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Verified Reviews for Radon Detection And Reduction pros in San Mateo, CA

*The Angi rating for Radon Detection And Reduction companies in San Mateo, CA 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 San Mateo, CA 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 31, 2026

Find Radon detection and reduction specialists in San Mateo

Avatar for Fire & Water Damage Recovery
Fire & Water Damage Recovery
4.7(
69
)

Serving San Mateo, CA and surrounding areas

In business since 1997

Free estimates

Emergency services offered

"The experience with Justin at Fire & Water Damage Recovery was excellent. They were referred by the plumbing company that serviced my sump pump. We still got 3 estimate, Justin's estimate was in the middle but I felt good with Justin based on our phone conversation and the referral so we went with this company. Justin did tell me that he might have estimated on the high side because he does not like to surprise the homeowners. What a surprise when I go the final invoice. The final invoice came in much lower and was very close or lower than the lowest estimate I got. Justin and his team also took pictures of how the place was before and after for me to see. They even took pictures of the pathway that they took to get to the crawl space to assure me that they kept the place clean when they got in and out. I was very satisified with Justin and his company."
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+27

Recommended by88%of homeowners
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Avatar for S & Y Corp
S & Y Corp
4.6(
18
)

Serving San Mateo, CA and surrounding areas

In business since 1991

Free estimates

Emergency services offered

"Everything was fine.  I had no complaints.  I was just basically getting quotes from a few companies.  They did the job they were supposed to do while giving me a quote. "
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Recommended by93%of homeowners
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Radon Detection and Reduction questions, answered by experts

If high radon levels are detected, steps include sealing entry points, installing a mitigation system, and retesting the air regularly to ensure reduced levels.

Options include sub-slab depressurization, crawlspace ventilation, and sealing cracks. Choose based on home construction and radon levels.

Long-term exposure increases lung cancer risks. Prolonged homestay individuals and smokers encounter heightened vulnerability and exposure concerns.

Radon detection is crucial as prolonged exposure to radon gas, a leading cause of lung cancer, poses significant health risks in residential environments.

Radon is present almost everywhere but, like sunlight, the concentration levels and how often you are exposed to it have a large part to play in just how dangerous it is. There are levels of radon that are acceptable inside a house, but above a certain limit, radon becomes a serious radioactive hazard that is a known cause of lung cancer. In fact, radon exposure is the number two leading cause of lung cancer (after smoking).

The San Mateo, CA 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.

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