Top-rated radon detection and reduction specialists.

Best radon detection and reduction specialists near Somerset, CA

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

• <div><p>No level of radon is technically safe, but since it is present everywhere, complete avoidance is impossible. 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 preventative measures if your home's radon levels are between 2 and 4 pCi/L or higher.</p></div>

Q: How does radon enter my home?

• <div><p>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.</p></div>

Q: What would cause radon in a house?

• <div><p>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.</p></div>

Q: How long does radon mitigation take?

• <div><p>Installation typically takes 1-2 days, depending on the system and property layout.</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>

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

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

Reviewed in June 2026
: Kyle came out and did an inspection and was able to do the work the same day. I would highly recommend Straight Line roofing and construction. Kyle had excellent customer service!
Straight Line Roofing & Construction LLC
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Reviewed in February 2026
We hired Ray to handle a variety of framing and carpentry projects including repairs/replacement of decking, railings, stairs, siding, doors and windows. He is knowledgeable, dependable and on time, his prices are fair and his quality of workmanship excellent. He completed projects on our...
Ebbers Construction
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Reviewed in June 2025
Devin has completed many jobs for me including extensive drip system repair, stripping my decks and restaining, small repairs in my home including repairing sinks and caulking. I have called on Dunn Services several times and always appreciate his respect, responsibility, promptness and...
Dunn Right Carpentry
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Reviewed in January 2025
Lightning did a small fence repair for me. They were fast and efficient and did nice looking work. Price was reasonable. I recommend them.
Lightning Fence
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Reviewed in November 2024
We had a huge pine tree come down in a storm and block our whole driveway. ADS came out quickly and got the tree removed. They were professional and reasonably priced.
Alder Defensible Space Tree Service
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Reviewed in January 2024
We have used PMGS twice now and they have quite literally saved my life. I was suffering from mold toxicity in our current home and they abated and got rid of it and even treated a 2nd time before the warranty was up just for good measure. We used them again for mold testing and abatement on a...
Pure Maintenance Golden State, Inc.
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Reviewed in June 2023
Excellent. Ryan is professional and walked me through everything. I called and they answered the phone and came out the next morning. I was so impressed. I told all my neighbors and my realtor too so they would use his service. A total pro!!!
Murray Plumbing
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Reviewed in June 2023
All tree removal was completed as discussed with no problems. Very pleased with their work, they are very responsible and communicate well with the customer. Quick to respond to my request and price quote. They arrived the time and day as discussed and completed all work with out any...
Cain Brothers Inc.
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Reviewed in May 2023
Ryan was very efficient and educated me about why the pipe was leaking/clogged and how to avoid a clog in the future.
Murray Plumbing
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Reviewed in September 2022
Byron is very prompt with returning calls. Prices are reasonable and fair. Arrived on time with a team that was efficient, honest and hard working. We had several trees in desperate need of trimming to be fire compliant. They also dropped several trees for us and cut them into fireplace size....
Superior Tree Care
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Top-Rated Radon detection and reduction specialists in Somerset - Updated Nov 2026

MG Remediation, Inc.

3.3(

)

Radon Gas - Abatement

Serving Somerset, 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."

Response time4 days

Recommended by80%of homeowners

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Radon Detection and Reduction FAQs, answered by experts

No level of radon is technically safe, but since it is present everywhere, complete avoidance is impossible. 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 preventative measures if your home's radon levels are between 2 and 4 pCi/L or higher.

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.

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.

Installation typically takes 1-2 days, depending on the system and property layout.

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

The Somerset, 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

Mitchell Grant
•
Sep 28, 2026Sep 28, 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.
Alison Kasch
•
Oct 30, 2026Oct 30, 2026
How Much Does Radon Remediation Cost? [2026 Data]
Get clear answers on how much radon remediation costs, including average prices, key cost factors, and tips to save money on your home’s radon mitigation.
Angi
•
Sep 23, 2026Sep 23, 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.
Amy Freeman
•
Jul 9, 2026Jul 9, 2026
Who Installs Radon Mitigation Systems?
Radon is a gas that you can't see or smell and is harmful to your health. If your home has radon, you need to know who installs radon mitigation systems.
Jacqueline DeMarco
•
Jul 9, 2026Jul 9, 2026
What Is Radon and How Does It Get In Your Home?
What is radon gas? Find out what this radioactive gas is, why it is dangerous, how it gets in your home, and how to mitigate it.
Jacqueline DeMarco
•
Jul 9, 2026Jul 9, 2026
What Is Radon Testing?
What is radon testing? Radon testing measures the presence and concentration of radon gas within indoor environments. Read on to learn more.