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*The Angi rating for Radon Detection And Reduction companies in Arroyo Grande, 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 Arroyo Grande, 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 June 10, 2026

Find Radon detection and reduction specialists in Arroyo Grande

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

Serving Arroyo Grande, 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 At Eazz Restoration LLC
At Eazz Restoration LLC
5.0(
3
)
Radon Gas - Testing

Serving Arroyo Grande, CA and surrounding areas

In business since 2023

Free estimates

Emergency services offered

"They are a very professional business. They are very knowledgeable and concerned about your needs. They will put you issues at EAZZ!!! Ernie was very helpful with all questions asked. Bianca was extremely knowledgeable in the insurance industry as she was also amazing and professional. I would highly recommend At EAZZ for any water restoration/mold/asbestos."
Additional Photos
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Additional Photos

+7

Recommended by100%of homeowners
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Radon Detection and Reduction questions, answered by experts

Radon detection is crucial as prolonged exposure to radon gas, a leading cause of lung cancer, poses significant health risks in residential environments.

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.

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.

Yes, many systems include warranties for performance. Confirm terms with your installer.

Ideally, no one will live in a house with elevated radon levels, as prolonged exposure increases the risk of serious health issues like lung cancer. However, homes with radon can be made safe through mitigation systems, such as active soil depressurization. Testing for radon regularly and addressing high levels helps ensure a safe living environment.

The Arroyo Grande, 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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