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*The Angi rating for Radon Detection And Reduction companies in Fredonia, KS 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 Fredonia, KS 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 February 24, 2026

Find Radon detection and reduction specialists in Fredonia

Avatar for Ad Astra Radon Solutions
Ad Astra Radon Solutions
New to Angi

Serving Fredonia, KS and surrounding areas

Free estimates

Warranties offered

Small jobs welcome

With 5+ years of professional radon experience you can trust Ad Astra Radon Solutions to make your home safer & healthier. We provide both radon mitigation and radon testing services as well as crawlspace encapsulation. We are certified to perform both radon mitigation and testing with the state of Kansas as well as with the NRPP.\n\nWe have experience mitigating new construction and existing family homes. Call us today for a free consultation!

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Radon Detection and Reduction questions, answered by experts

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 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.

Options include sub-slab depressurization, crawlspace ventilation, and sealing cracks. Choose based on home construction and radon levels.

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 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.

The Fredonia, KS 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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