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*The Angi rating for Radon Detection And Reduction companies in Tollhouse, 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 Tollhouse, 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 December 14, 2025

Find Radon detection and reduction specialists in Tollhouse

Avatar for MG Remediation, Inc.
MG Remediation, Inc.
3.3(
8
)
Radon Gas - Abatement

Serving Tollhouse, CA and surrounding areas

Approved

In business since 1986

Free estimates

Customers say: Quick response

"Peter and his team at MG Remediation are professionals. They did everything they told me they would do and the radon levels dropped significantly. Great communication, too, which always matters."
Vapor Intrusion for VOC and Radon
Cleaning
Cleaning
Testing
Testing & Abatement

+4

Response time4 days
Recommended by80%of homeowners
Request Quote
Avatar for Central Valley Water Restoration
Central Valley Water Restoration
5.0(
5
)
Radon Gas - Testing

Serving Tollhouse, CA and surrounding areas

In business since 2023

Free estimates

Emergency services offered

"Tiko and Central Valley Water Restoration got to my house within an hour of me calling and they dried the house up and demolished what needed to be demolished and built it back up . They were fast and amazing. They truly care about the customer."
Water Mitigation
Water Mitigation
Water Mitigation
Water Mitigation
Water Mitigation

+27

Recommended by80%of homeowners
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Radon Detection and Reduction questions, answered by experts

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.

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

Many radon fans carry a five-year manufacturer's warranty. That said, your radon fan should last between five and ten years. Regular inspections will ensure the fan is operating properly. Unusual or exceptional noise coming from the fan or indications on your manometer or system monitor can immediately tell you that something is amiss.

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.

If your home has a sump pit, you can integrate it with a radon mitigation system. You can accomplish this by sealing the pump cover with an airtight lid that accommodates radon vent pipes and sump pump hoses. This allows the vent pipe to redirect the radon gas outside of your home.

The Tollhouse, 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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