State radon guide

Radon Testing, Mitigation Costs & Contractors in Tennessee

Tennessee's radon program offers homeowner education and statewide testing support. Elevated radon has been measured across the state, so homeowners should test rather than assume a county or region is unaffected.

Testing your home

Use the state-provided or other approved test kit exactly as directed. Tennessee recommends qualified/certified professionals for mitigation when elevated levels are confirmed.

Free or low-cost test-kit information

The Tennessee Radon Program says it distributes about 6,000 free radon test kits to Tennessee residents each year. Verify the order form and inventory before launch.

Programs and inventory can change. Confirm current availability with the listed agency before relying on an offer.

Mitigation cost planning

Estimate only: a professionally installed residential radon mitigation system often falls in a broad $1,200–$3,500 range, but the final price can be lower or higher. Foundation type, crawlspaces, finished basements, multiple suction points, fan/pipe routing, electrical work, permits, diagnostics, and post-mitigation testing can materially change the quote. Use local written bids rather than treating this range as guaranteed pricing.

A test result provides important context, but it does not directly increase the modeled price.

Tennessee rules and public resources

Needs Verification: needs verification — Tennessee's current program directs homeowners to NRPP/NRSB-certified professionals, but the reviewed page did not establish a separate statewide radon-specific professional license.

EPA radon-zone context

Tennessee radon potential varies geographically, but elevated results can occur outside higher-potential areas. EPA maps are not substitutes for home testing.

Testing is the only way to know. EPA radon zones are broad planning tools. Never use a zone, county, ZIP, or map to predict the radon level of a specific home or to decide that testing is unnecessary.

Public radon professional listings in Tennessee

Directory inclusion is not an endorsement or a guarantee. Confirm current services, credentials, insurance where appropriate, pricing, service area, and availability directly.

Browse all Tennessee listings

Frequently asked questions

Should every home in Tennessee be tested for radon?

Testing is the only way to know the radon level in a specific Tennessee home. Maps, county averages, a neighbor's result, and foundation type cannot replace a properly conducted test.

What does a result of 4 pCi/L mean?

EPA recommends taking action to reduce radon at 4 pCi/L or higher and suggests considering action between 2 and 4 pCi/L. The action level is not a line between safe and unsafe; long-term risk generally increases as exposure increases.

How much does radon mitigation cost in Tennessee?

Pricing varies by the home and the system design. RadonCostGuide uses broad planning estimates only; foundation type, crawlspaces, finished areas, suction points, electrical work, permits, diagnostics, and post-mitigation testing can all affect the final quote.

How do I find a radon professional in Tennessee?

Start with the state radon program and the NRPP/NRSB directories where appropriate. Independently confirm current credentials, insurance, scope of work, permits, warranties, service area, and pricing before hiring.

Are free or low-cost radon test kits available in Tennessee?

The Tennessee Radon Program says it distributes about 6,000 free radon test kits to Tennessee residents each year. Verify the order form and inventory before launch.

Sources

Content reviewed 2026-08-22. Costs are planning estimates, not quotes or guarantees.