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*The Angi rating for Radon Detection And Reduction companies in Hennessey, OK 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 Hennessey, OK 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 14, 2026

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Avatar for A-1 Inspections, LLC
A-1 Inspections, LLC
5.0(
1
)

Serving Hennessey, OK and surrounding areas

Approved

In business since 2010

Free estimates

Credit card accepted

"Joseph is the only inspector I use. He is very professional and friendly. Joseph is always on time and is very happy to answer any questions."
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+19

Response time8 hrs
Recommended by100%of homeowners
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Avatar for Marshall Environmental Management - Home Facebook
Marshall Environmental Management - Home Facebook
New to Angi

Serving Hennessey, OK and surrounding areas

In business since 1987

Free estimates

Credit card accepted

We are the premier professional industrial hygiene and consulting company in Oklahoma City. We specialize in asbestos, indoor air quality, lead and occupational monitoring. We offer the highest quality and most attentive customer service. We are known to pay exquisite attention to detail while making customer satisfaction our top priority. \n\nMold Inspections start at $550. Please call us today to schedule your appointment!

Response time1 day
Response rate100%
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Radon Detection and Reduction questions, answered by experts

You'll need to test your home for radon after installing the mitigation system, then again every two years. If radon remains elevated, contact a licensed radon professional, either the contractor who installed the system or a different one, and have them evaluate the system. They may need to make some changes to improve its effectiveness and performance.

A homeowner can install a radon mitigation system on their own. But it’s a challenging DIY that requires a lot of knowledge about radon mitigation as well as familiarity with local regulations. You do not want to risk an improper installation that leaves the system unable to detect radon or gives it a shortened life span. Relying on a professional is the surest way to guarantee a successful installation.

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.

The natural breakdown of uranium in soil, rock, and water can cause radon to appear in a home. The gas seeps into homes through cracks in foundations, walls, or floors, as well as through gaps around pipes or construction joints. Radon levels are influenced by soil composition, building materials, and ventilation. Poorly sealed or airtight homes can trap radon, allowing it to accumulate.

While DIY testing is possible, abatement generally requires professional installation to ensure efficacy and meet safety standards.

The Hennessey, OK 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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