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*The Angi rating for Radon Detection And Reduction companies in Theodosia, 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 Theodosia, 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 March 15, 2026

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Avatar for Crawlspace Medic of Springfield
Crawlspace Medic of Springfield
5.0(
5
)

Serving Theodosia, MO and surrounding areas

Approved

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
5 neighbors recently requested a quote
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Avatar for Ozark Radon Gone Corp.
Ozark Radon Gone Corp.
5.0(
23
)

Serving Theodosia, MO and surrounding areas

In business since 2021

Free estimates

"Very satisfied with Brian's workmanship and professionalism. Quality of installation was excellent. Our radon reading immediately lowered to well below safe level."
Response time7 hrs
Response rate85%
3 neighbors recently requested a quote
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Avatar for Clear Radon, LLC
Clear Radon, LLC
5.0(
1
)

Serving Theodosia, MO and surrounding areas

In business since 2023

Free estimates

Credit card accepted

Professional radon testing & radon mitigation operating in Northwest Arkansas and Southwest Missouri. Owner-operator, Devin McDowell is the first fully licensed, certified, and insured Radon mitigator living in Northwest Arkansas. He is a radon testing and mitigation professional, certified through the National Environmental Health Association, (AARST/NRPP), and a member of the American Association of Radon Scientists and Technologists.

Response time5 hrs
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Avatar for A Pro Home Inspection Services
A Pro Home Inspection Services
2.8(
3
)

Serving Theodosia, 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
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Radon Detection and Reduction questions, answered by experts

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.

There are steps you can take as a homeowner to remediate radon yourself. While a radon reduction professional can make the biggest impact in your home, you can make efforts to improve radon levels on your own by sealing cracks, increasing ventilation, and testing for radon regularly.

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.

Keeping radon from getting into your home is much better than having to get rid of it once it's already indoors. While there may not be a way to fully prevent radon from getting into your home, there are things you can do to reduce the gas's ability to enter. 

Sealing foundation cracks and openings can help keep the gas from seeping inside. Improving air flow, such as by opening windows, can also be helpful. If you're building your home from scratch, talk to your contractor about using radon-resistant construction to keep the gas out.

The lifespan of a radon mitigation system depends on the type of system and its maintenance. With proper care, a system can last for many decades. Passive systems tend to last longer as they have fewer components that require replacement. Active systems, which have more moving parts like fans, generally have a shorter lifespan. For instance, water filtration devices and active pressurization systems require more frequent maintenance. While the system as a whole is durable, the radon fan in an active system typically has a lifespan of 5 to 10 years and will need to be replaced. As long as the fan is working, the mitigation system should function correctly.

The Theodosia, MO homeowners’ guide to radon detection and reduction services

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