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Q: What is the biggest source of radon?

• <div><p>The soil beneath your house is most likely what&rsquo;s causing an increased level of radon. This is because soil holds radioactivity for a long time and it&rsquo;s also what most buildings are built on. Another common source of radon is water from a source that hasn&rsquo;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.</p></div>

Q: Do radon mitigation systems decrease home value?

• <div><p>No, radon mitigation systems do not decrease home value or make a home harder to sell. In areas where homes experience similar radon exposure risks, a radon mitigation system is viewed as an improvement. Potential homebuyers often opt to buy a home with a radon mitigation system already installed to reduce the risk of cancer for their families.</p></div>

Q: What steps should be taken if high radon levels are detected?

• <div><p>If high radon levels are detected, steps include sealing entry points, installing a mitigation system, and retesting the air regularly to ensure reduced levels.</p></div>

Q: What level of radon is considered safe or dangerous?

• <div><p>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.</p></div>

Q: How long does the radon abatement process usually take?

• <div><p>Mitigation can take several days depending on home setup, equipment accessibility, and achieving effective diffusion system sealed efficiency.</p></div>

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Verified Reviews for Radon Detection And Reduction pros in Maricopa, CA

*The Angi rating for Radon Detection And Reduction companies in Maricopa, 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 Maricopa, 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 29, 2026

Reviewed in May 2026
I recently hired VMG Plumbing to complete several repairs at my home, and I could not be more impressed with the experience. From the very beginning, Bineto demonstrated exceptional professionalism, knowledge, and attention to detail. He not only addressed the issues I was aware of, but also...
VMG Plumbing Co
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Reviewed in January 2026
Daniel came out promptly and fixed our electric issue within minutes! He came prepared and knew exactly what to do. We are super lucky and grateful to have had Daniel?s expertise in regards to our issue. ???? We highly recommend Daniel for any ekectric service calls!
Sand Electric
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Reviewed in May 2025
Pedro cleared all the overgrown weeds from my properties. He came on the day he promised to comply with the brush clearance deadline. He provided me with photos and videos of his work and made recommendations to apply a product before the rainy season that will reduce weed growth. He also...
BG Landscapes
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Reviewed in February 2024
Recovery electric helped me when I was in a real time of need. A tree fell and crushed my main feed to my electrical panel. Josh was able to come and get the problem fixed in one day.
Recovery Electric, LLC
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Reviewed in December 2023
Top notch service and extremely friendly. I wouldn't think of using anyone else for this service after experiencing Pro Movers. Can't say enough good things. Highly recommend!!!
Pro Movers
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Reviewed in October 2023
Xander's Coats Specialist just completed painting our ranch house. We had recently purchased the property and the exterior was in dire need of painting. The location is in a remote part northern Santa Barbara County and we put a request out on Angi's List since there are no paint contractor's in...
Xander's Coats Specialists
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Reviewed in July 2023
These guys are awesome!!!! They answered the phone when I called and were very prompt and professional . They work clean and fast . I will definitely highly recommend them for any of your garage door needs.
Classic Door and Dock, LLC
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Reviewed in September 2022
The rep Brian was very professional and clearly explained everything.
EnergyAid
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Reviewed in July 2022
Continental Remediation Services provided incredible service when our office flooded and needed immediate attention for moisture control and mold prevention! Dean and his crew showed up within the hour and got right on the problem. They were very knowledgeable and answered any questions we had....
Continental Remediation Services
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Reviewed in May 2022
I never expect perfection, but what I do look for in a company is how well they react when I find something that has slipped by the employees, and R-Insulation got an A+. I noticed something that needed to be addressed and they made it right without any pushback at all. I highly value that kind...
R - Insulation
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Radon Detection and Reduction questions, answered by experts

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.

No, radon mitigation systems do not decrease home value or make a home harder to sell. In areas where homes experience similar radon exposure risks, a radon mitigation system is viewed as an improvement. Potential homebuyers often opt to buy a home with a radon mitigation system already installed to reduce the risk of cancer for their families.

If high radon levels are detected, steps include sealing entry points, installing a mitigation system, and retesting the air regularly to ensure reduced levels.

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.

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

The Maricopa, 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.

See all articles

Angi
•
Mar 18, 2026Mar 18, 2026
How Much Does Radon Testing Cost? [2026 Data]
Find out what impacts radon testing costs, including average prices for DIY kits and professional services, so you can protect your home and budget confidently.
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•
Mar 18, 2026Mar 18, 2026
How Much Does a Radon Mitigation System Cost? [2026 Data]
The cost of a radon mitigation system depends mostly on the type of system being installed. Use this guide to learn about your options.
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Apr 6, 2026Apr 6, 2026
How Much Does Radon Remediation Cost? [2026 Data]
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Thinking about refinishing your basement? A bit of planning can go a long way. Here's everything you need to know to get started.
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May 3, 2026May 3, 2026
How to Test for Radon in Your Home
Knowing how to test for radon will keep your home free and safe from this odorless gas—you just have to decide whether to do it yourself or hire a pro.
Kyle Schurman
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May 21, 2026May 21, 2026
How Does a Radon Mitigation System Work? And How Do You Keep Yourself Safe?
How does a radon mitigation system work? Learn more about how it pulls air and radon from the soil and expels it before it can enter your house.