| Quick facts | Answer |
|---|---|
| Cost range | About $800 to $2,500 for a standard system |
| Time | Often about 1 day; redesigns can take longer |
| Who's qualified | Kentucky requires radon contractors to be state licensed; verify at radon.ky.gov |
Richmond, KY: what's different here
Richmond is the seat of Madison County, about 23 miles and roughly 27 minutes from Lexington via I-75 North. Kentucky Geological Survey data shows radon potential across the state varies with bedrock type, including uranium-bearing shales and limestones. More than 70,000 home radon test results were combined with geologic maps to build Kentucky's statewide indoor radon potential map. Because levels vary by season and home, Richmond homeowners should test their own houses.
When does a radon mitigation system need a redesign?
A redesign is usually needed when the original system is underperforming, the home layout changes, or the foundation or fan setup must be adjusted. The goal is keeping indoor radon below the EPA action level of 4 pCi/L. A post-installation test confirms whether the system works.
Why is radon a concern in Richmond, Kentucky?
Richmond sits in Madison County, where Kentucky Geological Survey mapping shows radon potential varies by bedrock type. Common uranium-bearing rock types in Kentucky include black shale and phosphatic limestones, and some limestone units contain uranium-bearing material that concentrates in soil. Actual in-home levels also vary by season, so testing your own house is necessary.
What radon level requires fixing the home?
The EPA says to fix a home if the radon level is 4 picocuries per liter (pCi/L) or higher. Kentucky has a predicted average indoor screening level between 2 and 4 pCi/L, putting the state in EPA Radon Zone 2. The median indoor radon level in Kentucky is about 3.5 pCi/L.
How do I verify a radon contractor in Kentucky?
Kentucky requires contractors performing radon-related services to be licensed by the state. Check the state radon office at radon.ky.gov or call 502-782-2782 to verify certification. Ask any pro for proof of license and insurance before work begins.
What to do next
- Test your home and confirm the radon level is at or above the EPA action level of 4 pCi/L.
- Verify the contractor's Kentucky license and NRPP/NRSB certification at radon.ky.gov or by calling 502-782-2782.
- Get a written quote that covers the redesign scope, fan setup, and post-installation test.
- Ask how the fan's continuous draw of 100 to 300 watts will affect your yearly energy bill.
- Call (859) 249-8571 or email [email protected] for a free quote from a Kentucky-certified (NRPP/NRSB) radon mitigation contractor.
Lexington Radon Pros is a free referral service: an independent contractor does the work and may pay us a referral fee. You never pay us anything.




