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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 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 the radon abatement process usually take?

• <div><p>Mitigation can take several days depending on home setup, equipment accessibility, and achieving effective diffusion system sealed efficiency.</p></div>

Q: How often should radon levels be tested to ensure safety?

• <div><p>Testing every 2-5 years or upon adjusting occupancy or structural changes maintains safe environments.</p></div>

Q: Can I install my own radon mitigation system?

• <div><p>A <a href="https://www.angi.com/articles/can-homeowners-install-radon-mitigation-systems.htm">homeowner can install a radon mitigation system</a> on their own. But it&rsquo;s a challenging DIY that requires a lot of knowledge about radon mitigation as well as familiarity with local regulations. You do not want to risk an improper installation that leaves the system unable to detect radon or gives it a shortened life span. Relying on a professional is the surest way to guarantee a successful installation.</p></div>

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Verified Reviews for Radon Detection And Reduction pros in Goldendale, WA

*The Angi rating for Radon Detection And Reduction companies in Goldendale, WA 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 Goldendale, WA 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 May 30, 2025

Reviewed in May 2025
Mel's Plumbing was quick to respond and addressed my leaking water heater. He provided service within 24 hours, was friendly and knowledgeable with all my many questions. We will be using him again in the future for all our plumbing needs!!
Mel's Plumbing Services
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Reviewed in September 2024
Great guy good and fast work! I would call him again.
RANDY'S PLUMBING, LLC
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Reviewed in March 2024
I had a tree that fell on my house so R&R came in and removed it and fixed up the attic! They put in the insulation and completed the job really well!
Rutman Restoration
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Reviewed in November 2023
Thomas did an immaculate job building my custom home. He was very detail oriented and was not satisfied until the work met his high standards. I would recommend him to anyone looking to hire someone who is considering building a home.
Stevenson Homes
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Reviewed in February 2023
I ran out of propane and called the office and ordered a refill. I was told they would get to me as soon as possible. I don't think it was twenty minutes or a little longer and my tank was filled. I couldn't believe it was filled that fast! Thank you for a speedy order delivery. Excellent job,...
KERNS SHOP PROPANE
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Reviewed in July 2022
These were a couple of knowledgable, hard-working guys, who did a great job, in a timely manner and cleaned up after themselves.
Sky Heating & Air Conditioning Inc
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Reviewed in June 2022
Dave was awesome. He worked thru the changes we requested in no time. During the initial design he explained why he chose to design and construct our new home with specific materials. He explained all the design criteria in words we understood and spent countless hours discussing windows. His...
Carmen Associates
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Reviewed in February 2022
They are very hard workers and responsable. My roofing was done at time. Also, they are very clean. My brothers check my roofing, and they told me that they did an excellent job.
Cordova Construction, LLC
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Reviewed in December 2020
Our cedar siding was in rough shape when we bout our house. Quad came out and re-stained the house, garage and painted our barn. They were very helpful and patient with our requests.
Quad Construction, Inc.
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Reviewed in December 2020
it went really wll they showe up on time they did everything they say and hey were polite to people round the and they didn't leave any mess.
Alpha Roofing
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Find Radon detection and reduction specialists in Goldendale

Alpha Environmental Services Inc

4.7(

134

)

Radon Gas - AbatementRadon Gas - Testing

Serving Goldendale, WA and surrounding areas

Approved

In business since 2002

Free estimates

Warranties offered

"I have use Alpha on a couple of my houses now. Each time, they have been very professional, timely and explain the situation very well. They present all the options and arrive as promised"

Response time1 day

Response rate100%

Recommended by85%of homeowners

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Environmental Technology Consultants

4.9(

)

Radon Gas - Testing

Serving Goldendale, WA and surrounding areas

In business since 1997

Free estimates

"James offered some suggestions regarding our home. I am doing as he suggested to see if the recommendations eliminates the air quality and concern there may be mold. He offered inside & outside advise for venting and reroofing."

Recommended by100%of homeowners

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Gorge Quality Home Inspection

5.0(

)

Radon Gas - Testing

Serving Goldendale, WA and surrounding areas

In business since 2019

"Greg is always prompt in responding to scheduling and has a quick turnaround on reports too. I like his reports because they have plenty of pictures and he takes the time with buyers to answer any questions whether it be on site or following up on the report."

Recommended by100%of homeowners

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SWAT Environmental, Inc.

1.8(

)

Radon Gas - Abatement

Serving Goldendale, WA and surrounding areas

In business since 1988

Free estimates

Credit card accepted

"The work was fine, I haven't retested yet."

Recommended by50%of homeowners

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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.

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.

Mitigation can take several days depending on home setup, equipment accessibility, and achieving effective diffusion system sealed efficiency.

Testing every 2-5 years or upon adjusting occupancy or structural changes maintains safe environments.

A homeowner can install a radon mitigation system on their own. But it’s a challenging DIY that requires a lot of knowledge about radon mitigation as well as familiarity with local regulations. You do not want to risk an improper installation that leaves the system unable to detect radon or gives it a shortened life span. Relying on a professional is the surest way to guarantee a successful installation.

The Goldendale, WA 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
•
Aug 3, 2026Aug 3, 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
•
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.