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Find Radon gas testers in Spokane

Avatar for Northern Lights Mitigation and Consulting
Northern Lights Mitigation and Consulting
5.0(
8
)

Serving Spokane, WA and surrounding areas

Angi Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"They were friendly and quick with getting the job done."
Bathroom Mold
Bathroom Mold
Bathroom Mold
Bathroom Mold
Bathroom Mold

+7

Response time1 day
Response rate96%
4 neighbors recently requested a quote
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Avatar for Cascade Radon Inc
Cascade Radon Inc
4.9(
157
)

Serving Spokane, WA and surrounding areas

In business since 1990

Free estimates

Emergency services offered

"Excellent from beginning to end. Very professional outfit from initial visit, quote, scheduling, work, followup. Price was reasonable, work quality went above and beyond, and radon levels dropped well below even the contractual level."
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+2

Recommended by99%of homeowners
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Avatar for Evergreen Property Inspection LLC
Evergreen Property Inspection LLC
5.0(
61
)

Serving Spokane, WA and surrounding areas

In business since 2010

Free estimates

Credit card accepted

"Excellent! Evergreen was the most thorough home inspection I’ve experienced and Sean was very helpful and took the time to review all of our concerns from the inspection together. Many thanks!"
Recommended by100%of homeowners
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Avatar for Radon Be Gone Corp
Radon Be Gone Corp
4.9(
39
)

Serving Spokane, WA and surrounding areas

In business since 2008

Free estimates

Emergency services offered

"Product is very good quality. Installation was excellent, everything was explained very well. Price is great and no pressure to up sell anything. I would recommend Radon Be Gone to anyone."
work vehicles
Additional Photos
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+7

Recommended by100%of homeowners
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Avatar for CDA Inspectors
CDA Inspectors
4.8(
20
)

Serving Spokane, WA and surrounding areas

In business since 1994

Free estimates

Emergency services offered

"Jeanne is AMAZING! We hired the CDA Inspectors to inspect the house we are currently under contract with; Jeanne was thorough, very observant, so easy to work with and listened to our concerns. The report she sent was very detailed to include recommendations for the issues she uncovered. 47 pages of detailed information leaves little to the imagination so kudos to a nice in-depth look on things we needed to know. Thank you so, so much, Jeanne for alleviating my anxieties and for your most professional, superb and genuine care service!! HIGHLY RECOMMEND!"
Recommended by95%of homeowners
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Advanced Radon Technologies, Inc.
4.3(
11
)

Serving Spokane, WA and surrounding areas

Free estimates

Advanced Radon Technologies, Inc. has actively been working in the radon industry since 1990. With our unique combination of patented radon testing equipment and HVAC design experience, we offer capabilities not found in any other radon firm in the United States. As a licensed contractor, our staff have completed radon mitigation projects ranging from the 9-story U.S Federal Courthouse/U.S. Post Office in Spokane, to several school districts to thousands of single family residences.

Recommended by90%of homeowners
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Avatar for Pure Maintenance of Washington
Pure Maintenance of Washington
5.0(
3
)

Serving Spokane, WA and surrounding areas

In business since 2018

Free estimates

Credit card accepted

"Great! Pure Maintenance was friendly and professional. They did a great job and even checked in afterwards to make sure we were happy with their work."
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Recommended by100%of homeowners
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Showing 1-10 of 20
FAQs for radon gas testing projects in Spokane, WA

Radon is the second leading cause of lung cancer in the U.S. The gas seeps through cracks in foundations and collects in basements and other low areas. Once you breathe it in, radioactive particles lodge in lung tissue and do long-term damage. Because you can’t see or smell radon, the EPA recommends testing your home every two years—and after major renovations—to keep your family safe.

Yes—every home should be tested. The EPA advises doing it at least every two years and any time you remodel, buy, or sell. On average, one in 15 houses nationwide sits above the recommended limit, and the only way to know where yours stands is a formal test. The equipment simply measures gas levels and won’t change your indoor environment, so the process is completely harmless.

Certified radon professionals—often home inspectors or dedicated radon mitigation contractors—handle testing. These radon testing professionals follow EPA protocols and use calibrated instruments to check levels throughout your house. Hiring a certified radon specialist means results you can trust for real estate deals, insurance requirements, and, most importantly, your family’s health.

Inspectors specialize in measuring radon gas levels, while licensed mitigation contractors design and install the systems that remove it. If your test comes back high, your inspector can point you to a qualified mitigation pro who will size and install the right fan, piping, or other equipment to bring levels down.

No—standard home air purifiers don’t touch radon. They’re built to trap dust and pollen, not radioactive gas. If testing shows high levels, you’ll need a dedicated mitigation system that vents the gas from beneath your home to the outdoors. Relying on a room purifier alone won’t keep your indoor air safe.

Opening a few windows in your home might dilute radon for a short time, but the gas seeps back in as soon as they’re closed. For a lasting fix, you’ll need a professional mitigation system—often a sub-slab depressurization fan—that pulls radon from beneath the foundation and safely vents it outside.

The Spokane, WA homeowners’ guide to radon gas testings

From average costs to expert advice, get all the answers you need to get your job done.

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