Top-rated radon detection and reduction specialists.

Get matched with top radon detection and reduction specialists in Greenfield, MO

Enter your zip and get matched with up to 5 pros

Need a pro for your radon detection and reduction project in Greenfield, MO?

Select your specific project to find the pro for you.

Verified Reviews for Radon Detection And Reduction pros in Greenfield, MO

*The Angi rating for Radon Detection And Reduction companies in Greenfield, MO 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 Greenfield, MO 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 May 23, 2026

Find Radon detection and reduction specialists in Greenfield

Avatar for Lee Safety & Environmental Services, Inc.
Lee Safety & Environmental Services, Inc.
4.6(
10
)
Radon Gas - Testing

Serving Greenfield, MO and surrounding areas

Approved

In business since 1994

Free estimates

Emergency services offered

"Friendly and knowledgeable, took the time to explain different aspects of testing process and types of molds."
Ozark Mold Clean-up Job
Ozark Mold Clean-up Job
Ozark Mold Clean-up Job
Ozark Mold Clean-up Job
Ozark Mold Clean-up Job

+14

Response time2 days
Response rate86%
19 neighbors recently requested a quote
Request Quote
Avatar for SWAT Environmental, Inc.
SWAT Environmental, Inc.
4.5(
52
)
Radon Gas - Abatement

Serving Greenfield, MO and surrounding areas

In business since 1988

Free estimates

Credit card accepted

"Overall everything was pretty good. I felt the installation could have looked much cleaner but it is fine. I still haven't re tested to see what my radon levels are now."
Recommended by97%of homeowners
Request Quote
Avatar for American Home Inspectors Inc.
American Home Inspectors Inc.
4.7(
7
)
Radon Gas - AbatementRadon Gas - Testing

Serving Greenfield, MO and surrounding areas

In business since 1986

Free estimates

Emergency services offered

"He is very personable, knowledgeable, thorough and his report was very clear to understand. He emailed all the pictures and report to me the very next day. "
Recommended by85%of homeowners
Request Quote
Avatar for A Pro Home Inspection Services
A Pro Home Inspection Services
2.8(
3
)
Radon Gas - Testing

Serving Greenfield, MO and surrounding areas

In business since 2006

Free estimates

We pride our company on reliability, great communication, integrity and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!\n\n

Response time5 hrs
Response rate100%
Recommended by66%of homeowners
Request Quote
Avatar for Crawlspace Medic of Springfield
Crawlspace Medic of Springfield
5.0(
5
)
Radon Gas - AbatementRadon Gas - Testing

Serving Greenfield, MO and surrounding areas

In business since 1991

Free estimates

Warranties offered

Healthy Homes Start From the Ground Up\n\nAt Crawl Space Medics, we diagnose and treat the hidden issues that threaten your home’s health and stability. Most homeowners ignore the crawl space, but dampness and mold beneath your feet can lead to poor air quality, high energy bills, and structural damage. We provide a permanent "prescription" to keep your home dry and safe.\n\nOur Specializations:\n• Encapsulation: High-grade vapor barriers for a clean, dry foundation.\n• Moisture Control: Dehumidifiers and drainage systems to stop standing water.\n• Structural Repair: Fixing sagging floors with joist reinforcement and jacks.\n• Mold Remediation: Safe removal to protect your family’s respiratory health.\n\nProtect your investment. Contact Crawl Space Medics today for a free inspection!

Encapsulation
11 neighbors recently requested a quote
Request Quote
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.

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.

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.

Yes, many systems include warranties for performance. Confirm terms with your installer.

No level of radon is technically safe, but since it is naturally present everywhere, it is impossible to avoid entirely. The average radon level in homes across the United States is 1.3 picocuries per liter (pCi/L). The Environmental Protection Agency (EPA) recommends taking action to reduce radon levels if your home's test results are between 2 and 4 pCi/L or higher.

The Greenfield, MO 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.

See all articles