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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: Why is radon gas abatement necessary for homes?

• <div><p>Radon is a cancer-causing radioactive gas that poses serious health risks, infiltrating homes through foundation cracks and unnoticed spaces.</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>

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: 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 Kittitas, WA

*The Angi rating for Radon Detection And Reduction companies in Kittitas, 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 Kittitas, 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 January 13, 2026

Reviewed in January 2026
I'm so pleased with the electrical work done by Mountain man Electric. Jed was courteous, prompt, and efficient. He listened carefully to what I needed, explained how he would do the job, then worked so fast, and the job was done well. He's friendly and helpful with great communication skills...
Mountain Man Electric LLC
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Reviewed in May 2025
Yes, I got the job done right it has been approved. And I couldn’t have asked for any more efficiency and service.! They have worked inside and outside of my house and all has been done correctly!
Nighthawk General Contractor LLC
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Reviewed in April 2025
I couldn?t be happier with the service provided by Evergreen Cleaning Co! The team was punctual, professional, and incredibly thorough. They paid attention to detail and used quality products. Highly recommend to anyone looking for reliable and top notch home cleaning!
Evergreen Cleaning Company
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Reviewed in March 2025
David, Carl and Ben were prompt. The team got right to work and trimmed my pine trees, suggested additional fire abatement and then downed the dead cottonwood on the back of my property. They worked with incredible efficiency, and did an awesome job cleaning up branches, twigs and pine needles. ...
David Marrs Trees LLC
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Reviewed in October 2024
Greg was great! He went out of his way to get to my location and stayed for a long time was very thorough. His report was detailed and very helpful. I've hired a lot of professionals in the last year and have had some real duds. Some really disappointing transactions. And Greg and Sherlock...
Surelock Homes Inspection Co.
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Reviewed in January 2024
Jory and his crew helped me clean up a big maple that failed. They showed up on time and worked hard. I would highly recommend them for any project!
Schmidt Dirt Works
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Reviewed in June 2023
Very fast and thorough, brings the help he needs to get it done and shows up when he's supposed to
Best Electrician Only, LLC
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Reviewed in July 2022
Brandon did a very detailed inspection and helped me better understand what needed to be done with multiple layers of old roofing material. He then detailed the options available and let me decide what I wanted to do. Appreciated his conscientious approach and would highly recommend.
DaBella - Yakima (Roofing)
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Reviewed in July 2022
The technician was professional and friendly. He clearly knew what he was doing and performed his work quickly and efficiently. He resolved my issue in a relatively short amount of time. I would definitely hire them again and recommend them to anyone needing HVAC service.
Vance Heating & Air Conditioning
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Reviewed in April 2022
Gavin was very prompt, did a great job pruning fruit trees , and removal of a tree and cleaned everything up! Highly recommend and worth every penny!
Denney Improvements, LLC
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Find Radon detection and reduction specialists in Kittitas

Environmental Technology Consultants

4.9(

)

Serving Kittitas, WA and surrounding areas

In business since 1997

Free estimates

"Very prompt. Responded very quickly."

Recommended by100%of homeowners

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SWAT Environmental, Inc.

1.8(

)

Serving Kittitas, 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

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.

Radon is a cancer-causing radioactive gas that poses serious health risks, infiltrating homes through foundation cracks and unnoticed spaces.

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.

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

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 Kittitas, 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
•
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
•
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.