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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
)

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
)

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

The average radon mitigation system uses about 876 kWh of electricity per year, although the exact amount of electricity used will vary depending on the size of the radon fan. Once the system is installed, the annual increase to your energy bill could range from $30 to $300 per year, again depending on the size of the fan.

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 cost to replace a radon fan ranges from $300 to $600 for the fan itself, with installation adding an additional $200 to $500. Overall, the total cost for replacement can range from $500 to $1,100, depending on factors such as the fan model, home size, and local labor rates. If the fan is part of a larger radon mitigation system, the price may be higher.

While DIY testing is possible, abatement generally requires professional installation to ensure efficacy and meet safety standards.

Your radon mitigation system may be loud because it’s time to replace it. Any sounds are usually from the inline fan that helps create the vacuum and resulting airflow. If you hear a new, loud mechanical or humming noise from your radon fan, it might be time to replace it. Most fans used in radon mitigation systems last up to 10 years, but may need to be replaced sooner.

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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