| Quick facts | Answer |
|---|---|
| Cost range | $1,200-$3,000 for a full mitigation system; sealing alone varies by home |
| Time | Varies by home - confirm in your quote |
| Who's qualified | Kentucky requires radon contractors to be state licensed; NRPP-certified specialists qualify |
Richmond, KY: what's different here
Richmond sits in Madison County, about 23 miles and roughly 27 minutes from Lexington via I-75 North. Homes there that need mitigation are often older Kentucky houses with basements or crawl spaces, both of which EPA says can be part of radon-reduction system designs. A sump pit in one of those basements is a common soil-gas entry route.
Why does a sump pit let radon into a Richmond home?
A sump pit connects directly to the soil under your foundation, so soil gas can rise straight into the basement. EPA lists sump pits among the first places to seal in any radon reduction plan. Sealing cracks and openings like the pit is a basic part of most radon reduction approaches.
How should a sump pit be sealed for radon?
EPA's mitigation standards say a sump pump cover should be sealed with silicone or another non-permanent caulking material, or with an air-tight gasket, so it can be removed for pump service. If the cover encloses an air space around the pump, a small fan should exhaust that air outdoors, preferably at roof level.
Does sump pit sealing alone lower radon levels?
Usually not by itself. EPA guidance says sealing has not been shown to lower radon levels significantly or consistently, so it works best alongside an active mitigation system. Homes with basements or crawl spaces can both use radon-reduction systems similar to those used in basements.
How do I verify a radon contractor in Kentucky?
Kentucky requires contractors performing radon-related services to be licensed by the state. Verify certification through the state radon office at radon.ky.gov or by calling 502-782-2782. Ask any pro for proof of license and insurance before work starts.
What to do next
- Test your home and compare the result to EPA's 4 pCi/L action level before spending money.
- Verify the contractor's Kentucky license at radon.ky.gov or by calling the state radon office at 502-782-2782.
- Ask the pro whether your sump pit needs a gasketed cover, silicone sealant, or a small vent fan exhausting to roof level.
- Get a written quote that separates sump pit sealing from any full mitigation system, and ask about fan energy costs of $30-$300 per year.
- 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.



