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*The Angi rating for Radon Detection And Reduction companies in Oak Hills, 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 Oak Hills, 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 March 18, 2026

Find Radon detection and reduction specialists in Oak Hills

Avatar for Roof Rx
Roof Rx
4.2(
1,190
)
Radon Gas - AbatementRadon Gas - Testing

Serving Oak Hills, CA and surrounding areas

In business since 1998

Free estimates

Emergency services offered

"not that great. basically paid $99 to get an estimate. included cleaning roof and minimal repairs. took a while to get appointment, and then when they came, they didn't even do the work! gave a really big estimate and then re-seheduled to have someone else do the work. they wouldn't totally replace the roof, gave different estimates to repair, I went with a different company to do a full roof rplacement."
Additional Photos
Roof Leak Repair - Step 1
Roof Leak Repair - Step 2
Roof Leak Repair
Recommended by81%of homeowners
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Avatar for Simplistic Water Restoration
Simplistic Water Restoration
5.0(
5
)
Radon Gas - AbatementRadon Gas - Testing

Serving Oak Hills, CA and surrounding areas

Free estimates

Emergency services offered

Credit card accepted

"They were very responsive, very quiet, very clean. They protected the house with sheeting and they took care of the paper works and testing and they make sure that it was tested and everything was up to code. They also help me to find out people to rebuild the kitchen."
Mold remediation
Mold inspection & remediation
Mold remediation
Mold remediation
Mold remediation

+39

Recommended by100%of homeowners
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Radon Detection and Reduction questions, answered by experts

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

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.

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.

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

Mitigation can take several days depending on home setup, equipment accessibility, and achieving effective diffusion system sealed efficiency.

The Oak Hills, 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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