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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>

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: How often should you replace a radon fan?

• <div><p>Many radon fans carry a five-year manufacturer's warranty. That said, your radon fan should last between five and ten years. Regular inspections will ensure the fan is operating properly. Unusual or exceptional noise coming from the fan or indications on your manometer or system monitor can immediately tell you that something is amiss.</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 long can you go without a radon fan?

• <div><p>Your radon fan needs to operate 24/7 to be effective. The only time the fan isn't operating is during its replacement. Radon levels in the home can increase within hours if the fan stops working or something obstructs the stack vent. Fortunately, radon systems require no downtime maintenance between fan changes.</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(

)

Radon Gas - Testing

Serving Kittitas, WA and surrounding areas

In business since 1997

Free estimates

"Very prompt. Responded very quickly."

Recommended by100%of homeowners

Request Quote

SWAT Environmental, Inc.

1.8(

)

Radon Gas - Abatement

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

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.

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.

Many radon fans carry a five-year manufacturer's warranty. That said, your radon fan should last between five and ten years. Regular inspections will ensure the fan is operating properly. Unusual or exceptional noise coming from the fan or indications on your manometer or system monitor can immediately tell you that something is amiss.

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.

Your radon fan needs to operate 24/7 to be effective. The only time the fan isn't operating is during its replacement. Radon levels in the home can increase within hours if the fan stops working or something obstructs the stack vent. Fortunately, radon systems require no downtime maintenance between fan changes.

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

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•
Mar 18, 2026Mar 18, 2026
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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.