How do you prevent radon in your home?

• <div><p>Keeping radon from getting into your home is much better than having to get rid of it once it's already indoors. While there may not be a way to fully prevent radon from getting into your home, there are things you can do to reduce the gas's ability to enter. </p><p>Sealing foundation cracks and openings can help keep the gas from seeping inside. Improving air flow, such as by opening windows, can also be helpful. If you're building your home from scratch, talk to your contractor about using radon-resistant construction to keep the gas out.</p></div>

Top-rated radon detection and reduction specialists.

Get matched with top radon detection and reduction specialists in Astoria, OR

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 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 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: 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>

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Verified Reviews for Radon Detection And Reduction pros in Astoria, OR

*The Angi rating for Radon Detection And Reduction companies in Astoria, OR 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 Astoria, OR 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 December 11, 2025

Reviewed in December 2025
The patch work was completed and looks great.
EMMANUEL JM CONSTRUCTION, LLC
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Reviewed in October 2025
Tyler was hyper responsive to my initial contact, with the first physical visit and all texts and communications. He was knowledgeable about a broad amount of issues the property needed repaired and they completed the fairly significant job on time and beyond expectations. Will definitely be...
West Lake Construction, LLC
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Reviewed in September 2025
Pluum came out and tackled a complicated foundation fix and report with drainage work and everything. They got the job done on time and on budget. Definitely recommended.
Pluum Concrete
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Reviewed in July 2025
Wanted a concrete pad but Derek noted major drainage problems. He removed grass and dirt and graded and installed new sod plus the pad. I am very pleased with the work as is the neighborhood!
Green Hills Construction
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Reviewed in April 2025
4Ego and the crew did a great job. Everything was on time and anytime that I had a question, Jonathon, the mgr was quick to respond and followup. I will use them again if the need arises!😀👍
4EGO LLC
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Reviewed in September 2024
Prompt and friendly service. Jeff and Yori did a great job. My 1922 Crafstman may never had had its ducts cleaned before. Very happy with their service. Would hire again.
Achates Services
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Reviewed in August 2024
Great. It was completed in a timely manner. Cleanup was very good, and the workers were very polite and knowledgeable.
Marks Custom Exteriors Inc
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Reviewed in January 2022
They responded quickly, did the work professionally, and were careful to respect my property and clean up after themselves while doing the job and once the job was finished. They were polite and I will use them for more work.
Mike Home Improvements
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Reviewed in November 2021
11-5-2021 Dabella employees Kyle and Eldric came to our home on the NW Oregon coast and gave us a bid on a complete roof, gutters, skylights and fascia board replacement for our home. This was the 2nd time Dabella had been to our home to present their roof system, and project bid to us. After...
DaBella - Portland
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Reviewed in November 2021
11-5-2021 Dabella employees Kyle and Eldric came to our home on the NW Oregon coast and gave us a bid on a complete roof, gutters, skylights and fascia board replacement for our home. This was the 2nd time Dabella had been to our home to present their roof system, and project bid to us. After...
DaBella - Portland (Roofing)
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Find Radon detection and reduction specialists in Astoria

Alpha Environmental Services Inc

4.7(

134

)

Serving Astoria, OR and surrounding areas

Approved

In business since 2002

Free estimates

Warranties offered

"From initial inspection to mitigation was about a week. Technician were punctual and finished within time estimated."

Response time1 day

Recommended by85%of homeowners

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John's Waterproofing Co.

4.0(

)

Serving Astoria, OR and surrounding areas

Approved

In business since 1974

Free estimates

Warranties offered

"This work crew of Lupe, Waldo, and Rene did an OUTSTANDING job; this is hard work, these (3) dedicated hombres did an incredible job for us. We are so grateful for these three men. I easily recommend this crew to you, very reliable, honest, trustworthy and friendly. Best in the Business. Muchas gracias amigos!!! We love these guys!"

+38

Response time6 hrs

210 neighbors recently requested a quote

Recommended by93%of homeowners

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SWAT Environmental, Inc.

3.9(

)

Serving Astoria, OR and surrounding areas

In business since 1988

Free estimates

Credit card accepted

"This company was great to work with. They had an opening in their schedule and completed the job earlier than expected."

Recommended by90%of homeowners

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Pure Maintenance Cascades

5.0(

)

Serving Astoria, OR and surrounding areas

"It was good. They took care all of the smell in the house. They showed up on time. It was a good experience."

Recommended by100%of homeowners

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ICON HOME INSPECTION SERVICES LLC

New to Angi

Serving Astoria, OR and surrounding areas

In business since 2024

Free estimates

Credit card accepted

Over the last 25 years serving in military, medical, commercial, and residential construction and building maintenance service industries. Providing top-tier services and customer service satisfaction is always my number one priority. Your home purchase will be my number one priority. At Icon Home Inspections, we believe in continued education, staying with the current market trends, and building techniques and materials. Allowing us to educate you and your family on your home purchase, ensuring you have the knowledge and peace of mind you need when buying or selling a home. Reach out for inspections that go beyond basics giving you a clear picture of your properties condition.\n\nCCB #254120\nOCHI #2772\n\nCall us today you'll be pleased you did. Thank you

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Radon Detection and Reduction questions, answered by experts

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.

Keeping radon from getting into your home is much better than having to get rid of it once it's already indoors. While there may not be a way to fully prevent radon from getting into your home, there are things you can do to reduce the gas's ability to enter.

Sealing foundation cracks and openings can help keep the gas from seeping inside. Improving air flow, such as by opening windows, can also be helpful. If you're building your home from scratch, talk to your contractor about using radon-resistant construction to keep the gas out.

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 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.

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 Astoria, OR 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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