| Quick facts | Answer |
|---|---|
| Cost range | Sub-slab depressurization system: $900–$1,600 |
| Time | Usually installed in less than a day |
| Who's qualified | NRPP or NRSB certified radon mitigation contractor |
What should I do today and this week?
Contact a certified radon mitigator now rather than waiting. The EPA recommends mitigating homes at or above 4.0 pCi/L to reduce exposure and lung cancer risk, and 14 pCi/L is far above that level. Because a reading this high is a prompt for action, not watchful waiting, a short follow-up test is typically the next step while you arrange the work.
Will one system bring 14 pCi/L below 4?
EPA states that mitigation technology can almost always reduce high radon levels to below 4 pCi/L, and to 2 pCi/L or below 70-80% of the time. After installation, the home should be retested between 24 hours and 30 days later to confirm the level has dropped. EPA also recommends periodic retesting afterward to confirm the level stays lowered.
What should I check when hiring a pro?
Verify that the contractor is certified through the National Radon Proficiency Program (NRPP) or the National Radon Safety Board (NRSB). Ask the pro for proof of licence and insurance. Ask whether the quote covers the number of suction points and fans needed for your foundation type, crawlspaces and number of floors, since these drive the final price.
How much does a typical system cost?
Most radon mitigation systems cost between $1,000 and $1,500, though the price depends on the home's size, foundation type, crawlspaces, number of floors, and how many suction points and fans are needed. Your written quote should show these details so you can compare the scope of work.
What to do next
- Schedule a follow-up radon test in your home now to confirm the 14 pCi/L result, following EPA short-term test guidance.
- Verify the contractor's certification in the National Radon Proficiency Program (NRPP) or National Radon Safety Board (NRSB) listings before hiring.
- Ask the pro for proof of licence and insurance before any work begins.
- Request a written quote that itemizes suction points, fans, and foundation and crawlspace work, then retest 24 hours to 30 days after installation.
- 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.
