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*The Angi rating for Radon Detection And Reduction companies in Seymour, IN 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 Seymour, IN 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 September 17, 2026

Find Radon detection and reduction specialists in Seymour

Avatar for Clean Worx, LLC
Clean Worx, LLC
4.9(
112
)
Radon Gas - Abatement

Serving Seymour, IN and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"Amanda and Dustin were great to work with. Glad to have the radon dealt with in a quick and expeditious manner. I had a passive radon system that failed to accomplish effective radon removal and Dustin made it an â activeâ system that I am very pleased with."
Interior Radon Mitigation System
Interior Radon Mitigation System
Interior Radon Mitigation System
Interior Radon Mitigation System
Interior Mitigation System

+3

Response time8 hrs
27 neighbors recently requested a quote
Recommended by91%of homeowners
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Swat Group, Inc.
4.4(
152
)
Radon Gas - Abatement

Serving Seymour, IN and surrounding areas

In business since 1988

Free estimates

Credit card accepted

"Hired for the convienience of their timely ability to install a radon system. The vent on the outside of the house is a large diameter, circular chimney that is very unsightly. Prices were a bit higher than other companies, but their ability to install quickly took precedence. In SWATs defense, I did not inform the company of my displeasure as the system was being installed as a condition of sale."
Response time1 day
Recommended by94%of homeowners
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Avatar for Breathe Safe Radon & Moisture Control
Breathe Safe Radon & Moisture Control
4.4(
28
)
Radon Gas - Abatement

Serving Seymour, IN and surrounding areas

In business since 2020

Free estimates

Warranties offered

"Lance and Joy did a great job. Radon level below 4 at this time and believe it will go lower. I would recommend them."
Response time8 hrs
Response rate94%
Recommended by95%of homeowners
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Radon Detection and Reduction questions, answered by experts

Testing every 2-5 years or upon adjusting occupancy or structural changes maintains safe environments.

Radon is the number one non-smoking cause of lung cancer in the United States, but it can cause some other concerning side effects in the meantime. If you have a raspy voice, chest pains, trouble breathing, difficulty swallowing, or any of the above, don’t hesitate to perform radon testing and install a mitigation system as soon as possible.

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.

Radon enters your home when warm air begins to rise and exits through the roof, creating a vacuum that pulls cooler air from under the foundation. Part of that air is radon, which is an invisible, odorless gas that develops naturally when radioactive particles are deep within the ground. Those particles usually come from decaying matter in soil and rocks.

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 Seymour, IN 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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