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.

Best radon detection and reduction specialists near Astoria, OR

Q: How do I test for radon gas?

• <div><p>Use a radon test kit or hire professionals to conduct a detailed assessment of radon levels in your home.</p></div>

Q: Is it okay to live in a house with radon?

• <div><p>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.</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 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>

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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.
MCE Roofing Services
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Reviewed in January 2023
Juan at HPR roofing is friendly, prompt, and has excellent customer service. He is always quick and accommodating to provide a bid, and has been able to complete jobs extremely quickly. He is my first call whenever I run across a roofing or siding issue in my business.
HPR Roofing and Siding llc
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Reviewed in October 2022
We have used them a few times and they do very good work. They went above and beyond!
Chris Cory Excavating, LLC
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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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Top-Rated Radon detection and reduction specialists in Astoria - Updated Nov 2026

Alpha Environmental Services Inc

4.7(

134

)

Radon Gas - AbatementRadon Gas - Testing

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

Response rate100%

Recommended by85%of homeowners

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John's Waterproofing Co.

4.0(

)

Radon Gas - AbatementRadon Gas - Testing

Serving Astoria, OR and surrounding areas

Approved (Corporate)

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

107 neighbors recently requested a quote

Recommended by93%of homeowners

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SWAT Environmental, Inc.

3.9(

)

Radon Gas - Abatement

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(

)

Radon Gas - AbatementRadon Gas - Testing

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

Radon Gas - Testing

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 FAQs, answered by experts

Use a radon test kit or hire professionals to conduct a detailed assessment of radon levels in your home.

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.

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.

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.

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.

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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•
Sep 28, 2026Sep 28, 2026
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What is radon testing? Radon testing measures the presence and concentration of radon gas within indoor environments. Read on to learn more.