| Quick facts | Answer |
|---|---|
| Cost range | $1,200-$3,000 for a mitigation system; sealing cracks alone can be under $100 |
| Time | Varies by home - confirm in your quote |
| Who's qualified | Kentucky requires radon contractors to be state licensed; look for NRPP-certified specialists |
What can a handy homeowner safely DIY in a Lexington crawl space?
EPA says most cracks and small openings can be sealed for under $100, and that is a reasonable DIY sealing step. But sealing alone is not a full crawl space radon mitigation system. If your radon level is 4 pCi/L or higher, EPA says the home should be fixed with a real mitigation approach.
Why crawl space radon mitigation is harder than it looks
A sub-membrane suction system covers the earth floor with sealed high-density plastic, seams sealed, plus a vent pipe and fan to exhaust radon outdoors. EPA standards also require identifying, closing, and sealing openings in the floor above the crawl space so conditioned air doesn't escape. Getting seams, fan sizing, and vent placement right is a specialized installation, not a patch job.
When to call a pro for crawl space radon mitigation
Call a pro if your test reads 4 pCi/L or higher, or if your crawl space has exposed soil needing full sub-membrane coverage. Also call if the job involves an active fan, since EPA describes sub-membrane suction as the most effective method when properly applied. A pro should also evaluate crawl-space vents, which EPA says should be left open year-round, and moisture conditions in your layout.
What does a Lexington crawl space radon mitigation system cost?
A Lexington cost guide puts the average mitigation system at $1,200-$3,000. Budget for ongoing fan energy too: an active fan draws 100 to 300 watts continuously, adding about $30-$300 per year to your electric bill. Sealing cracks alone can cost under $100 but won't fix high radon by itself.
What to do next
- Test your home with a radon test kit; EPA says fix levels at 4 pCi/L or higher.
- Check the Kentucky radon office at radon.ky.gov or 502-782-2782 to verify a contractor's certification.
- Ask for proof of an NRPP certification and Kentucky state license before hiring.
- Get a written quote itemizing sub-membrane coverage, sealing of floor openings, and fan and vent pipe work.
- 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.
