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*The Angi rating for Radon Detection And Reduction companies in Hanford, CA 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 Hanford, CA 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 May 01, 2026

Find Radon detection and reduction specialists in Hanford

Avatar for MG Remediation, Inc.
MG Remediation, Inc.
3.3(
8
)
Radon Gas - Abatement

Serving Hanford, CA and surrounding areas

Approved

In business since 1986

Free estimates

Customers say: Quick response

"Peter and his team at MG Remediation are professionals. They did everything they told me they would do and the radon levels dropped significantly. Great communication, too, which always matters."
Vapor Intrusion for VOC and Radon
Cleaning
Cleaning
Testing
Testing & Abatement

+4

Response time4 days
Recommended by80%of homeowners
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Avatar for Plata Construction
Plata Construction
4.4(
21
)
Radon Gas - AbatementRadon Gas - Testing

Serving Hanford, CA and surrounding areas

In business since 2003

Free estimates

"My background is 35 years construction and after hiring Jeremy Plata (Plata Construction) to remodel my office, I knew right away I hired the right contractor!! Very affordable but high quality performance!!! I was very impressed at how well Jeremy coordinated his crews to meet my deadline and the job turned out amazing. Terry King"
Plumbing Project
Plumbing Project
Plumbing Project
Additional Photos
Additional Photos

+12

Recommended by89%of homeowners
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Avatar for Central Valley Water Restoration
Central Valley Water Restoration
5.0(
5
)
Radon Gas - Testing

Serving Hanford, CA and surrounding areas

In business since 2023

Free estimates

Emergency services offered

"Tiko and Central Valley Water Restoration got to my house within an hour of me calling and they dried the house up and demolished what needed to be demolished and built it back up . They were fast and amazing. They truly care about the customer."
Water Mitigation
Water Mitigation
Water Mitigation
Water Mitigation
Water Mitigation

+27

Recommended by80%of homeowners
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Radon Detection and Reduction questions, answered by experts

The cost to replace a radon fan ranges from $300 to $600 for the fan itself, with installation adding an additional $200 to $500. Overall, the total cost for replacement can range from $500 to $1,100, depending on factors such as the fan model, home size, and local labor rates. If the fan is part of a larger radon mitigation system, the price may be higher.

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 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.

There are steps you can take as a homeowner to remediate radon yourself. While a radon reduction professional can make the biggest impact in your home, you can make efforts to improve radon levels on your own by sealing cracks, increasing ventilation, and testing for radon regularly.

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 Hanford, CA 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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