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*The Angi rating for Radon Detection And Reduction companies in Greenville, VA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Radon Detection And Reduction needs.

*The HomeAdvisor rating for Radon Detection And Reduction companies in Greenville, VA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Radon Detection And Reduction needs.

Last update on March 10, 2026

Find Radon detection and reduction specialists in Greenville

Avatar for TOPS RADON
TOPS RADON
5.0(
8
)
Radon Gas - AbatementRadon Gas - Testing

Serving Greenville, VA and surrounding areas

Approved

In business since 2025

Free estimates

Offers commercial services

"Our radon system had become inoperable. Tops was able to repair the system and getting everything up and running quickly and efficiently. I highly recommend Tops!"
External fan
Mitigation system
Mitigation system
Mitigation system
Response time2 days
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Avatar for SWAT Environmental, Inc.
SWAT Environmental, Inc.
4.4(
77
)
Radon Gas - Abatement

Serving Greenville, VA and surrounding areas

In business since 1988

Free estimates

Credit card accepted

"They did a great job and were able to complete the job while I was at work. It helped fix the radon problem and I was able to sell my house."
Recommended by91%of homeowners
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Avatar for All States Air Duct Pro
All States Air Duct Pro
3.1(
236
)
Radon Gas - AbatementRadon Gas - Testing

Serving Greenville, VA and surrounding areas

In business since 1995

Free estimates

Emergency services offered

"We had had a new kitchen put in and then a year later, we had had our kitchen floor redone and basement repaired after a flood in our house.  Water from our washer had flooded the kitchen and laundry room and then flowed through the floor into the basement theater room and rec room.  We had to have a new (porcelain) tile floor put in upstairs and new paint and carpeting throughout the basement.   The work for the new kitchen and then the flood required a huge amount of sanding, spackling and more sanding...etc. The dust in our house was a big problem afterwards from the spackle dust that accumulated  in our ducts.  We decided to have our ducts cleaned and found All States on Angie's list.   It went great!  They were on time, conversant about the state of our ducts.  They did the job.  I have noticed that the air is better in the house and we have much less dust on furniture!  Very happy with their services and I would definitely hire them again.
"
Before & After Air Duct Cleaning
Recommended by49%of homeowners
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Radon Detection and Reduction questions, answered by experts

The cost for a radon mitigation system typically ranges from $800 to $1,500, with an average around $1,000. The final price depends on several factors, including the size of your home, the severity of the radon issue, and the type of system required. Your home's foundation type also significantly impacts the cost. For example, sealing and ventilating an unfinished basement might cost around $4,600, while encapsulating a crawl space without a foundation slab can range from $1,500 to $15,000.

No, air purifiers are not an effective way to reduce or remove radon. Radon is a radioactive, inert gas that cannot be filtered by standard air purifiers, which are designed to capture particulates like dust and mold. While an air purifier can improve indoor air quality by removing other pollutants, it should not be relied upon for radon. The only effective solution for high radon levels is a dedicated radon mitigation system.

If your home has a sump pit, you can integrate it with a radon mitigation system. You can accomplish this by sealing the pump cover with an airtight lid that accommodates radon vent pipes and sump pump hoses. This allows the vent pipe to redirect the radon gas outside of your home.

Ideally, no one will live in a house with elevated radon levels, as prolonged exposure increases the risk of serious health issues like lung cancer. However, homes with radon can be made safe through mitigation systems, such as active soil depressurization. Testing for radon regularly and addressing high levels helps ensure a safe living environment.

The soil beneath your house is most likely what’s causing an increased level of radon. This is because soil holds radioactivity for a long time and it’s also what most buildings are built on. Another common source of radon is water from a source that hasn’t been through periodic radon tests, such as well water. Over time, the radon from the soil can inhabit other parts of your house like the foundation or plumbing.

The Greenville, VA homeowners’ guide to radon detection and reduction services

From average costs to expert advice, get all the answers you need to get your job done.

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