings include:

  • Lakewood
  • Rocky River
  • Shaker Heights
  • Beachwood
  • Cleveland Heights
  • Euclid
  • West Park
  • Garfield Heights

Next Steps for Cleveland Homeowners

  1. 1. Test your home: Have a certified radon contractor test your home for 48–90 hours to establish a baseline level.
  2. 2. Review results: If levels are above 4 pCi/L, mitigation is recommended by the EPA.
  3. 3. Get quotes: Contact certified mitigators in Cleveland for installation quotes and timelines.
  4. 4. Mitigate: Most systems are installed in a single day and reduce radon levels by 50–99%.
  5. 5. Verify: After installation, retest to confirm the system is working effectively.