Top-rated radon detection and reduction specialists.

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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: What are the health risks associated with radon exposure in homes?

• <div><p>Long-term exposure increases lung cancer risks. Prolonged homestay individuals and smokers encounter heightened vulnerability and exposure concerns.</p></div>

Q: Is radon a serious problem?

• <div><p>Radon is present almost everywhere but, like sunlight, the concentration levels and how often you are exposed to it have a large part to play in just how dangerous it is. There are levels of radon that are acceptable inside a house, but above a certain limit, radon becomes a serious radioactive hazard that is a known cause of lung cancer. In fact, radon exposure is the number two leading cause of lung cancer (after smoking).</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 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>

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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

)

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

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

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

208 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 questions, 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.

Long-term exposure increases lung cancer risks. Prolonged homestay individuals and smokers encounter heightened vulnerability and exposure concerns.

Radon is present almost everywhere but, like sunlight, the concentration levels and how often you are exposed to it have a large part to play in just how dangerous it is. There are levels of radon that are acceptable inside a house, but above a certain limit, radon becomes a serious radioactive hazard that is a known cause of lung cancer. In fact, radon exposure is the number two leading cause of lung cancer (after smoking).

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

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.

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.

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.
Alison Kasch
•
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
•
Apr 5, 2026Apr 5, 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
•
May 2, 2026May 2, 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
•
Apr 10, 2026Apr 10, 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.