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Verified Reviews for Radon Detection And Reduction pros in Saint Joseph, MO

*The Angi rating for Radon Detection And Reduction companies in Saint Joseph, 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 Saint Joseph, 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 July 14, 2026

Find Radon detection and reduction specialists in Saint Joseph

Avatar for ATM Home Inspection, LLC
ATM Home Inspection, LLC
4.8(
40
)
Radon Gas - Testing

Serving Saint Joseph, MO and surrounding areas

Approved

In business since 2011

Free estimates

Credit card accepted

"They were very thorough and informative. They gave me information for my final walk through that I could never have had otherwise."
Response time50 mins
Response rate89%
Recommended by97%of homeowners
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Avatar for SWAT Environmental, Inc.
SWAT Environmental, Inc.
4.5(
52
)
Radon Gas - Abatement

Serving Saint Joseph, 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
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Avatar for Barnett Real Estate Inspections, LLC
Barnett Real Estate Inspections, LLC
5.0(
2
)
Radon Gas - Testing

Serving Saint Joseph, MO and surrounding areas

In business since 2007

Free estimates

Credit card accepted

Barnett Real Estate Inspections, LLC offers fast, friendly and courteous service. We use only the best products and are always eager to answer your questions and concerns. We have built our reputation on our commitment to providing quality service, which has earned us an impressive reputation with many valuable customers. We take pride in delivering value through top quality, dependable work with excellent price and reliable, honest service. Call us today!

Response time20 mins
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Avatar for The Environmental Guys LLC
The Environmental Guys LLC
New to Angi
Radon Gas - Testing

Serving Saint Joseph, MO and surrounding areas

In business since 2025

Free estimates

Emergency services offered

We test for several different hazardous materials and gas. We also off mold & mildew surface removal and cleaning with environmental friendly cleaners. We do offer free quotes and consulting on remedies for issues to your home or business.

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Radon Detection and Reduction questions, answered by experts

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 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.

You can vent radon out of your house sometimes by simply opening a window, but it won’t remove the source, and will likely rise above recommended levels quickly. A professional will be needed to assess your home, and determine the best strategy for radon removal. Active radon sump pumps and soil depressurization systems are often used to forcefully vent the radon from your home.

Mitigation can take several days depending on home setup, equipment accessibility, and achieving effective diffusion system sealed efficiency.

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 Saint Joseph, 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.

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