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Q: What if radon is still high after mitigation?

• <div><p>You'll need to test your home for radon after installing the mitigation system, then again every two years. If radon remains elevated, contact a licensed radon professional, either the contractor who installed the system or a different one, and have them evaluate the system. They may need to make some changes to improve its effectiveness and performance.</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: 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: 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: How much does a radon mitigation system cost?

• <div><p>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.</p></div>

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Verified Reviews for Radon Detection And Reduction pros in Shenandoah, PA

*The Angi rating for Radon Detection And Reduction companies in Shenandoah, PA 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 Shenandoah, PA 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 July 16, 2026

Reviewed in July 2026
They were fast and professional very friendly and they came in did a great job I highly recommend Ski Solutions ,I wouldn&#39;t high anyone else. It looks great.
Ski Solutions
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Reviewed in December 2025
Mike took care of everything. Had new panel and meterbase and weather head installed in under 5 hours. Inspected and signed off. It was a pleasure to work with him.
MB Electric
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Reviewed in June 2025
If you're looking for a stress free and enjoyable experience then there's no other option than to choose Vincent as your realtor. He was beyond exceptional and very knowledgeable.
Vincent Kates Jr. - Keller Williams Newtown
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Reviewed in June 2025
Mechanic is super handful he unlocked my door in seconds and changed my door lock and he also replaced motor on my garage door, prices are very reasonable,I highly recommend their service
Brooklyn Urban Locksmith, Inc.
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Reviewed in July 2024
Excellent. We called to have about 1/3 of an entire poplar removed. It crashed down onto our deck, and did some damage. It laid right in front of our cabin door. I made the call to 4 tree service companies, and, Jake from Higleyâ s called me back in just under an hour, and another hour later,...
Higley Tree Care
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Reviewed in May 2024
He solved my problem with the squirrels in my eaves. Itâ s been about three months, and still no issues with squirrels. Great service, very professional, and an overall super nice guy!!
Trapper Marty
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Reviewed in June 2023
Isaac did a great job. Very professional and personable and described the treatment he was providing and why.
Green Pest Solutions
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Reviewed in June 2023
Safety and effectively cut and removed trees off my land, as well as removing all debris and overgrown vegetation and obstacles throughout the yard.
B&C Cleaning
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Reviewed in May 2023
Very pleased with the roofing job done by Jeffk Roofing...easy communication, the job was started and completed in a timely manner, and the price was reasonable. I would definitely recommend them and hire them again for other projects.
Jeff K Roofing INC.
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Reviewed in May 2023
Poletti Excavating did a great job! Fast and efficient and Would definitely hire again.
Poletti Excavating
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Find Radon detection and reduction specialists in Shenandoah

The Radon Bros

5.0(

)

Radon Gas - AbatementRadon Gas - Testing

Serving Shenandoah, PA and surrounding areas

Approved

Super Service Award Winner

In business since 2018

Free estimates

Warranties offered

"Replaced our aging radon fan for a reasonable price."

8 neighbors recently requested a quote

Recommended by66%of homeowners

Radon Gas - AbatementRadon Gas - Testing

Serving Shenandoah, PA and surrounding areas

Approved

In business since 2017

Free estimates

Customers say: Quick response

"I would definitely recommend C&S home inspections! I had a Radon Mitigation system installed and had nothing but a positive experience. They are extremely knowledgeable and friendly. They explained everything I needed to know thoroughly, which is important to me. Their prices are also the best have seen in my area. If you need a Radon Mitigation System, I highly recommend."

2 neighbors recently requested a quote

Recommended by96%of homeowners

Serving Shenandoah, PA and surrounding areas

In business since 1993

Free estimates

Credit card accepted

We're a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We specialize in radon gas testing and abatement. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!

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Radon Detection and Reduction questions, answered by experts

You'll need to test your home for radon after installing the mitigation system, then again every two years. If radon remains elevated, contact a licensed radon professional, either the contractor who installed the system or a different one, and have them evaluate the system. They may need to make some changes to improve its effectiveness and performance.

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.

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 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 Shenandoah, PA 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
•
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]
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
•
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.
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.