| Quick facts | Answer |
|---|---|
| Cost range | About $1,200 to $2,000 installed; larger homes can exceed $2,500 |
| Time | Straightforward sub-slab jobs often finish in a day or a few hours |
| Who's qualified | Kentucky-certified (NRPP/NRSB) radon mitigation contractor only |
What makes the price go up or down?
Home size, foundation design, and system type all change the price. The most common method, active soil depressurization, is priced at $1,200 to $2,000 installed. Complex jobs such as crawl space membranes, multiple suction points, or finished basements cost more.
How long does a radon mitigation installation take?
A typical straightforward sub-slab installation is often completed in a day, sometimes in just a few hours. More complex jobs can take two days. Plan for the longer timeline if your home has a crawl space or finished basement.
When should I fix my home for radon?
EPA says if a home tests at 4 pCi/L or more, a qualified mitigator should estimate the cost of upgrading to an active system. EPA also says most homes can be fixed for about the same cost as other common home repairs.
How do I confirm the job worked?
EPA says a follow-up radon test should be done within 30 days of installation, but not sooner than 24 hours after the fan has been operating. A 2-7 day measurement checks the system's initial effectiveness.
What to do next
- Test your home first, since EPA says a result of 4 pCi/L or more calls for mitigation.
- Verify the contractor's NRPP or NRSB certification through the Kentucky state certification list before hiring.
- Ask each quote to list the system type, foundation work included, and the total installed price.
- Schedule a follow-up test within 30 days of installation, starting at least 24 hours after the fan runs.
- 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.



