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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.

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Last update on January 14, 2026

Find Radon detection and reduction specialists in Hennessey

Avatar for A-1 Inspections, LLC
A-1 Inspections, LLC
5.0(
1
)
Radon Gas - Testing

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."
Home Inspections
Home Inspections
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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
Radon Gas - Testing

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

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

Use a radon test kit or hire professionals to conduct a detailed assessment of radon levels in your home.

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 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.

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.

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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