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*The Angi rating for Radon Detection And Reduction companies in Marshall, TX 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 Marshall, TX 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 January 30, 2026

Find Radon detection and reduction specialists in Marshall

Avatar for LoneStar Mold Testing
LoneStar Mold Testing
4.9(
105
)

Serving Marshall, TX and surrounding areas

In business since 2016

Free estimates

Emergency services offered

"Lance was very professional and informative! He was very quick to fit us in to his schedule to test for toxic mold! He got the test results back quickly and gave us his recommendations within 24 hours! I highly recommend LoneStar Mold Testing."
Apartment Complex College
Apartment Complex College
Water damage floors
Mold growth on drywall
Home for sale

+22

Response time2 hrs
Response rate85%
Recommended by95%of homeowners
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Avatar for Clear Environmental
Clear Environmental
4.2(
15
)

Serving Marshall, TX and surrounding areas

In business since 2013

Free estimates

Warranties offered

"These guys are true professionals and true to their word. They did exceptional work and exactly what I asked of them. I would truly do business with this company again!"
Abatement
Abatement
Abatement
Abatement
Abatement

+7

Response time1 day
Recommended by91%of homeowners
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Radon Detection and Reduction questions, answered by experts

Your radon mitigation system may be loud because it’s time to replace it. Any sounds are usually from the inline fan that helps create the vacuum and resulting airflow. If you hear a new, loud mechanical or humming noise from your radon fan, it might be time to replace it. Most fans used in radon mitigation systems last up to 10 years, but may need to be replaced sooner.

No, radon mitigation systems do not decrease home value or make a home harder to sell. In areas where homes experience similar radon exposure risks, a radon mitigation system is viewed as an improvement. Potential homebuyers often opt to buy a home with a radon mitigation system already installed to reduce the risk of cancer for their families.

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 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 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 Marshall, TX homeowners’ guide to radon detection and reduction services

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