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Best radon detection and reduction specialists near Spokane, WA

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Top-Rated Radon detection and reduction specialists in Spokane - Updated Nov 2026

Avatar for RADON TESTING & MITIGATION SOLUTIONS LLC
RADON TESTING & MITIGATION SOLUTIONS LLC
5.0(
8
)
Radon Gas - AbatementRadon Gas - Testing

Serving Spokane, WA and surrounding areas

Approved

In business since 2018

Free estimates

Warranties offered

"Your allowed service choices do not allow for Radon testing, etc. I highly recommend â Radon Testing & Mitigation Solutionsâ , specifically Mr. Bejar for his respectful, knowledgeable, professional, and prompt services. Thank you"
Monroe & Broadway
Monroe & Broadway
Brown's Addition
Spokane City Hall
Lennar Homes

+3

Response time4 hrs
Response rate98%
13 neighbors recently requested a quote
Avatar for CP Home Service
CP Home Service
5.0(
3
)
Radon Gas - Testing

Serving Spokane, WA and surrounding areas

Approved

Free estimates

Warranties offered

Credit card accepted

"Brian was really friendly and professional, and you could tell he was very thorough. He explained everything in a way that was easy to understand during the inspection, and the report he sent after was super detailed with pictures and notes on all the systems in the home. I especially liked that he included a section that called out the main issues to focus on. Overall, we were very happy with his service and would definitely recommend him to anyone."
Chimney inspection
Crawlspace
Old Roofing
Window Frame
Electrical Panel

+8

Avatar for Advanced Radon Technologies
Advanced Radon Technologies
4.5(
42
)
Radon Gas - Abatement

Serving Spokane, WA and surrounding areas

In business since 1971

Free estimates

Warranties offered

"Top notch! The owner is one of the top radon mitigation experts in the country. ART runs 7 full-time crews. The crew sent to our home was experienced and professional. The work quality was first rate."
Residential Systems
Residential Systems
Residential Systems
Residential Systems
Residential Systems

+11

Recommended by100%of homeowners
Avatar for Affordable Radon Services LLC
Affordable Radon Services LLC
5.0(
1
)
Radon Gas - AbatementRadon Gas - Testing

Serving Spokane, WA and surrounding areas

In business since 2011

"This company was professional from start to finish! Setting up the appointment was quick and easy, they showed up on time and were concerned with my needs. They wanted to make sure the system was going in the proper spot, both inside and outside, and wore a mask and booties the whole time. I was impressed and will hire them again!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+13

Recommended by100%of homeowners
Affordable Home Inspection, LLC
New to Angi
Radon Gas - Testing

Serving Spokane, WA and surrounding areas

In business since 2016

Free estimates

Credit card accepted

We pride our company on reliability, integrity and quality work. When Affordable Home Inspection, LLC is hired, we make it a point to provide the highest level of customer service. We work with both residential and commercial clients, and apply the same attention to detail regardless of project size or complexity. We look forward to earning your business! Thank you!

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Radon Detection and Reduction FAQs, answered by experts

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

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

Radon is the number one non-smoking cause of lung cancer in the United States, but it can cause some other concerning side effects in the meantime. If you have a raspy voice, chest pains, trouble breathing, difficulty swallowing, or any of the above, don’t hesitate to perform radon testing and install a mitigation system as soon as possible.

Yes, many systems include warranties for performance. Confirm terms with your installer.

No level of radon is technically safe, but since it is naturally present everywhere, it is impossible to avoid entirely. 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 action to reduce radon levels if your home's test results are between 2 and 4 pCi/L or higher.

The Spokane, 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.